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NV20 specification


Technology: 0.15 micron
Graphics core frequency: 200+ MHz (later “Ultra” and “Pro” variants are possible, e.g. at 250 MHz)
Rendering pixel pipelines: 4
4 textures per pixel
Memory interface: 128 bit
Supported memory as DDR SDRAM/SGRAM
At the time of release the first NV20 based cards will be equipped with the memory working at 250 (500) MHz
Peak bandwidth of the memory bus at 250 MHz: 8 GBytes/sec
Supported local memory size: up to 128 MBytes (the first cards, as our sample, will have 64 MBytes)
RAMDAC: 350 MHz
Max resolution: 2048x1536@75 Hz
Integrated TMDS transmitter allows connecting digital monitors and supports resolution up to 1600x1200
External bus interface: full support of AGP x2/x4 (including SBA, DME and Fast Writes) and PCI 2.2 (including Bus mastering).
Hardware T&L: effective performance around 40+ million triangles per second (our sample has a bit lower than 40 million triangles per second at a special synthetical test)
Full hardware support for all MS DirectX 8.0 and OpenGL 1.2 possibilities
Full support for hardware VertexShaders DX8, 1.1 version
Full support for hardware PixelShaders DX8, 1.0 version
Support for volume textures
Support for Cube environment mapping
Support for projective textures
Support for hardware tesselation of smooth surfaces (rectangular and triangular patches)
Hardware support for relief texturing of the following types: Embosing, Dot Product3 and EMBM (at last!)
Support for S3TC and all 5 DXTC texture compression methods
Support for primitive clipping in arbitrary set planes
Support for FSAA
Support for textures up to 4096x4096 @ 32 bit