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Spec Mobility Radeon HD 3870 ATI
Overview
Product name ATI Mobility Radeon HD 3870
Architecture TeraScale
Generation / family Radeon HD 3000 / 2000 Series
Launch date 2008-06-04
Market segment Mobile
Board type / entry type Laptop GPU
GPU
Process node TSMC 55 nm
Die size 192 mm²
Transistor count 0.67 billion
GPU chip M88
Stream Processors 320
ROPs 16
TMUs 16
Clocks
Base / Core clock 660 MHz
Boost clock 660 MHz
Memory clock 850 MHz
Memory
Memory size 512 MB
Memory type GDDR3
Memory bus width 256-bit
Memory bandwidth 54.4 GB/s
Bus / Interface
Bus interface PCIe 2.0 x16
AGP / PCI / PCIe distinction PCIe
Power
TDP / TBP / board power 55 W
Features
DirectX support DirectX 10.1
OpenGL support OpenGL 3.3
Shader Model 4.1
Performance / Benchmarks
FP32 throughput 0.42 TFLOPS

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