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The DEC VAX supported operations on 128-bit integer ('O' or octaword) and 128-bit floating-point ('H-float' or HFLOAT) datatypes. Support for such operations was an upgrade option rather than being a standard feature. Since the VAX's registers were 32 bits wide, a 128-bit operation used four consecutive registers or four longwords in memory.
Each EU contains 2 x 128-bit FPUs. One supports 32-bit and 64-bit integer, FP16, FP32, FP64, and transcendental math functions, and the other supports only 32-bit and 64-bit integer, FP16 and FP32. Thus the FP16 (or 16-bit integer) FLOPS is twice the FP32 (or 32-bit integer) FLOPS.
Components of a GPU. A graphics processing unit (GPU) is a specialized electronic circuit initially 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 computers, workstations, and game consoles.
The Radeon HD 3800 series was based on the codenamed RV670 GPU, packed 666 million transistors on a 55 nm fabrication process and had a die size at 192 mm 2, with the same 64 shader clusters as the R600 core, but the memory bus width was reduced to 256 bits.
HD Graphics 5300 GT2 24 192 900 345.6 HD Graphics 5500 950 364.8 HD Graphics 5600 1050 403.2 HD Graphics 6000 GT3 48 384 1000 768 Iris Graphics 6100 1100 844.8 Iris Pro Graphics 6200 GT3e 128 1150 883.2 Professional HD Graphics P5700 GT2 24 192 – 1000 384 Iris Pro Graphics P6300 GT3e 48 384 128 1150 883.2
The ability to build a system with just one graphics card, and still have it be feature-complete for the time, made the RIVA 128 a lower-cost high-performance solution. Nvidia equipped the RIVA 128 with 4 MiB of SGRAM, a new memory technology for the time, clocked at 100 MHz and connected to the graphics processor via a 128-bit memory bus. [2]
The Imagine 128 GPU introduced a full 128-bit graphics processor—GPU, internal processor bus, and memory bus were all 128 bits. However, there was no, or very little, hardware support for 3D graphics operations. [15] The Imagine 128-II added Gouraud shading, 32-bit Z-buffering, double display buffering, and a 256-bit video rendering engine. [16]
Video Graphics Array:MCGA (in monochome), Nintendo 3DS lower screen HiRes, GameCube, Sun-1 color, PlayStation (e.g. Tobal No.1 and Ehrgeiz), Nintendo 64, (e.g. various Expansion Pak enhanced games), 6th Generation Consoles, Nintendo Wii