ATI R481
ATI's R481 GPU uses the R400 architecture and is made using a 130 nm production process at TSMC. With a die size of 297 mm² and a transistor count of 160 million it is a medium-sized chip. R481 supports DirectX 9.0b (Feature Level 9_2). Modern GPU compute technologies are not available. It features 16 pixel shaders and 6 vertex shaders, 16 texture mapping units and 16 ROPs. Due to the lack of unified shaders you will not be able to run recent games at all (which require unified shader/DX10+ support).
Graphics Processor
- GPU Name
- R481
- Architecture
- R400
- Foundry
- TSMC
- Process Size
- 130 nm
- Transistors
- 160 million
- Density
- 538.7K / mm²
- Die Size
- 297 mm²
- Released
- Feb 28th, 2005
Graphics Features
- DirectX
- 9.0b (9_2)
- OpenGL
- 2.1
- OpenCL
- N/A
- Vulkan
- N/A
- Pixel Shader
- 2.0b
- Vertex Shader
- 2.0b
- Compute
- GFX2
Render Config
- Pixel Shaders
- 16
- Vertex Shaders
- 6
- TMUs
- 16
- ROPs
- 16
- Max. TDP
- 69 W
All R400 GPUs
ATI GPU Architecture History
Graphics cards using the ATI R481 GPU
Name | Chip | Memory | Shaders | TMUs | ROPs | GPU Clock | Memory Clock |
---|---|---|---|---|---|---|---|
ATI Radeon X850 XT Platinum AGP
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R481 XT | 256 MB | 16 / 6 | 16 | 16 | 540 MHz | 590 MHz |
ATI Radeon X850 XT AGP
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R481 XT | 256 MB | 16 / 6 | 16 | 16 | 520 MHz | 540 MHz |
ATI Radeon X800 GTO AGP
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R481 PRO | 256 MB | 12 / 6 | 12 | 12 | 400 MHz | 490 MHz |
ATI Radeon X800 GT AGP
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R481 SE | 256 MB | 12 / 6 | 12 | 12 | 475 MHz | 493 MHz |
ATI Radeon X850 PRO AGP
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R481 PRO | 256 MB | 12 / 6 | 12 | 12 | 500 MHz | 500 MHz |
R481 GPU Notes
Codename: Loki Graphics/Compute: GFX2 Video Shader HD Programmable pixel&vertex pipelines OpenGL 3.0: 42% Support OpenGL 3.1: 16% Support |