GeForce GTX 680MX vs Radeon RX 550X

In this comparison between GeForce GTX 680MX and Radeon RX 550X 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 680MX will be the best choice, for others Radeon RX 550X will be their preference. Study the comparison tables below and make your choice.

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 RX 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 4 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
  Check Price
  • GeForce GTX 680MX has 144% more power consumption, than Radeon RX 550X.
  • Radeon RX 550X has 2 GB more memory, than GeForce GTX 680MX.
  • GeForce GTX 680MX is used in Laptops, and Radeon RX 550X - in Desktops.
  • GeForce GTX 680MX is build with Kepler architecture, and Radeon RX 550X - with GCN 4.0.
  • Core clock speed of Radeon RX 550X is 380 MHz higher, than GeForce GTX 680MX.
  • GeForce GTX 680MX is manufactured by 28 nm process technology, and Radeon RX 550X - by 14 nm process technology.
  • Memory clock speed of Radeon RX 550X is 3500 MHz higher, than GeForce GTX 680MX.

Game benchmarks

high / 1080p 21−24 10−11
ultra / 1080p 12−14 6−7
QHD / 1440p 7−8 0−1
4K / 2160p 5−6
low / 720p 40−45 21−24
medium / 1080p 27−30 12−14
The average gaming FPS of GeForce GTX 680MX in Assassin's Creed Odyssey is 100% more, than Radeon RX 550X.

Full Specs

  GeForce GTX 680MX Radeon RX 550X
Architecture Kepler GCN 4.0
Code name Lexa
Type Laptop Desktop
Release date 23 October 2012 16 December 2018
Pipelines 1536 512
Core clock speed 720 MHz 1100 MHz
Boost Clock 1183 MHz
Transistor count 3540 Million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 92.2 billion/sec 37.86
Floating-point performance 1,211 gflops
Length 145 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 2500 MHz 6000 MHz
Memory bandwidth 160 GB/s 96 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 +
  Check Price