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ATI M98

Default
M98
Die Shot
Die Shot
Block Diagram
Block Diagram
ATI's M98 GPU uses the TeraScale architecture and is made using a 55 nm production process at TSMC. With a die size of 256 mm² and a transistor count of 956 million it is a medium-sized chip. M98 supports DirectX 10.1 (Feature Level 10_1). For GPU compute applications, OpenCL version 1.1 can be used. It features 800 shading units, 40 texture mapping units and 16 ROPs.
Further reading: R700 Series Instruction Set Architecture

Graphics Processor

Released
Jan 9th, 2009
GPU Name
M98
Desktop Variant
RV770
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
956 million
Density
3.7M / mm²
Die Size
256 mm²
Package
HFCBGA-1492
Codename
Wekiva

Graphics Features

DirectX
10.1 (10_1)
OpenGL
3.3
OpenCL
1.1
Vulkan
N/A
Shader Model
4.1
WDDM
1.1
Compute
GFX3
DCE
3.1
UVD
2.0

Render Config

Shading Units
800
TMUs
40
ROPs
16
Compute Units
10
Z-Stencil
64
L1 Cache
16 KB per CU
L2 Cache
256 KB

All TeraScale GPUs

ATI GPU Architecture History

Graphics cards using the ATI M98 GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
ATI Mobility Radeon HD 4850
M98 L2 1024 MB 800 40 16 503 MHz 850 MHz
ATI Mobility Radeon HD 4870
M98 XT L2 512 MB 800 40 16 550 MHz 888 MHz
ATI Mobility Radeon HD 4870 X2
M98 XT L2 1024 MB 800 40 16 550 MHz 700 MHz
ATI Mobility Radeon HD 4850 X2
M98 L2 1024 MB 800 40 16 500 MHz 700 MHz
ATI Mobility Radeon HD 4850 Mac Edition
M98 L2 512 MB 800 40 16 503 MHz 850 MHz

M98 GPU Notes

Desktop Variant: RV770
Codename: Wekiva
Graphics/Compute: GFX3
Display Core Engine: 3.1
Unified Video Decoder: 2.0

Chip Codes:
216-0732000 - M98 A11
216-0732019 - M98 A12
216-0732004 - M98 XT A11
216-0732023 - M98 XT A12
Apr 26th, 2024 14:36 EDT change timezone

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