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ATI RV770

Default
RV770
Die Shot
SIC66SIC66
Die Shot
Block Diagram
Block Diagram
ATI's RV770 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. RV770 supports DirectX 10.1. It features 800 shading units, 40 texture mapping units and 16 ROPs.

Graphics Processor

GPU Name
RV770
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
956 million
Density
3.7M / mm²
Die Size
256 mm²
Released
Jun 25th, 2008

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
151 W

All TeraScale GPUs

Graphics cards using the ATI RV770 GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
ATI Radeon HD 4870 RV770 XT 512 MB 800 40 16 750 MHz 900 MHz
ATI Radeon HD 4830 RV770 LE 512 MB 640 32 16 575 MHz 900 MHz
ATI Radeon HD 4730 RV770 CE 512 MB 640 32 8 750 MHz 900 MHz
ATI Radeon HD 4850 RV770 PRO 512 MB 800 40 16 625 MHz 993 MHz
ATI FirePro V8700 RV770 XT 1024 MB 800 40 16 750 MHz 850 MHz
ATI FirePro V8750 RV770 XT 2 GB 800 40 16 750 MHz 900 MHz
ATI FirePro V8700 Duo RV770 XT 1024 MB 800 40 16 750 MHz 850 MHz
ATI FirePro V7770 RV770 XT 1024 MB 800 40 16 625 MHz 1050 MHz
ATI FirePro V7760 RV770 XT 1024 MB 800 40 16 750 MHz 850 MHz
ATI Radeon HD 4810 RV770 CE 512 MB 640 32 8 625 MHz 900 MHz
ATI Radeon HD 4870 Mac Edition RV770 XT 512 MB 800 40 16 750 MHz 850 MHz
ATI Radeon HD 4855 RV770 PRO 512 MB 640 32 16 575 MHz 900 MHz

RV770 GPU Notes

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