Nvidia Kelvin
Release date 2001-2003 2001
Architecture Kelvin
Fabrication process 150 nm
API support
Direct3D 8.0
OpenGL 1.2 (1.5)
History
Support status
Unsupported
Photo of Lord Kelvin, eponym of architecture Kelvin is the codename for a GPU microarchitecture developed by Nvidia , and released in 2001, as the successor to the Celsius microarchitecture. It was named with reference to William Thomson, 1st Baron Kelvin and used with the GeForce 3 and 4 series.
While Kelvin was not used as a marketing name at the time of the GeForce3's launch in 2001, the public name was first used by the nouveau Linux driver, and later on the Nvidia website.
Graphics features DirectX 8.0 (8.1 in the original Xbox )OpenGL 1.2 (1.5; 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 Chips GeForce 3 (3xxx) series NV20, 57 million transistor GeForce 4 (4xxx) series Crush11, 20 million transistor NV17, 29 million transistor NV18, 29 million transistor NV25, 63 million transistor NV28, 36 million transistor NV2A (Xbox GPU), 57 million transistor GPU list GeForce 3 (3xxx) series Model Launch Code name Fab (nm )Bus interface Core clock (MHz ) Memory clock (MHz ) Core config1 Fillrate Memory MOperations/s MPixels/s MTexels/s MVertices/s Size (MB ) Bandwidth (GB /s) Bus type Bus width (bit ) GeForce3 Ti200 1 October 2001 NV20 TSMC 150nmAGP 4× PCI 175 200 4:1:8:4 700 700 1400 42.75 64 128 6.4 DDR 128 GeForce3 27 February 2001 200 230 800 800 1600 50 64 7.36 GeForce3 Ti500 1 October 2001 240 250 960 960 1920 60 8
GeForce 4 (4xxx) series Model Launch Code name Fab (nm )Bus interface Core clock (MHz ) Memory clock (MHz ) Core config1 Fillrate Memory Supported API version MOperations/s MPixels/s MTexels/s MVertices/s Size (MB ) Bandwidth (GB /s) Bus type Bus width (bit ) Direct3D OpenGL GeForce4 MX IGP + nForce2 1 October 2002 NV1F TSMC 150nmFSB 250 133 200[citation needed ] 2:0:4:2 500 500 1000 0 Up to 128 system RAM 2.128 6.4[citation needed ] DDR 64 128 7.0 1.2 GeForce4 MX420 6 February 2002 NV17 AGP 4× PCI 166 64 2.656 SDR DDR 128 (SDR) 64 (DDR) GeForce4 MX440 SE 2002 64 128 5.312 DDR 128 GeForce MX4000 14 December 2003 NV18B AGP 8× PCI 2.656 64 GeForce PCX4300 19 February 2004 PCIe ×16 128 GeForce4 MX440 6 February 2002 NV17 AGP 4× PCI 275 200 550 550 1100 64 128 6.4 128 GeForce4 MX440 8x 25 September 2002 NV18 AGP 8× PCI 250 8 GeForce4 MX460 6 February 2002 NV17 AGP 4× PCI 300 275 600 600 1200 GeForce4 Ti4200 16 April 2002 NV25 AGP 4× 250 222 (128 MB) 250 (64 MB) 4:2:8:4 1000 1000 2000 125 7.104 (128 MB) 8 (64 MB) 8.0a 1.3 GeForce4 Ti4200 8x 25 September 2002 NV28 AGP 8× 250 128 8 GeForce4 Ti4400 6 February 2002 NV25 AGP 4× 275 275 1100 1100 2200 137.5 8.8 GeForce4 Ti4400 8x (Ti4800SE2) 20 January 2003 NV28 AGP 8× GeForce4 Ti4600 6 February 2002 NV25 AGP 4× 300 325 1200 1200 2400 150 10.4 GeForce4 Ti4600 8x (Ti48003) 20 January 2003 NV28 AGP 8× Model Launch Code name Fab (nm )Bus interface Core clock (MHz ) Memory clock (MHz ) Core config1 Fillrate Memory Supported API version MOperations/s MPixels/s MTexels/s MVertices/s Size (MB ) Bandwidth (GB /s) Bus type Bus width (bit ) Direct3D OpenGL
Model Features nFiniteFX II Engine Video Processing Engine (VPE) GeForce4 MX420 No Yes GeForce4 MX440 SE No Yes GeForce4 MX4000 No Yes GeForce4 PCX4300 No Yes GeForce4 MX440 No Yes GeForce4 MX440 8X No Yes GeForce4 MX460 No Yes GeForce4 Ti4200 Yes No GeForce4 Ti4200 8x Yes No GeForce4 Ti4400 Yes No GeForce4 Ti4400 8x Yes No GeForce4 Ti4600 Yes No GeForce4 Ti4600 8x Yes No
Console GPUs Model Launch Code name Fab (nm )Bus interface Core clock (MHz ) Memory clock (MHz ) Core config1,2,3 Fillrate Memory Latest supported API version MOperations/s MTexels /sMPixels /sMTri/s Size (MB ) Bandwidth (GB /s) Bus type Bus width (bit ) Direct3D OpenGL XGPU (Xbox ) November 15, 2001 NV2A TSMC 150nm Integrated 233 200 4:2:8:41 5,800 1,864 932 116.5 64 6.4 DDR 128 8.1 1.4
See also Notes 