GeForce GTX 680M vs Radeon HD 6850 X2

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 680M and Radeon HD 6850 X2. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 680M and Radeon HD 6850 X2. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GTX 680M is a Laptop Graphics Card

Note: GeForce GTX 680M 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 680M here:

Main Specs

  GeForce GTX 680M Radeon HD 6850 X2
Power consumption (TDP) 100 Watt 254 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6850 X2 has 154% more power consumption, than GeForce GTX 680M.
  • GeForce GTX 680M is connected by MXM-B (3.0), and Radeon HD 6850 X2 uses PCIe 2.0 x16 interface.
  • GeForce GTX 680M has 2 GB more memory, than Radeon HD 6850 X2.
  • GeForce GTX 680M is used in Laptops, and Radeon HD 6850 X2 - in Desktops.
  • GeForce GTX 680M is build with Kepler architecture, and Radeon HD 6850 X2 - with TeraScale 2.
  • Core clock speed of Radeon HD 6850 X2 is 80 MHz higher, than GeForce GTX 680M.
  • GeForce GTX 680M 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 2400 MHz higher, than GeForce GTX 680M.

Game benchmarks

high / 1080p 16−18 12−14
ultra / 1080p 9−10 7−8
QHD / 1440p 4−5 2−3
4K / 2160p 4−5
low / 720p 30−35 27−30
medium / 1080p 20−22 16−18
The average gaming FPS of GeForce GTX 680M in Assassin's Creed Odyssey is 23% more, than Radeon HD 6850 X2.

Full Specs

  GeForce GTX 680M Radeon HD 6850 X2
Architecture Kepler TeraScale 2
Code name N13E-GTX Barts
Type Laptop Desktop
Release date 4 June 2012 19 September 2011
Pipelines 1344 960
Core clock speed 720 MHz 800 MHz
Boost Clock 758 MHz
Transistor count 3,540 million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 80.6 billion/sec 38.40
Floating-point performance 2,038 gflops 2x 1,536.0 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 1800 MHz 4200 MHz
Memory bandwidth 115.2 GB/s 134.4 GB/s
Shared memory -
DirectX 12 API 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.1 1.2
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 1344
Bus support PCI Express 3.0
SLI options +
Bitcoin / BTC (SHA256) 100 Mh/s
Laptop size large
Optimus +
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