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ATI M18

ATI's M18 GPU uses the R400 architecture and is made using a 130 nm production process at TSMC. With a die size of 281 mm² and a transistor count of 160 million it is a medium-sized chip. M18 supports DirectX 9.0b (Feature Level 9_2). It features 8 pixel shaders and 4 vertex shaders, 8 texture mapping units and 8 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
M18
Architecture
R400
Foundry
TSMC
Process Size
130 nm
Transistors
160 million
Density
569.4K / mm²
Die Size
281 mm²
Released
Jul 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
8
Vertex Shaders
4
TMUs
8
ROPs
8

All R400 GPUs

ATI GPU Architecture History

Graphics cards using the ATI M18 GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
ATI Mobility Radeon 9800 256 MB 8 / 4 8 8 350 MHz 300 MHz

M18 GPU Notes

Chip Variant: R420
Codename: Loki
Graphics/Compute: GFX2
Video Shader HD
Programmable pixel&vertex pipelines