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ATI RV790

Default
RV790
ATI's RV790 GPU uses the TeraScale architecture and is made using a 55 nm production process at TSMC. With a die size of 282 mm² and a transistor count of 959 million it is a medium-sized chip. RV790 supports DirectX 10.1. It features 800 shading units, 40 texture mapping units and 16 ROPs.

Graphics Processor

GPU Name
RV790
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
959 million
Density
3.4M / mm²
Die Size
282 mm²
Released
Apr 2nd, 2009

Graphics Features

DirectX
10.1
OpenGL
3.3
OpenCL
1.1
Vulkan
N/A
Shader Model
4.1

Render Config

Shading Units
800
TMUs
40
ROPs
16
Max. TDP
190 W

All TeraScale GPUs

Graphics cards using the ATI RV790 GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
ATI Radeon HD 4890 RV790 XT 1024 MB 800 40 16 850 MHz 975 MHz
ATI Radeon HD 4860 RV790 GT 512 MB 640 32 16 700 MHz 750 MHz

RV790 GPU Notes

Codename: Wekiva Plus
Graphics/Compute: GFX3
Display Core Engine: 3.1
Unified Video Decoder: 2.0