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ATI R481

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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). 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
2.0
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 R481 XT 256 MB 16 / 6 16 16 540 MHz 590 MHz
ATI Radeon X850 XT AGP R481 XT 256 MB 16 / 6 16 16 520 MHz 540 MHz
ATI Radeon X800 GTO AGP R481 PRO 256 MB 12 / 6 12 12 400 MHz 490 MHz
ATI Radeon X800 GT AGP R481 SE 256 MB 12 / 6 12 12 475 MHz 493 MHz
ATI Radeon X850 PRO AGP 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