The ARM Cortex-A57 is a
central processing unit
A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, an ...
implementing the
ARMv8-A 64-bit
instruction set
In computer science, an instruction set architecture (ISA), also called computer architecture, is an abstract model of a computer. A device that executes instructions described by that ISA, such as a central processing unit (CPU), is called an ' ...
designed by
ARM Holdings
Arm is a British semiconductor and software design company based in Cambridge, England.
Its primary business is in the design of ARM processors (CPUs). It also designs other chips, provides software development tools under the DS-5, RealView an ...
. The Cortex-A57 is an
out-of-order superscalar
A superscalar processor is a CPU that implements a form of parallelism called instruction-level parallelism within a single processor. In contrast to a scalar processor, which can execute at most one single instruction per clock cycle, a sup ...
pipeline.
It is available as
SIP core to licensees, and its design makes it suitable for integration with other SIP cores (e.g.
GPU,
display controller,
DSP
DSP may refer to:
Computing
* Digital signal processing, the mathematical manipulation of an information signal
* Digital signal processor, a microprocessor designed for digital signal processing
* Yamaha DSP-1, a proprietary digital signal ...
,
image processor, etc.) into one
die
Die, as a verb, refers to death, the cessation of life.
Die may also refer to:
Games
* Die, singular of dice, small throwable objects used for producing random numbers
Manufacturing
* Die (integrated circuit), a rectangular piece of a semicondu ...
constituting a
system on a chip
A system on a chip or system-on-chip (SoC ; pl. ''SoCs'' ) is an integrated circuit that integrates most or all components of a computer or other electronic system. These components almost always include a central processing unit (CPU), memory ...
(SoC).
Overview
* Pipelined processor with deeply
out of order,
speculative issue 3-way
superscalar
A superscalar processor is a CPU that implements a form of parallelism called instruction-level parallelism within a single processor. In contrast to a scalar processor, which can execute at most one single instruction per clock cycle, a sup ...
execution pipeline
* DSP and
NEON
Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. It was discovered (along with krypton ...
SIMD extensions are mandatory per core
*
VFPv4 Floating Point Unit onboard (per core)
*
Hardware virtualization support
*
Thumb-2
ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of reduced instruction set computer (RISC) instruction set architectures for computer processors, configured ...
instruction set encoding reduces the size of 32-bit programs with little impact on performance.
*
TrustZone
ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of reduced instruction set computer (RISC) instruction set architectures for computer processors, configure ...
security extensions
* Program Trace Macrocell and CoreSight Design Kit for unobtrusive tracing of instruction execution
* 32 KiB data (2-way set-associative) + 48 KiB instruction (3-way set-associative) L1 cache per core
* Integrated low-latency level-2 (16-way set-associative) cache controller, 512 KB, 1 MB, or 2 MB configurable size per cluster
* 48-entry fully associative L1 instruction Translation Lookaside Buffer (TLB) with native support for 4 KiB, 64 KiB, and 1 MB page sizes
** 4-way set-associative of 1024-entry L2 TLB
* 2-level dynamic predictor with Branch Target Buffer (BTB) for fast target generation
* Static branch predictor
* Indirect predictor
* Return stack
Chips
In January 2014,
AMD
Advanced Micro Devices, Inc. (AMD) is an American multinational semiconductor company based in Santa Clara, California, that develops computer processors and related technologies for business and consumer markets. While it initially manufactur ...
announced the
Opteron A1100
Opteron is AMD's x86 former server and workstation processor line, and was the first processor which supported the AMD64 instruction set architecture (known generically as x86-64 or AMD64). It was released on April 22, 2003, with the ''SledgeH ...
. Intended for servers, the A1100 has four or eight Cortex-A57 cores, support for up to 128 GiB of
DDR3
Double Data Rate 3 Synchronous Dynamic Random-Access Memory (DDR3 SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) with a high bandwidth ("double data rate") interface, and has been in use since 2007. It is the higher-speed ...
or
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 ...
RAM, an eight-lane
PCIe controller, eight SATA (6 Gbit/s) ports, and two
10 Gigabit Ethernet
10 Gigabit Ethernet (10GE, 10GbE, or 10 GigE) is a group of computer networking technologies for transmitting Ethernet frames at a rate of 10 gigabits per second. It was first defined by the IEEE 802.3ae-2002 standard. Unlike previous Eth ...
ports. The A1100 series was released in January 2016, with four and eight core versions.
Qualcomm
Qualcomm () is an American multinational corporation headquartered in San Diego, California, and incorporated in Delaware. It creates semiconductors, software, and services related to wireless technology. It owns patents critical to the 5G, 4 ...
's first offering which was made available for sampling Q4 2014 was the
Snapdragon 810.
It contains four Cortex-A57 and four
Cortex-A53 cores in a
big.LITTLE
ARM big.LITTLE is a heterogeneous computing architecture developed by ARM Holdings, coupling relatively battery-saving and slower processor cores (''LITTLE'') with relatively more powerful and power-hungry ones (''big''). Typically, only one "s ...
configuration.
Samsung
The Samsung Group (or simply Samsung) ( ko, 삼성 ) is a South Korean multinational manufacturing conglomerate headquartered in Samsung Town, Seoul, South Korea. It comprises numerous affiliated businesses, most of them united under the ...
also provides Cortex-A57-based
SoC's, the first one being
Exynos Octa 5433 which was available for sampling from Q4 2014.
In March, 2015,
Nvidia
Nvidia CorporationOfficially written as NVIDIA and stylized in its logo as VIDIA with the lowercase "n" the same height as the uppercase "VIDIA"; formerly stylized as VIDIA with a large italicized lowercase "n" on products from the mid 1990s to ...
released the
Tegra X1
Tegra is a system on a chip (SoC) series developed by Nvidia for mobile devices such as smartphones, personal digital assistants, and mobile Internet devices. The Tegra integrates an ARM architecture central processing unit (CPU), graphics p ...
SoC, which has four A57 cores running at a maximum of 2 GHz.
See also
*
ARM Cortex-A15
The ARM Cortex-A15 MPCore is a 32-bit processor core licensed by ARM Holdings implementing the ARMv7-A architecture. It is a multicore processor with out-of-order superscalar pipeline running at up to 2.5 GHz.
Overview
ARM has claimed ...
, predecessor
*
ARM Cortex-A72
The ARM Cortex-A72 is a central processing unit implementing the ARMv8-A 64-bit instruction set designed by ARM Holdings' Austin design centre. The Cortex-A72 is a 3-way decode out-of-order superscalar pipeline. It is available as SIP core to l ...
, successor
*
Comparison of ARMv8-A cores, ARMv8 family
*
Comparison of ARMv7-A cores
This is a comparison of processors based on the ARM family of instruction sets designed by ARM Holdings and 3rd parties, sorted by version of the ARM instruction set, release and name.
ARMv6
ARMv7-A
This is a table comparing central proc ...
, ARMv7 family
References
External links
*
*
{{Clear
ARM processors