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ATI Mobility Radeon HD 3870 X2

ATI Mobility Radeon HD 3870 X2 Image

Graphics Processor

GPU Name: M88
Process Size: 55 nm
Transistors: 666 million
Die Size: 192 mm²

Graphics Card

Released: Sep 1st, 2008
Production Status: End-of-life
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 660 MHz
Memory Clock: 850 MHz
1700 MHz effective


Memory Size: 512 MB x2
Memory Type: GDDR3
Memory Bus: 256 bit x2
Bandwidth: 54.4 GB/s x2

Render Config

Shading Units: 320 x2
TMUs: 16 x2
ROPs: 16 x2
Compute Units: 4 x2
Pixel Rate: 10.6 GPixel/s x2
Texture Rate: 10.6 GTexel/s x2
Floating-point performance: 422.4 GFLOPS x2

Reference Board

TDP: 110 W

Graphics Features

DirectX: 10.1
OpenGL: 3.3
OpenCL: n/a
Shader Model: 4.1


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Our review database contains 2 reviews of the Mobility Radeon HD 3870 X2.

M88 GPU Notes