GeForce GT 650M SLI vs Radeon HD 6850 X2

In this comparison between GeForce GT 650M 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 GT 650M 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 GT 650M SLI is a Laptop Graphics Card

Note: GeForce GT 650M 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 GT 650M SLI here:

Main Specs

  GeForce GT 650M SLI Radeon HD 6850 X2
Power consumption (TDP) 254 Watt
Interface PCIe 2.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2x2 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GT 650M SLI and Radeon HD 6850 X2 have maximum RAM of 2 GB.
  • GeForce GT 650M SLI is used in Laptops, and Radeon HD 6850 X2 - in Desktops.
  • GeForce GT 650M SLI is build with Kepler architecture, and Radeon HD 6850 X2 - with TeraScale 2.
  • Core clock speed of Radeon HD 6850 X2 is 10 MHz higher, than GeForce GT 650M SLI.
  • GeForce GT 650M SLI is manufactured by 28 nm process technology, and Radeon HD 6850 X2 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 200 MHz higher, than GeForce GT 650M SLI.

Game benchmarks

high / 1080p 12−14 12−14
ultra / 1080p 7−8 7−8
QHD / 1440p 2−3 2−3
low / 720p 24−27 27−30
medium / 1080p 14−16 16−18
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 8% more, than GeForce GT 650M SLI.

Full Specs

  GeForce GT 650M SLI Radeon HD 6850 X2
Architecture Kepler TeraScale 2
Code name N13E-GE Barts
Type Laptop Desktop
Release date 22 March 2012 19 September 2011
Pipelines 768 960
Core clock speed 790 MHz 800 MHz
Boost Clock 835 MHz
Transistor count 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 4000 MHz 4200 MHz
Memory bandwidth 134.4 GB/s
Shared memory -
DirectX DirectX 11, Shader 5.0 11.2 (11_0)
Shader Model 5.0
OpenGL 4.4
OpenCL 1.2
Vulkan N/A
CUDA +
Laptop size medium sized
Optimus +
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