GeForce GTX 680M SLI vs Radeon HD 6990M Crossfire

In this comparison between GeForce GTX 680M SLI and Radeon HD 6990M Crossfire 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 680M SLI will be the best choice, for others Radeon HD 6990M Crossfire will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 680M SLI and Radeon HD 6990M Crossfire are Laptop Graphics Cards

Note: GeForce GTX 680M SLI and Radeon HD 6990M Crossfire are only used in laptop graphics. They have 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 680M SLI or Radeon HD 6990M Crossfire here:

Main Specs

  GeForce GTX 680M SLI Radeon HD 6990M Crossfire
Memory type GDDR5 GDDR5
Maximum RAM amount 2x 4 GB 2x2 GB
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  • GeForce GTX 680M SLI and Radeon HD 6990M Crossfire have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GTX 680M SLI is build with Kepler architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
  • Core clock speed of GeForce GTX 680M SLI is 5 MHz higher, than Radeon HD 6990M Crossfire.
  • GeForce GTX 680M SLI is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
  • Memory clock speed of GeForce GTX 680M SLI is 2700 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 21−24
QHD / 1440p 16−18 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 40−45 40−45
GeForce GTX 680M SLI and Radeon HD 6990M Crossfire have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  GeForce GTX 680M SLI Radeon HD 6990M Crossfire
Architecture Kepler Terascale 2
Code name N13E-GTX Blackcomb XTX
Type Laptop Laptop
Release date 4 June 2012 12 July 2011
Pipelines 2688 2240
Core clock speed 720 MHz 715 MHz
Transistor count 2x1700 Million
Manufacturing process technology 28 nm 40 nm
Memory bus width 2x 256 Bit 256 Bit
Memory clock speed 3600 MHz 900 MHz
Shared memory - -
DirectX DirectX 11, Shader 5.0 DirectX 11, Shader 5.0
CUDA +
SLI options +
Laptop size large large
Optimus +
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