Radeon HD 6850 X2 vs Radeon HD 6850M

In this comparison between Radeon HD 6850 X2 and Radeon HD 6850M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 6850 X2 will be the best choice, for others Radeon HD 6850M will be their preference. Study the comparison tables below and make your choice.

Radeon HD 6850M is a Laptop Graphics Card

Note: Radeon HD 6850M 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 6850M here:

Main Specs

  Radeon HD 6850 X2 Radeon HD 6850M
Power consumption (TDP) 254 Watt 50 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR5 DDR3, GDDR5
Maximum RAM amount 2 GB 1 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 6850M.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Radeon HD 6850 X2 has 1 GB more memory, than Radeon HD 6850M.
  • Radeon HD 6850 X2 is used in Desktops, and Radeon HD 6850M - in Laptops.
  • Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon HD 6850M - with Terascale 2.
  • Core clock speed of Radeon HD 6850 X2 is 225 MHz higher, than Radeon HD 6850M.
  • Radeon HD 6850 X2 and Radeon HD 6850M are manufactured by 40 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 3400 MHz higher, than Radeon HD 6850M.

Game benchmarks

high / 1080p 12−14 2−3
ultra / 1080p 7−8 0−1
QHD / 1440p 2−3 0−1
low / 720p 27−30 12−14
medium / 1080p 16−18 3−4
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 216% more, than Radeon HD 6850M.

Full Specs

  Radeon HD 6850 X2 Radeon HD 6850M
Architecture TeraScale 2 Terascale 2
Code name Barts Granville Pro/LP
Type Desktop Laptop
Release date 19 September 2011 6 January 2011
Pipelines 960 800
Core clock speed 800 MHz 575 / 675 MHz
Transistor count 1,700 million 1,040 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 38.40 27.00
Floating-point performance 2x 1,536.0 gflops 1,080.0 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 4200 MHz 800 MHz
Memory bandwidth 134.4 GB/s 25.6 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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