Radeon HD 6850 X2 vs Radeon HD 6950M

When choosing between Radeon HD 6850 X2 and Radeon HD 6950M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 6850 X2 and Radeon HD 6950M.

Radeon HD 6950M is a Laptop Graphics Card

Note: Radeon HD 6950M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon HD 6950M here:

Main Specs

  Radeon HD 6850 X2 Radeon HD 6950M
Power consumption (TDP) 254 Watt 50 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Radeon HD 6850 X2 has 408% more power consumption, than Radeon HD 6950M.
  • Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon HD 6950M uses MXM-B (3.0) interface.
  • Radeon HD 6850 X2 and Radeon HD 6950M have maximum RAM of 2 GB.
  • Radeon HD 6850 X2 is used in Desktops, and Radeon HD 6950M - in Laptops.
  • Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon HD 6950M - with Terascale 2.
  • Core clock speed of Radeon HD 6850 X2 is 220 MHz higher, than Radeon HD 6950M.
  • Radeon HD 6850 X2 and Radeon HD 6950M are manufactured by 40 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 3300 MHz higher, than Radeon HD 6950M.

Game benchmarks

high / 1080p 12−14 8−9
ultra / 1080p 7−8 5−6
QHD / 1440p 2−3 0−1
low / 720p 27−30 20−22
medium / 1080p 16−18 10−12
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 45% more, than Radeon HD 6950M.

Full Specs

  Radeon HD 6850 X2 Radeon HD 6950M
Architecture TeraScale 2 Terascale 2
Code name Barts Blackcomb Pro
Type Desktop Laptop
Release date 19 September 2011 6 January 2011
Pipelines 960 960
Core clock speed 800 MHz 580 MHz
Transistor count 1,700 million 1,700 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 38.40 27.84
Floating-point performance 2x 1,536.0 gflops 1,113.6 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 4200 MHz 900 MHz
Memory bandwidth 134.4 GB/s 115.2 GB/s
Shared memory -
DirectX 11.2 (11_0) 11.2 (11_0)
Shader Model 5.0 5.0
OpenGL 4.4 4.4
OpenCL 1.2 1.2
Vulkan N/A N/A
Laptop size large
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