Radeon R9 390X vs Radeon RX Vega M GL 870

When comparing Radeon R9 390X and Radeon RX Vega M GL 870, 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 Radeon R9 390X and Radeon RX Vega M GL 870 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon RX Vega M GL 870 is a Laptop Graphics Card

Note: Radeon RX Vega M GL 870 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 GL 870 here:

Main Specs

  Radeon R9 390X Radeon RX Vega M GL 870
Power consumption (TDP) 275 Watt
Interface PCIe 3.0 x16
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
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  • Radeon R9 390X is used in Desktops, and Radeon RX Vega M GL 870 - in Laptops.
  • Radeon R9 390X is build with GCN architecture, and Radeon RX Vega M GL 870 - with Vega.
  • Radeon R9 390X is manufactured by 28 nm process technology, and Radeon RX Vega M GL 870 - by 14 nm process technology.

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 GL 870.

Full Specs

  Radeon R9 390X Radeon RX Vega M GL 870
Architecture GCN Vega
Code name Grenada XT Vega Kaby Lake-G
Type Desktop Laptop
Release date 16 June 2015 7 January 2018
Pipelines 2816 1280
Core clock speed 931 MHz
Boost Clock 1050 MHz 1011 MHz
Transistor count 6,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 184.8
Floating-point performance 5,914 gflops
Length 275 mm
Memory bus width 512 Bit
Memory clock speed 1050 MHz
Memory bandwidth 384 GB/s
Shared memory - -
DirectX DirectX 12_1
Shader Model 6.3
OpenGL 4.6
OpenCL 2.0
Vulkan +
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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