GeForce 920MX vs GeForce GTX 680

When comparing GeForce 920MX and GeForce GTX 680, 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 920MX and GeForce GTX 680 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 920MX is a Laptop Graphics Card

Note: GeForce 920MX 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 920MX here:

Main Specs

  GeForce 920MX GeForce GTX 680
Power consumption (TDP) 16 Watt 195 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None Two 6-pin
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB 2048 MB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GTX 680 has 1118% more power consumption, than GeForce 920MX.
  • GeForce 920MX is connected by PCIe 3.0 x8, and GeForce GTX 680 uses PCIe 3.0 x16 interface.
  • GeForce GTX 680 has 2046 GB more memory, than GeForce 920MX.
  • GeForce 920MX is used in Laptops, and GeForce GTX 680 - in Desktops.
  • GeForce 920MX is build with Maxwell architecture, and GeForce GTX 680 - with Kepler.
  • Core clock speed of GeForce GTX 680 is 41 MHz higher, than GeForce 920MX.
  • GeForce 920MX and GeForce GTX 680 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 680 is 4200 MHz higher, than GeForce 920MX.

Game benchmarks

high / 1080p 2−3 35−40
ultra / 1080p 0−1 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 12−14 60−65
medium / 1080p 3−4 40−45
The average gaming FPS of GeForce GTX 680 in Assassin's Creed Odyssey is 683% more, than GeForce 920MX.

Full Specs

  GeForce 920MX GeForce GTX 680
Architecture Maxwell Kepler
Code name N16V-GMR GK104
Type Laptop Desktop
Release date 25 March 2015 22 March 2012
Pipelines 256 1536
Core clock speed 965 MHz 1006 MHz
Boost Clock 993 MHz 1058 MHz
Transistor count 3,540 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 23.83 128.8 billion/sec
Floating-point performance 602.1 gflops 3,090.4 gflops
Length 10.0" (25.4 cm)
Memory bus width 64 Bit 256-bit GDDR5
Memory clock speed 1800 MHz 6000 MHz
Memory bandwidth 14.4 GB/s 192.2 GB/s
Shared memory - -
DirectX 12 (11_0) 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.5 4.2
OpenCL 1.2 1.2
Vulkan 1.1.126 1.1.126
CUDA + +
CUDA cores 1536
Bus support PCI Express 3.0 PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
Bitcoin / BTC (SHA256) 121 Mh/s
Optimus +
Ethereum / ETH (DaggerHashimoto) 15 Mh/s
GPU Boost 2.0
GameWorks +
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