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ATI R680

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R680
Die Shot
Die Shot
Block Diagram
Block Diagram
ATI's R680 GPU uses the TeraScale architecture and is made using a 55 nm production process at TSMC. With a die size of 192 mm² and a transistor count of 666 million it is a small chip. R680 supports DirectX 10.1 (Feature Level 10_1). For GPU compute applications, OpenCL version N/A can be used. It features 320 shading units, 16 texture mapping units and 16 ROPs.
Further reading: R600 Series Instruction Set Architecture

Graphics Processor

Released
Jan 26th, 2008
GPU Name
R680
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
666 million
Density
3.5M / mm²
Die Size
192 mm²

Graphics Features

DirectX
10.1 (10_1)
OpenGL
3.3 (full)
4.0 (partial)
OpenCL
N/A
Vulkan
N/A
Shader Model
4.1
WDDM
1.1
Compute
GFX3
DCE
2.0
UVD
1.0

Render Config

Shading Units
320
TMUs
16
ROPs
16
Compute Units
4
Z-Stencil
32
Vertex Cache
32 KB
Texture Cache
32 KB
Tex L1 Cache
32 KB per 4 SPs
L2 Cache
256 KB
Max. TDP
165 W

All TeraScale GPUs

ATI GPU Architecture History

Graphics cards using the ATI R680 GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
ATI Radeon HD 3870 X2
R680 XT 512 MB 320 16 16 825 MHz 901 MHz

R680 GPU Notes

Graphics/Compute: GFX3
Display Core Engine: 2.0
Unified Video Decoder: 1.0

Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 13.1 / 13.4 Beta

Windows Vista / 7:
Catalyst Software Suite 13.9
Jun 27th, 2025 10:39 CDT change timezone

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