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Spec Radeon HD 3870 X2 ATI
Overview
Product name ATI Radeon HD 3870 X2
Architecture TeraScale
Generation / family Radeon HD 3000 / 2000 Series
Launch date 2008-01-26
Market segment Gaming
Board type / entry type Reference GPU
GPU
Process node TSMC 55 nm
Die size 192 mm²
Transistor count 0.67 billion
GPU chip R680
Stream Processors 320
ROPs 16
TMUs 16
Clocks
Base / Core clock 825 MHz
Boost clock 825 MHz
Memory clock 901 MHz
Memory
Memory size 512 MB
Memory type GDDR3
Memory bus width 256-bit
Memory bandwidth 57.66 GB/s
Bus / Interface
Bus interface PCIe 2.0 x16
AGP / PCI / PCIe distinction PCIe
Power
TDP / TBP / board power 165 W
Recommended PSU 450 W
Slot width Dual-slot
Display / Media
Display outputs 2x DVI, 1x S-Video
Features
DirectX support DirectX 10.1
OpenGL support OpenGL 3.3
Shader Model 4.1
Performance / Benchmarks
FP32 throughput 0.53 TFLOPS

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