GeForce 920MX vs Radeon Pro 580X

In this comparison between GeForce 920MX and Radeon Pro 580X 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 920MX will be the best choice, for others Radeon Pro 580X will be their preference. Study the comparison tables below and make your choice.

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 Radeon Pro 580X
Power consumption (TDP) 16 Watt 150 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None None
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB 8 GB
Display Connectors No outputs No outputs
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  • Radeon Pro 580X has 837% more power consumption, than GeForce 920MX.
  • GeForce 920MX is connected by PCIe 3.0 x8, and Radeon Pro 580X uses PCIe 3.0 x16 interface.
  • Radeon Pro 580X has 6 GB more memory, than GeForce 920MX.
  • GeForce 920MX is used in Laptops, and Radeon Pro 580X - in Desktops.
  • GeForce 920MX is build with Maxwell architecture, and Radeon Pro 580X - with GCN 4.0.
  • Core clock speed of Radeon Pro 580X is 135 MHz higher, than GeForce 920MX.
  • GeForce 920MX is manufactured by 28 nm process technology, and Radeon Pro 580X - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 580X is 4980 MHz higher, than GeForce 920MX.

Game benchmarks

high / 1080p 2−3 35−40
ultra / 1080p 0−1 24−27
QHD / 1440p 0−1 18−20
4K / 2160p 10−12
low / 720p 12−14 60−65
medium / 1080p 3−4 45−50
The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 716% more, than GeForce 920MX.

Full Specs

  GeForce 920MX Radeon Pro 580X
Architecture Maxwell GCN 4.0
Code name N16V-GMR Polaris 20
Type Laptop Workstation
Release date 25 March 2015 18 March 2019
Pipelines 256 2304
Core clock speed 965 MHz 1100 MHz
Boost Clock 993 MHz 1200 MHz
Transistor count 5,700 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 23.83 172.8
Floating-point performance 602.1 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz 6780 MHz
Memory bandwidth 14.4 GB/s 217.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.5 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
Bus support PCI Express 3.0
Optimus +
GPU Boost 2.0
GameWorks +
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