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ColorFire HD 6850 X2 XStorm

ColorFire HD 6850 X2 XStorm Image AMD Barts Image

Graphics Processor

GPU Name: Barts
GPU Variant: Barts PRO
Process Size: 40 nm
Transistors: 1,700 million
Die Size: 255 mm²

Graphics Card

Released: Sep 19th, 2011
Production Status: End-of-life
Bus Interface: PCIe 2.0 x16

Clock Speeds

GPU Clock: 800 MHz
Memory Clock: 1050 MHz
4200 MHz effective


Memory Size: 2048 MB x2
Memory Type: GDDR5
Memory Bus: 256 bit x2
Bandwidth: 134 GB/s x2

Render Config

Shading Units: 960 x2
TMUs: 48 x2
ROPs: 32 x2
Compute Units: 12 x2
Pixel Rate: 25.6 GPixel/s x2
Texture Rate: 38.4 GTexel/s x2
Floating-point performance: 1,536 GFLOPS x2

Board Design

Slot Width: Dual-slot
TDP: 254 W
Outputs: 2x DVI
1x DisplayPort
Power Connectors: 2x 8-pin

Graphics Features

DirectX: 11.0
OpenGL: 4.3
OpenCL: 1.2
Shader Model: 5.0


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Our review database contains 105 reviews of the HD 6850 X2 XStorm.

Other retail boards based on this design

Name GPU Clock Memory Clock Other Changes
ColorFire HD 6850 X2 XStorm 800 MHz 1050 MHz