GeForce GTX 680MX vs Radeon 550X

When comparing GeForce GTX 680MX and Radeon 550X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GTX 680MX and Radeon 550X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 680MX is a Laptop Graphics Card

Note: GeForce GTX 680MX 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 680MX here:

Main Specs

  GeForce GTX 680MX Radeon 550X
Power consumption (TDP) 122 Watt 50 Watt
Interface PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GTX 680MX has 144% more power consumption, than Radeon 550X.
  • GeForce GTX 680MX and Radeon 550X have maximum RAM of 2 GB.
  • GeForce GTX 680MX is used in Laptops, and Radeon 550X - in Desktops.
  • GeForce GTX 680MX is build with Kepler architecture, and Radeon 550X - with GCN 4.0.
  • Core clock speed of Radeon 550X is 362 MHz higher, than GeForce GTX 680MX.
  • GeForce GTX 680MX is manufactured by 28 nm process technology, and Radeon 550X - by 14 nm process technology.
  • Memory clock speed of Radeon 550X is 4500 MHz higher, than GeForce GTX 680MX.

Game benchmarks

high / 1080p 21−24 7−8
ultra / 1080p 12−14 4−5
QHD / 1440p 7−8 0−1
4K / 2160p 5−6
low / 720p 40−45 16−18
medium / 1080p 27−30 9−10
The average gaming FPS of GeForce GTX 680MX in Assassin's Creed Odyssey is 188% more, than Radeon 550X.

Full Specs

  GeForce GTX 680MX Radeon 550X
Architecture Kepler GCN 4.0
Code name Lexa
Type Laptop Desktop
Release date 23 October 2012 27 March 2019
Pipelines 1536 512
Core clock speed 720 MHz 1082 MHz
Boost Clock 1218 MHz
Transistor count 3540 Million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 92.2 billion/sec 38.98
Length 145 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 2500 MHz 7000 MHz
Memory bandwidth 160 GB/s 112.0 GB/s
Shared memory -
DirectX 12 API 12 (12_0)
Shader Model 6.4
OpenGL 4.5 4.6
OpenCL 1.1 2.0
Vulkan 1.2.131
CUDA +
CUDA cores 1536
Bus support PCI Express 3.0
SLI options +
3D Vision +
Bitcoin / BTC (SHA256) 57 Mh/s
Laptop size large
Optimus +
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