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Kelvin (microarchitecture)
GPU microarchitecture by Nvidia From Wikipedia, the free encyclopedia
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Kelvin is the codename for a GPU microarchitecture developed by Nvidia, and released in 2001, as the successor to the Celsius[1] microarchitecture. It was named with reference to William Thomson, 1st Baron Kelvin and used with the GeForce 3 and 4 series.

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Graphics features
- DirectX 8.0 (8.1 in the original Xbox)
- OpenGL 1.2 (1.5;[2][3] 1.4 in the original Xbox)
- Shader Model 1.3
- Vertex Shader 1.1
- Max VRAM size bumped to 128MB
- New memory controller with Z compression[2]
Chips
GeForce 3 (3xxx) series
- NV20, 57 million transistor
- NV2A (Xbox GPU), 57 million transistor[4]
GeForce 4 (4xxx) series
GPU list
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GeForce 3 (3xxx) series
GeForce 4 (4xxx) series
Console GPUs
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References
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