GeForce GTX 860M SLI vs Radeon HD 6850 X2

In this comparison between GeForce GTX 860M SLI and Radeon HD 6850 X2 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 GeForce GTX 860M SLI will be the best choice, for others Radeon HD 6850 X2 will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 860M SLI is a Laptop Graphics Card

Note: GeForce GTX 860M SLI 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 GeForce GTX 860M SLI here:

Main Specs

  GeForce GTX 860M SLI Radeon HD 6850 X2
Power consumption (TDP) 120 Watt 254 Watt
Interface PCIe 2.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2x 4 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6850 X2 has 111% more power consumption, than GeForce GTX 860M SLI.
  • GeForce GTX 860M SLI and Radeon HD 6850 X2 have maximum RAM of 2 GB.
  • GeForce GTX 860M SLI is used in Laptops, and Radeon HD 6850 X2 - in Desktops.
  • GeForce GTX 860M SLI is build with Maxwell architecture, and Radeon HD 6850 X2 - with TeraScale 2.
  • Core clock speed of GeForce GTX 860M SLI is 229 MHz higher, than Radeon HD 6850 X2.
  • GeForce GTX 860M SLI is manufactured by 28 nm process technology, and Radeon HD 6850 X2 - by 40 nm process technology.
  • Memory clock speed of GeForce GTX 860M SLI is 800 MHz higher, than Radeon HD 6850 X2.

Game benchmarks

high / 1080p 21−24 12−14
ultra / 1080p 14−16 7−8
QHD / 1440p 8−9 2−3
4K / 2160p 5−6
low / 720p 40−45 27−30
medium / 1080p 27−30 16−18
The average gaming FPS of GeForce GTX 860M SLI in Assassin's Creed Odyssey is 76% more, than Radeon HD 6850 X2.

Full Specs

  GeForce GTX 860M SLI Radeon HD 6850 X2
Architecture Maxwell TeraScale 2
Code name Barts
Type Laptop Desktop
Release date 12 March 2014 19 September 2011
Pipelines 1280 960
Core clock speed 1029 MHz 800 MHz
Transistor count 2x 1870 Million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 38.40
Floating-point performance 2x 1,536.0 gflops
Memory bus width 2x 128 Bit 256 Bit
Memory clock speed 5000 MHz 4200 MHz
Memory bandwidth 134.4 GB/s
Shared memory -
DirectX DirectX 12 (FL 11_0), Shader 5.0 11.2 (11_0)
Shader Model 5.0
OpenGL 4.4
OpenCL 1.2
Vulkan N/A
CUDA +
SLI options +
Laptop size large
Optimus +
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