Radeon HD 4770

GPU Code: RV740

512 MB

GDDR5

750 MHz

Boost Clock

80 W

TDP

40 nm

Process
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Technical Specifications

Core Specifications
Architecture: TeraScale
Process Size: 40 nm
Base Clock: 750 MHz
Boost Clock: 750 MHz
Shader Units: 640
TMUs: 32
ROPs: 16
Memory & Performance
Memory Size: 512 MB
Memory Type: GDDR5
Memory Bandwidth: 51.2 GB/s
Bus Interface: PCIe 2.0 x16
TDP: 80 W
Suggested PSU: 250 W
Cache & Die Information
L1 Cache: 16 KB
L2 Cache: 0.1 MB
Die Size: 137 mm²
Transistors: 0.8 billion
Transistor Density: 6.0 million/mm²

API Support

DirectX
10.1
OpenGL
3.3

Physical Specifications

Board Length: 203 mm
Power Connectors: 1x 6-pin
Display Outputs: 2x DVI, 1x S-Video

Quick Facts

Release Date: 2009-04-28
Manufacturer: ATI
Generation: Radeon R700(HD 4700)

Performance

Pixel Fill Rate 12.0 GPixel/s
Texture Fill Rate 24.0 GTexel/s
FP32 Performance 1.0 TFLOPS