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ATI M28

Default
M28
Block Diagram
Block Diagram
ATI's M28 GPU uses the R400 architecture and is made using a 130 nm production process at TSMC. With a die size of 289 mm² and a transistor count of 160 million it is a medium-sized chip. M28 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
M28
Architecture
R400
Foundry
TSMC
Process Size
130 nm
Transistors
160 million
Density
553.6K / mm²
Die Size
289 mm²
Released
Nov 1st, 2004

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

All R400 GPUs

ATI GPU Architecture History

Graphics cards using the ATI M28 GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
ATI Mobility Radeon X800 256 MB 12 / 6 12 12 400 MHz 400 MHz
ATI Mobility Radeon X800 XT 256 MB 16 / 6 16 16 480 MHz 550 MHz

M28 GPU Notes

Chip Variant: R423
Codename: Thor
Graphics/Compute: GFX2
Video Shader HD
Programmable pixel&vertex pipelines