Radeon R9 390X vs Radeon RX Vega M GH

In this comparison between Radeon R9 390X and Radeon RX Vega M GH 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 R9 390X will be the best choice, for others Radeon RX Vega M GH will be their preference. Study the comparison tables below and make your choice.

Radeon RX Vega M GH is a Laptop Graphics Card

Note: Radeon RX Vega M GH 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 RX Vega M GH here:

Main Specs

  Radeon R9 390X Radeon RX Vega M GH
Power consumption (TDP) 275 Watt 100 Watt
Interface PCIe 3.0 x16 IGP
Supplementary power connectors 1 x 6-pin, 1 x 8-pin
Memory type GDDR5 HBM2
Maximum RAM amount 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Radeon R9 390X has 175% more power consumption, than Radeon RX Vega M GH.
  • Radeon R9 390X is connected by PCIe 3.0 x16, and Radeon RX Vega M GH uses IGP interface.
  • Radeon R9 390X is used in Desktops, and Radeon RX Vega M GH - in Laptops.
  • Radeon R9 390X is build with GCN architecture, and Radeon RX Vega M GH - with Vega.
  • Radeon R9 390X is manufactured by 28 nm process technology, and Radeon RX Vega M GH - by 14 nm process technology.
  • Memory clock speed of Radeon RX Vega M GH is 550 MHz higher, than Radeon R9 390X.

Game benchmarks

high / 1080p 50−55 35−40
ultra / 1080p 30−35 21−24
QHD / 1440p 24−27 16−18
4K / 2160p 14−16 10−11
low / 720p 75−80 60−65
medium / 1080p 55−60 40−45
The average gaming FPS of Radeon R9 390X in Assassin's Creed Odyssey is 34% more, than Radeon RX Vega M GH.

Full Specs

  Radeon R9 390X Radeon RX Vega M GH
Architecture GCN Vega
Code name Grenada XT Vega Kaby Lake-G
Type Desktop Laptop
Release date 16 June 2015 7 January 2018
Pipelines 2816 1536
Core clock speed 1063 MHz
Boost Clock 1050 MHz 1190 MHz
Transistor count 6,200 million 5,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 184.8 114.2
Floating-point performance 5,914 gflops 3,656 gflops
Length 275 mm
Memory bus width 512 Bit 1024 Bit
Memory clock speed 1050 MHz 1600 MHz
Memory bandwidth 384 GB/s 204.8 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 6.3 6.4
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan + 1.2.131
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 684 Mh/s
Laptop size medium sized
Eyefinity +
PowerTune +
TrueAudio +
Mantle +
Design reference
Bridgeless CrossFire +
Number of Eyefinity displays 6
DisplayPort support +
CrossFire +
VCE +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 27.5 Mh/s
High bandwidth memory (HBM) -
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