Radeon Pro 580X vs Radeon R9 M390X

In this comparison between Radeon Pro 580X and Radeon R9 M390X 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 Radeon Pro 580X will be the best choice, for others Radeon R9 M390X will be their preference. Study the comparison tables below and make your choice.

Radeon R9 M390X is a Laptop Graphics Card

Note: Radeon R9 M390X 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 Radeon R9 M390X here:

Main Specs

  Radeon Pro 580X Radeon R9 M390X
Power consumption (TDP) 150 Watt 100 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 8 GB 4 GB
Display Connectors No outputs No outputs
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  • Radeon Pro 580X has 50% more power consumption, than Radeon R9 M390X.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon Pro 580X has 4 GB more memory, than Radeon R9 M390X.
  • Radeon Pro 580X is used in Desktops, and Radeon R9 M390X - in Laptops.
  • Radeon Pro 580X is build with GCN 4.0 architecture, and Radeon R9 M390X - with GCN 3.
  • Core clock speed of Radeon Pro 580X is 377 MHz higher, than Radeon R9 M390X.
  • Radeon Pro 580X is manufactured by 14 nm process technology, and Radeon R9 M390X - by 28 nm process technology.

Game benchmarks

high / 1080p 35−40 21−24
ultra / 1080p 24−27 12−14
QHD / 1440p 18−20 8−9
4K / 2160p 10−12 5−6
low / 720p 60−65 40−45
medium / 1080p 45−50 27−30
The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 65% more, than Radeon R9 M390X.

Full Specs

  Radeon Pro 580X Radeon R9 M390X
Architecture GCN 4.0 GCN 3
Code name Polaris 20 Amethyst (XT) / Tonga
Type Workstation Laptop
Release date 18 March 2019 9 June 2015
Pipelines 2304 2048
Core clock speed 1100 MHz 723 MHz
Boost Clock 1200 MHz
Transistor count 5,700 million 5,000 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 172.8 92.54
Floating-point performance 2,961 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 6780 MHz
Memory bandwidth 217.0 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (12_0)
Shader Model 6.4 6.3
OpenGL 4.6 4.4
OpenCL 2.0 Not Listed
Vulkan 1.2.131 +
FreeSync +
Bus support PCIe 3.0
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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