Haswell is the

codename A code name, codename, call sign, or cryptonym is a code word or name used, sometimes clandestinely, to refer to another name, word, project, or person. Code names are often used for military purposes, or in espionage. They may also be used in ...

for a processor

microarchitecture In electronics, computer science and computer engineering, microarchitecture, also called computer organization and sometimes abbreviated as μarch or uarch, is the way a given instruction set architecture (ISA) is implemented in a particular ...

developed by

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...

as the "fourth-generation core" successor to the Ivy Bridge (which is a

die shrink The term die shrink (sometimes optical shrink or process shrink) refers to the List of semiconductor scale examples, scaling of metal–oxide–semiconductor (MOS) devices. The act of shrinking a Die (integrated circuit), die creates a somewhat ...

tick Ticks are parasitic arachnids of the order Ixodida. They are part of the mite superorder Parasitiformes. Adult ticks are approximately 3 to 5 mm in length depending on age, sex, and species, but can become larger when engorged. Ticks a ...

of the Sandy Bridge microarchitecture). Intel officially announced

CPU A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, log ...

s based on this microarchitecture on June 4, 2013, at

Computex Taipei COMPUTEX Taipei, or Taipei International Information Technology Show (), is a computer expo held annually in Taipei, Taiwan. Since the early 2000s, it is one of the largest computer and technology trade shows in the world. The most recent COMP ...

2013, while a working Haswell chip was demonstrated at the 2011

Intel Developer Forum The Intel Developer Forum (IDF) was a biannual gathering of technologists to discuss Intel products and products based on Intel products. The first IDF was held in 1997. To emphasize the importance of China, the Spring 2007 IDF was held in Beijin ...

. Haswell was the last generation of Intel processor to have socketed processors on mobile. With Haswell, which uses a

22 nm process The "22 nm" node is the process step following 32 nm in CMOS MOSFET semiconductor device fabrication. It was first demonstrated by semiconductor companies for use in RAM in 2008. In 2010, Toshiba began shipping 24 nm flash memory chips, a ...

, Intel also introduced low-power processors designed for convertible or "hybrid"

ultrabooks Ultrabook is a class of premium consumer-grade notebook computers. The term was originated by and is Trademark, trademarked by Intel, replacing the earlier Centrino mobile platform. Introduced in 2011, they were originally marketed as featuring u ...

, designated by the "U" suffix. Haswell began shipping to manufacturers and OEMs in mid-2013, with its desktop chips officially launched in September 2013. Haswell CPUs are used in conjunction with the Intel 8 Series chipsets, 9 Series chipsets, and C220 series chipsets. At least one Haswell-based processor was still being sold in the Pentium G3420.

Windows 7 Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was Software release life cycle#Release to manufacturing (RTM), released to manufacturing on July 22, 2009, and became generally available on October 22, ...

through

Windows 10 Windows 10 is a major release of Microsoft's Windows NT operating system. The successor to Windows 8.1, it was Software release cycle#Release to manufacturing (RTM), released to manufacturing on July 15, 2015, and later to retail on July 2 ...

were released for the Haswell microarchitecture.

Design

The Haswell architecture is specifically designed to optimize the power savings and performance benefits from the move to

FinFET A fin field-effect transistor (FinFET) is a multigate device, a MOSFET (metal–oxide–semiconductor field-effect transistor) built on a substrate where the gate is placed on two, three, or four sides of the channel or wrapped around the chann ...

(non-planar, "3D") transistors on the improved 22 nm process node. Haswell has been launched in three major forms: * Desktop version (

LGA 1150 LGA 1150, also known as Socket H3, is a zero insertion force flip-chip land grid array (LGA) CPU socket designed by Intel for CPUs built on the Haswell microarchitecture. This socket is also used by the Haswell's successor, Broadwe ...

socket and the

LGA 2011-v3 LGA 2011, also called ''Socket R'', is a CPU socket by Intel released on November 14, 2011. It launched along with LGA 1356 to replace its predecessor, LGA 1366 (Socket B) and LGA 1567. While LGA 1356 was designed for dual-processor ...

socket): ''Haswell-DT'' * Mobile/Laptop version ( PGA socket): ''Haswell-MB'' * BGA version: ** 47 W and 57 W TDP classes: ''Haswell-H'' (for "All-in-one" systems, Mini-ITX form factor motherboards, and other small footprint formats) ** 13.5 W and 15 W TDP classes ( MCP): ''Haswell-ULT'' (for Intel's UltraBook platform) ** 10 W TDP class (SoC): ''Haswell-ULX'' (for tablets and certain UltraBook-class implementations)

Notes

* ULT = ''Ultra Low TDP''; ULX = ''Ultra Low eXtreme'' TDP * Only certain quad-core variants and BGA R-series

stock keeping unit In inventory management, a stock keeping unit (abbreviated as SKU, pronounced or ) is the unit of measure in which the stocks of a material are managed. It is a distinct type of item for sale, purchase, or tracking in inventory, such as a produ ...

s (SKUs) receive GT3e ( Intel Iris Pro 5200) integrated graphics. All other models have GT3 (

Intel HD Intel Graphics Technology (GT) is the collective name for a series of integrated graphics processors (IGPs) produced by Intel that are manufactured on the same package or die as the central processing unit (CPU). It was first introduced in 2010 ...

5000 or Iris Pro 5100), GT2 (Intel HD 4200, 4400, 4600, P4600 or P4700) or GT1 (Intel HD Graphics) integrated graphics. See also

Intel HD and Iris Graphics Intel Graphics Technology (GT) is the collective name for a series of Integrated GPU, integrated graphics processors (IGPs) produced by Intel that are manufactured on the same Semiconductor package, package or Die (integrated circuit), die as the ...

for more details. * Due to the low power requirements of tablet and Ultrabook platforms, Haswell-ULT and Haswell-ULX are only available in dual-core configurations. All other versions come as dual- or quad-core variants.

Performance

Compared to Ivy Bridge: * Approximately 8% faster

vector processing In computing, a vector processor or array processor is a central processing unit (CPU) that implements an instruction set where its Instruction (computer science), instructions are designed to operate efficiently and effectively on large Array d ...

* Up to 5% higher single-threaded performance * 6% higher multi-threaded performance * Desktop variants of Haswell draw between 8% and 23% more power under load than Ivy Bridge. * A 6% increase in sequential CPU

performance A performance is an act or process of staging or presenting a play, concert, or other form of entertainment. It is also defined as the action or process of carrying out or accomplishing an action, task, or function. Performance has evolved glo ...

(eight execution ports per core versus six) * Up to 20% performance increase over the integrated HD4000

GPU A graphics processing unit (GPU) is a specialized electronic circuit designed for digital image processing and to accelerate computer graphics, being present either as a discrete video card or embedded on motherboards, mobile phones, personal ...

(Haswell HD4600 vs Ivy Bridge's built-in Intel HD4000) * Total performance improvement on average is about 3% * Around 15 °C hotter than Ivy Bridge, while clock frequencies of over 4.6 GHz are achievable

Technology

Features carried over from Ivy Bridge

* 22 nm manufacturing process * 3D ''Tri-Gate'' FinFET transistors *

Micro-operation cache A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, located closer to a processor core, whic ...

(Uop Cache) capable of storing 1.5 K

micro-operation In computer central processing units, micro-operations (also known as micro-ops or μops, historically also as micro-actions) are detailed low-level instructions used in some designs to implement complex machine instructions (sometimes termed ma ...

s (approximately 6 KB in size) * 14- to 19-stage

instruction pipeline In computer engineering, instruction pipelining is a technique for implementing instruction-level parallelism within a single processor. Pipelining attempts to keep every part of the processor busy with some instruction by dividing incoming Mac ...

, depending on the micro-operation cache hit or miss (an approach used in the even earlier

Sandy Bridge Sandy Bridge is the List of Intel codenames, codename for Intel's 32 nm process, 32 nm microarchitecture used in the second generation of the Intel Core, Intel Core processors (Intel Core i7, Core i7, Intel Core i5, i5, Intel Core i3, i3). The Sa ...

microarchitecture) *Improve OoO window from 168 to 192 *Queue Allocation from 28/threads to 56 * Mainstream variants are up to quad-core. * Native support for

dual-channel In the fields of digital electronics and computer hardware, multi-channel memory architecture is a technology that increases the data transfer rate between the DRAM memory and the memory controller by adding more channels of communication between ...

DDR3/DDR3L memory, with up to 32 GB of

RAM Ram, ram, or RAM most commonly refers to: * A male sheep * Random-access memory, computer memory * Ram Trucks, US, since 2009 ** List of vehicles named Dodge Ram, trucks and vans ** Ram Pickup, produced by Ram Trucks Ram, ram, or RAM may also ref ...

on LGA 1150 variants * 64 KB (32 KB Instruction + 32 KB Data) L1 cache and 256 KB L2 cache per core * A total of 16

PCI Express PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe, is a high-speed standard used to connect hardware components inside computers. It is designed to replace older expansion bus standards such as Peripher ...

3.0 lanes on LGA 1150 variants

New features

CPU

* Wider core: fourth

arithmetic logic unit In computing, an arithmetic logic unit (ALU) is a Combinational logic, combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit (FPU), which operates on ...

(ALU), third

address generation unit The address generation unit (AGU), sometimes also called address computation unit (ACU), is an execution unit inside central processing units (CPUs) that calculates addresses used by the CPU to access main memory. By having address calculations ...

(AGU), second

branch execution unit A branch, also called a ramus in botany, is a stem that grows off from another stem, or when structures like veins in leaves are divided into smaller veins. History and etymology In Old English, there are numerous words for branch, includ ...

(BEU), deeper buffers, higher cache bandwidth, improved front-end and

memory controller A memory controller, also known as memory chip controller (MCC) or a memory controller unit (MCU), is a digital circuit that manages the flow of data going to and from a computer's main memory. When a memory controller is integrated into anothe ...

, higher load/store bandwidth. * New instructions (HNI, includes

Advanced Vector Extensions 2 Advanced Vector Extensions (AVX, also known as Gesher New Instructions and then Sandy Bridge New Instructions) are SIMD extensions to the x86 instruction set architecture for microprocessors from Intel and Advanced Micro Devices (AMD). They were ...

(AVX2),

gather Gather, gatherer, or gathering may refer to: Anthropology and sociology *Hunter-gatherer, a person or a society whose subsistence depends on hunting and gathering of wild foods * Intensive gathering, the practice of cultivating wild plants as a s ...

, BMI1, BMI2, ABM and

FMA3 The FMA instruction set is an extension to the 128- and 256-bit Streaming SIMD Extensions instructions in the x86 microprocessor instruction set to perform fused multiply–add (FMA) operations. There are two variants: * FMA4 is supported in AM ...

support). * The instruction decode queue, which holds instructions after they have been decoded, is no longer statically partitioned between the two threads that each core can service. * Intel

Transactional Synchronization Extensions Transactional Synchronization Extensions (TSX), also called Transactional Synchronization Extensions New Instructions (TSX-NI), is an extension to the x86 instruction set architecture (ISA) that adds hardware transactional memory support, speeding ...

(TSX) for the Haswell-EX variant. In August 2014 Intel announced that a bug exists in the TSX implementation on the current steppings of Haswell, Haswell-E, Haswell-EP and early Broadwell CPUs, which resulted in disabling the TSX feature on affected CPUs via a

microcode In processor design, microcode serves as an intermediary layer situated between the central processing unit (CPU) hardware and the programmer-visible instruction set architecture of a computer. It consists of a set of hardware-level instructions ...

update. *

Fully integrated voltage regulator A voltage regulator module (VRM), sometimes called processor power module (PPM), is a buck converter that provides the microprocessor and chipset the appropriate supply voltage, converting , or to lower voltages required by the devices, allowi ...

(FIVR), thereby moving some of the components from

motherboard A motherboard, also called a mainboard, a system board, a logic board, and informally a mobo (see #Nomenclature, "Nomenclature" section), is the main printed circuit board (PCB) in general-purpose computers and other expandable systems. It ho ...

onto the CPU. * New advanced power-saving system; due to Haswell's new low-power C6 and C7 sleep states, not all power supply units (PSUs) are suitable for computers with Haswell CPUs. * 37, 47, 57 W thermal design power (TDP) mobile processors. * 35, 45, 65, 84, 88, 95 and 130–140 W (high-end, Haswell-E) TDP desktop processors. * 15 W or 11.5W TDP processors for the

Ultrabook Ultrabook is a class of premium consumer-grade notebook computers. The term was originated by and is trademarked by Intel, replacing the earlier Centrino mobile platform. Introduced in 2011, they were originally marketed as featuring ultra thi ...

platform (multi-chip package like Westmere) leading to reduced heat, which results in thinner as well as lighter Ultrabooks, but the performance level is slightly lower than the 17 W version. :

GPU

* Hardware graphics support for

Direct3D 11.1 Direct3D is a graphics application programming interface (API) for Microsoft Windows. Part of DirectX, Direct3D is used to render three-dimensional graphics in applications where performance is important, such as games. Direct3D uses hardware a ...

and

OpenGL OpenGL (Open Graphics Library) is a Language-independent specification, cross-language, cross-platform application programming interface (API) for rendering 2D computer graphics, 2D and 3D computer graphics, 3D vector graphics. The API is typic ...

4.3. Intel 10.18.14.5180 driver is the last planned driver release on Windows 7/8.1. * Four versions of the integrated GPU: GT1, GT2, GT3 and GT3e, where GT3 version has 40 execution units (EUs). Haswell's predecessor, Ivy Bridge, has a maximum of 16 EUs. GT3e version with 40 EUs and on-package 128 MB of embedded DRAM (

eDRAM Embedded DRAM (eDRAM) is dynamic random-access memory (DRAM) integrated on the same die or multi-chip module (MCM) of an application-specific integrated circuit (ASIC) or microprocessor. eDRAM's cost-per-bit is higher when compared to equivale ...

), called

Crystalwell Intel Graphics Technology (GT) is the collective name for a series of integrated graphics processors (IGPs) produced by Intel that are manufactured on the same package or die as the central processing unit (CPU). It was first introduced in 2010 ...

, is available only in mobile H- SKUs and desktop ( BGA-only) R-SKUs. Effectively, this eDRAM is a Level 4 cache; it is shared dynamically between the on-die GPU and CPU, and serving as a

victim cache A victim cache is a small, typically fully associative cache placed in the refill path of a CPU cache. It stores all the blocks evicted from that level of cache and was originally proposed in 1990. In modern architectures, this function is typicall ...

to the CPU's Level 3 cache. *

HEVC High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard designed as part of the MPEG-H project as a successor to the widely used Advanced Video Coding (AVC, H.264, or MPEG-4 Part 10). In co ...

hardware decoding.

I/O

* New sockets and chipsets: ** LGA 1150 for desktops, and rPGA947 and BGA1364 for the mobile market. ** Z97 (performance) and H97 (mainstream)

chipset In a computer system, a chipset is a set of electronic components on one or more integrated circuits that manages the data flow between the processor, memory and peripherals. The chipset is usually found on the motherboard of computers. Chips ...

s for the Haswell Refresh and Broadwell, in Q2 2014. **

with

X99 Intel X99, List of Intel codenames, codenamed "Wellsburg", is a Platform Controller Hub (PCH) designed and manufactured by Intel, targeted at the Desktop computer, high-end desktop (HEDT) and enthusiast segments of the Intel product lineup. Th ...

chipset for the enthusiast-class desktop platform ''Haswell-E''. *

DDR4 Double Data Rate 4 Synchronous Dynamic Random-Access Memory (DDR4 SDRAM) is a type of synchronous dynamic random-access memory with a high bandwidth ("double data rate") interface. Released to the market in 2014, it is a variant of dynamic rando ...

for enterprise/server segments and for the Enthusiast-Class Desktop Platform Haswell-E * Variable Base clock (BClk) like

LGA 2011 LGA 2011, also called ''Socket R'', is a CPU socket by Intel released on November 14, 2011. It launched along with LGA 1356 to replace its predecessor, LGA 1366 (Socket B) and LGA 1567. While LGA 1356 was designed for dual-processor or ...

. * Optional support for

Thunderbolt A thunderbolt or lightning bolt is a symbolic representation of lightning when accompanied by a loud thunderclap. In Indo-European mythology, the thunderbolt was identified with the 'Sky Father'; this association is also found in later Hel ...

technology and Thunderbolt 2.0 * Shrink of the

Platform Controller Hub The Platform Controller Hub (PCH) is a family of Intel's single-chip chipsets, first introduced in 2009. It is the successor to the Intel Hub Architecture, which used two chipsa northbridge and southbridge, and first appeared in the Intel 5 Se ...

(PCH), from

65 nm The 65 nm process is an advanced lithographic node used in volume CMOS (MOSFET) semiconductor fabrication. Printed linewidths (i.e. transistor gate lengths) can reach as low as 25 nm on a nominally 65 nm process, while the pitch bet ...

32 nm The "32 nm" node is the step following the "45 nm" process in CMOS (MOSFET) semiconductor device fabrication. "32-nanometre" refers to the average half-pitch (i.e., half the distance between identical features) of a memory cell at this technolo ...

Server processors features

Haswell-EP Xeon (; ) is a brand of x86 microprocessors designed, manufactured, and marketed by Intel, targeted at the non-consumer workstation, Server (computing), server, and embedded system, embedded markets. It was introduced in June 1998. Xeon proces ...

variant, released in September 2014, with up to 18 cores and marketed as the Xeon E5-1600 v3 and Xeon E5-2600 v3 series. * Haswell-EX variant, released in May 2015, with 18 cores and functioning TSX. * A new

cache Cache, caching, or caché may refer to: Science and technology * Cache (computing), a technique used in computer storage for easier data access * Cache (biology) or hoarding, a food storing behavior of animals * Cache (archaeology), artifacts p ...

design. * Up to 35 MB total unified cache (

last level cache A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data (computer science), data from the main memory. A cache is a smaller, faster memory, located closer to ...

, LLC) for Haswell-EP and up to 40 MB for Haswell-EX. *

socket replaces

for the Haswell EP; the new socket has the same number of pins, but it is keyed differently due to electrical incompatibility. * The already launched Xeon E3 v3 Haswells will get a refresh in spring 2014, together with a refreshed Intel C220 series PCH chipset. * TDP up to 160 W for Haswell-EP. * Haswell-EP models with ten and more cores support ''cluster on die'' (COD) operation mode, allowing CPU's multiple columns of cores and

(LLC) slices to be logically divided into what is presented as two

non-uniform memory access Non-uniform memory access (NUMA) is a computer storage, computer memory design used in multiprocessing, where the memory access time depends on the memory location relative to the processor. Under NUMA, a processor can access its own local memory ...

(NUMA) CPUs to the operating system. By keeping data and instructions local to the "partition" of CPU which is processing them, therefore decreasing the LLC access latency, COD brings performance improvements to NUMA-aware operating systems and applications.

Haswell Refresh

Around the middle of 2014, Intel released a refresh of Haswell, simply titled ''Haswell Refresh''. When compared to the original Haswell CPUs lineup, Haswell Refresh CPUs offer a modest increase in clock frequencies, usually of 100 MHz. Haswell Refresh CPUs are supported by Intel's ''9 Series'' chipsets (Z97 and H97, codenamed Wildcat Point), while motherboards with ''8 Series'' chipsets (codenamed

Lynx Point Acromelanism is a genetic condition that results in pigmentation being affected by temperature. It results in point coloration where the extremities of an animal are a different colour to the rest of the body. It is commonly known for the colorati ...

) usually require a BIOS update to support Haswell Refresh CPUs. The CPUs codenamed ''Devil's Canyon'', covering the i5 and i7 K-series SKUs, employ a new and improved

thermal interface material A thermal interface material (shortened to TIM) is any material that is inserted between two components in order to enhance the thermal coupling between them. A common use is heat dissipation, in which the TIM is inserted between a heat-producing de ...

(TIM) called next-generation polymer thermal interface material (''NGPTIM''). This improved TIM reduces the CPU's operating temperatures and improves the overclocking potential, as something that had been problematic since the introduction of Ivy Bridge. Other changes for the Devil's Canyon CPUs include a TDP increase to 88 W, additional decoupling capacitors to help smooth out the outputs from the fully integrated voltage regulator (FIVR), and support for the

VT-d x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-a ...

that was previously limited to non-K-series SKUs.

TSX The Toronto Stock Exchange (TSX; ) is a stock exchange located in Toronto, Ontario, Canada. It is the List of stock exchanges, 10th largest exchange in the world and the third largest in North America based on market capitalization. Based in th ...

was another feature brought over from the non-K-series SKUs, until August 2014 when a microcode update disabled TSX due to a bug that was discovered in its implementation.

Windows XP and Vista support

While Ivy Bridge is the last Intel processor to fully support all versions of Windows XP, Haswell includes limited driver support for certain XP editions such as POSReady2009. People have modified the graphics driver for these versions to adapt to normal Windows XP to varying degrees of success. Windows Vista support is also dropped with this processor as well. People who have installed x64 version of Vista have reported various problems such as services not starting automatically. The KB4493471 update (officially intended only for

Windows Server 2008 Windows Server 2008, codenamed "Longhorn Server" (alternatives: "Windows Vista Server" or "Windows Server Vista"), is the seventh major version of the Windows NT operating system produced by Microsoft to be released under the Windows Server b ...

, but can be installed on Vista) contains a HAL driver that allegedly fixes these issues; however, upon several tests it's been confirmed - it doesn't fix any of the issues. Windows XP and earlier, and all x86 versions and editions of Vista are unaffected by this bug.

List of Haswell processors

Desktop processors

* All models support: '' MMX, SSE,

SSE2 SSE2 (Streaming SIMD Extensions 2) is one of the Intel SIMD (Single Instruction, Multiple Data) processor supplementary instruction sets introduced by Intel with the initial version of the Pentium 4 in 2000. SSE2 instructions allow the use of ...

SSE3 SSE3, Streaming SIMD Extensions 3, also known by its Intel code name Prescott New Instructions (PNI), is the third iteration of the SSE instruction set for the IA-32 (x86) architecture. Intel introduced SSE3 in early 2004 with the Prescott revis ...

SSSE3 Supplemental Streaming SIMD Extensions 3 (SSSE3 or SSE3S) is a SIMD instruction set created by Intel and is the fourth iteration of the SSE technology. History SSSE3 was first introduced with Intel processors based on the Core microarchitect ...

SSE4.1 SSE4 (Streaming SIMD Extensions 4) is a SIMD CPU instruction set used in the Intel Core (microarchitecture), Core microarchitecture and AMD K10, AMD K10 (K8L). It was announced on September 27, 2006, at the Fall 2006 Intel Developer Forum, with va ...

, SSE4.2,

F16C The F16C (previously/informally known as CVT16) instruction set is an x86 instruction set architecture extension which provides support for converting between half-precision and standard IEEE single-precision floating-point formats. History T ...

, Enhanced Intel

SpeedStep Enhanced SpeedStep is a series of dynamic frequency scaling technologies (codenamed Geyserville and including SpeedStep, SpeedStep II, and SpeedStep III) built into some Intel's microprocessors that allow the clock speed of the processor to be ...

Technology (EIST),

Intel 64 x86-64 (also known as x64, x86_64, AMD64, and Intel 64) is a 64-bit extension of the x86 instruction set. It was announced in 1999 and first available in the AMD Opteron family in 2003. It introduces two new operating modes: 64-bit mode an ...

, XD bit (an

NX bit The NX bit (no-execute bit) is a processor feature that separates areas of a virtual address space (the memory layout a program uses) into sections for storing data or program instructions. An operating system supporting the NX bit can mark certai ...

implementation),

Intel VT-x x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-a ...

,'' and ''

Smart Cache A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, located closer to a processor core, which ...

.'' ** Core i3, i5 and i7 support ''

AVX AVX may refer to: Computing * Advanced Vector Extensions, an instruction set extension in the x86 microprocessor architecture ** AVX2, an expansion of the AVX instruction set ** AVX-512, 512-bit extensions to the 256-bit AVX * Softwin AVX (AntiViru ...

AVX2 Advanced Vector Extensions (AVX, also known as Gesher New Instructions and then Sandy Bridge New Instructions) are SIMD extensions to the x86 instruction set architecture for microprocessors from Intel and Advanced Micro Devices (AMD). They w ...

BMI1 Polycomb complex protein BMI-1 also known as polycomb group RING finger protein 4 (PCGF4) or RING finger protein 51 (RNF51) is a protein that in humans is encoded by the ''BMI1'' gene (B cell-specific Moloney murine leukemia virus integration s ...

BMI2 Bit manipulation instructions sets (BMI sets) are extensions to the x86 instruction set architecture for microprocessors from Intel and AMD. The purpose of these instruction sets is to improve the speed of bit manipulation. All the instructions i ...

,'' and ''

AES-NI An Advanced Encryption Standard instruction set (AES instruction set) is a set of instructions that are specifically designed to perform AES encryption and decryption operations efficiently. These instructions are typically found in modern proces ...

.'' ** Core i3 and i7, as well as the Core i5-4570T and i5-4570TE, support '' Hyper-Threading (HT)''. ** Core i5 and i7 support ''

Turbo Boost Intel Turbo Boost is Intel's trade name for central processing units' (CPUs') dynamic frequency scaling feature that automatically raises certain versions of its operating frequency when demanding tasks are running, thus enabling a higher result ...

2.0.'' ** Although it was initially supported on selected models, since August 2014 desktop variants no longer support ''

'' due to a bug that was discovered in its implementation; as a workaround, a microcode update disabled the TSX feature. ** SKUs below 45xx as well as R-series and K-series SKUs do not support ''

Trusted Execution Technology Intel Trusted Execution Technology (Intel TXT, formerly known as LaGrande Technology) is a computer hardware technology of which the primary goals are: * Attestation of the authenticity of a platform and its operating system. * Assuring that an ...

'' or ''

vPro The VPRO (stylized vpro; originally an acronym for ''Vrijzinnig Protestantse Radio Omroep'', lit. 'Liberal Protestant Radio Broadcaster', nowadays known as ''Omroepvereniging VPRO'') is a Netherlands, Dutch Public broadcasting, public broadca ...

.'' ** ''

Intel VT-d x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-a ...

'', which is Intel's IOMMU, is supported on all i5 and i7 SKUs except the i5-4670K and i7-4770K. Support for VT-d requires the chipset and motherboard to also support VT-d. ** Models i5-4690K and i7-4790K, codenamed Devil's Canyon, have a better internal

thermal grease Thermal paste (also called thermal compound, thermal grease, thermal interface material (TIM), thermal gel, heat paste, heat sink compound, heat sink paste or CPU grease) is a Thermal conductivity, thermally conductive (but usually not Insula ...

to help heat escape and an improved internal

voltage regulator A voltage regulator is a system designed to automatically maintain a constant voltage. It may use a simple feed-forward design or may include negative feedback. It may use an electromechanical mechanism or electronic components. Depending on the ...

("FIVR"), to help deliver cleaner power in situations like overclocking. * Transistors: 1.4 billion * Die size: 177 mm² *

in following variants: ** R-series desktop processors feature Intel Iris Pro 5200 graphics (GT3e). ** The i3-41xxx processors include HD 4400 graphics (GT2). ** All other i3, i5 and i7 desktop processors include Intel HD 4600 graphics (GT2). ** Celeron and Pentium processors contain Intel HD Graphics (GT1). * Pentium G3258, also known as the ''Pentium Anniversary Edition'', has an unlocked multiplier. Its release marks 20 years of "Pentium" as a brand. The following table lists available desktop processors. : Some of these configurations could be disabled by the chipset. For example, H-series chipsets disable all PCIe 3.0 lane configurations except 1×16. : This feature also requires a chipset that supports VT-d like the Q87 chipset or the X99 chipset. : This is called ''20th Anniversary Edition'' and has an unlocked multiplier. SKU suffixes to denote: * K unlocked (adjustable CPU multiplier up to 63x) **The Pentium G3258 CPU is unlocked despite not having the K-suffix. * S performance-optimized lifestyle (low power with 65 W TDP) * T power-optimized lifestyle (ultra low power with 35–45 W TDP) * R BGA packaging / High-performance GPU (Iris Pro 5200 (GT3e)) * X extreme edition (adjustable CPU ratio with no ratio limit)

Server processors

* All models support: '' MMX, SSE,

, SSE4.2,

(Advanced Vector Extensions),

, BMI (Bit Manipulation Instructions 1)+BMI2, Enhanced Intel

Technology (EIST),

, XD bit (an

implementation), TXT,

Intel vPro Intel vPro technology is an umbrella marketing term used by Intel for a large collection of computer hardware technologies, including VT-x, VT-d, Trusted Execution Technology (TXT), and Intel Active Management Technology (AMT). When the vPro ...

, hyper-threading (except E3-1220 v3 and E3-1225 v3),

2.0,

'', and ''Smart Cache.'' * Haswell-EX models (E7-48xx/88xx v3) support ''

'', while for Haswell-E, Haswell-WS (E3-12xx v3) and Haswell-EP (E5-16xx/26xx v3) models it was disabled via a microcode update in August 2014, due to a bug that was discovered in the TSX implementation. * Transistors: 5.56 billion * Die size: 661 mm² The first digit of the model number designates the largest supported multi-socket configuration; thus, E5-26xx v3 models support up to dual-socket configurations, while the E7-48xx v3 and E7-88xx v3 models support up to quad- and eight-socket configurations, respectively. Also, E5-16xx/26xx v3 and E7-48xx/88xx v3 models have no integrated GPU. Lists of launched server processors are below, split between Haswell E3-12xx v3, E5-16xx/26xx v3 and E7-48xx/88xx v3 models. SKU suffixes to denote: * L low power

Mobile processors

* All models support: '' MMX, SSE,

, SSE4.2, F16C, Enhanced Intel

Technology (EIST),

, XD bit (an

implementation)'', and ''Smart Cache.'' ** Core i3, i5 and i7 support ''

, BMI1, BMI2,

'', and '' hyper-threading (HT)''. ** Core i3, i5 and i7 except the Core i3-4000M support ''

''. ** Core i5 and i7 except the Core i5-4410E, i5-4402EC, i7-4700EC, and i7-4702EC support ''

2.0.'' * Haswell-ULT and ULX: Platform Controller Hub (PCH) integrated into the CPU package, slightly reducing the amount of space used on motherboards. * Transistors: 1.3 billion * Die size: 181 mm² The following table lists available mobile processors.

When a cooler or quieter mode of operation is desired, this mode specifies a lower TDP and lower guaranteed frequency versus the nominal mode.
This is the processor's rated frequency and TDP.
When extra cooling is available, this mode specifies a higher TDP and higher guaranteed frequency versus the nominal mode.

SKU suffixes to denote: * M dual-core mobile ( Socket G3) * MQ quad-core mobile ( Socket G3) * U ultra-low power (BGA1168 packaging) * MX quad-core extreme mobile ( Socket G3) * Y extreme low-power (BGA1168 packaging) * H dual-core BGA1364 packaging * HQ quad-core BGA1364 packaging * E embedded version of H * EQ embedded version of HQ

Notes

References

External links

* * * * * * {{DEFAULTSORT:Haswell (microarchitecture) Haswell microarchitecture Intel microarchitectures Transactional memory X86 microarchitectures Computer-related introductions in 2013