Report an Error

ATI R680

Default
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). It features 320 shading units, 16 texture mapping units and 16 ROPs.
Further reading: R600 Series Instruction Set Architecture

Graphics Processor

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

Graphics Features

DirectX
10.1 (10_1)
OpenGL
3.3
OpenCL
N/A
Vulkan
N/A
Shader Model
4.1
Compute
GFX3

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

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