The

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 ...

i750 is a two-chip

graphics processing unit 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 ...

composed of the 82750PB pixel processor and 82750DB display processor. The i750 chip was used in video capture/compression cards such as the Intel Smart Video Recorder and Creative Labs Video Blaster RT300. These cards were needed to allow Video for Windows to record footage from a video camera. Although Intel had made earlier chips targeting graphics (e.g., 82786 graphics coprocessor), this could be considered as

's first attempt to break into the

video controller A graphics card (also called a video card, display card, graphics accelerator, graphics adapter, VGA card/VGA, video adapter, display adapter, or colloquially GPU) is a computer expansion card that generates a feed of graphics output to a displa ...

marketplace. The effort was a failure and led to Intel leaving the market for some time. The

Indeo Indeo Video (commonly known now simply as "Indeo") is a family of audio and video formats and codecs first released in 1992, and designed for real-time video playback on desktop CPUs. While its original version was related to Intel's DVI video st ...

video compressor was originally built to work with the i750, but was later ported to other systems as well.

Technical Details

82750PA

82750PA Pixel Processor which has the performance of 12.5 MIPS and it has features of video/graphic instruction that perform operations in parallel and that brings together motion video, stills and graphics into a single video frame.

82750DA

82750DA Display Processor which supplies resolution modes and pixel formats supporting up to 1024 pixels in horizontal resolution and 585 pixels in vertical resolution. It also supports up to 16.8 million of colors.

82750PB

The 82750PB pixel processor is packaged in a 132-pin

PQFP A quad flat package (QFP) is a surface-mounted integrated circuit package with "gull wing" leads extending from each of the four sides. Socketing such packages is rare and through-hole mounting is not possible. Versions ranging from 32 to 304 ...

running at 25 MHz. It contains 57 instruction set, eight entries 64 bit vector registers (same MM0~MM7 register naming as used on the x86, the only difference being that i750 has dedicated registers while the x86 MMX CPU does not. However, the i750 lacks general purpose integer registers unlike its x86 counterpart), a 64-bit ALU, a 512×48-bit instruction RAM, a 512×16-bit data RAM, two internal 16-bit buses, a wide instruction word processor, a variable length sequence decoder, a pixel interpolator and an interface supporting a 4 GB linear address space. These features make it capable of text, 2D and 3D graphics, video compression, and real-time video decompression and video effects. It can support up to 30 frames per second. It supports

video RAM Video random-access memory (VRAM) is dedicated computer memory used to store the pixels and other graphics data as a framebuffer to be rendered on a computer monitor. It often uses a different technology than other computer memory, in order to b ...

interface which it compress and store, or retrieve and decompress data. It also can decompress high-resolution

JPEG JPEG ( , short for Joint Photographic Experts Group and sometimes retroactively referred to as JPEG 1) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degr ...

still image in approximately one second per image. This processor was available for US$49 in 1,000-unit quantities.

82750DB

The 28-MHz 82750DB display processor supports variable bits per pixel, pixels per line, and pixel widths allowing trading-offs in image quality vs. refresh rate and VRAM requirements. It performs two-dimensional UV, translate from YUV digital video format, and generates CRT synchronization and control signals. It also supports

VGA Video Graphics Array (VGA) is a video display controller and accompanying de facto graphics standard, first introduced with the IBM PS/2 line of computers in 1987, which became ubiquitous in the IBM PC compatible industry within three years. T ...

NTSC NTSC (from National Television System Committee) is the first American standard for analog television, published and adopted in 1941. In 1961, it was assigned the designation System M. It is also known as EIA standard 170. In 1953, a second ...

PAL Phase Alternating Line (PAL) is a color encoding system for analog television. It was one of three major analogue colour television standards, the others being NTSC and SECAM. In most countries it was broadcast at 625 lines, 50 fields (25 ...

and

SECAM SECAM, also written SÉCAM (, ''Séquentiel de couleur à mémoire'', French for ''sequential colour memory''), is an analog color television system that was used in France, Russia and some other countries or territories of Europe and Africa. ...

video formats. It is in 132-pin

format. This processor was available for US$56 in 1,000-unit quantities.Intel Corporation, "New Product Focus: Components: DVI Chips Boost Multimedia Capabilities", Microcomputer Solutions, January/February 1991, page 12

82750PD

Intel's low-cost i750 processor, 82750PD, and ATI's 68890 video capture Chip for video-only boards.

External links

DVI Technology i750 Video Processor Technical Specifications

References

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(without diagrams) * {{DEFAULTSORT:Intel I750 Graphics processing units Intel graphics Graphics hardware