GeForce GTX 860M vs Radeon R9 M390

In this comparison between GeForce GTX 860M and Radeon R9 M390 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 GTX 860M will be the best choice, for others Radeon R9 M390 will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 860M and Radeon R9 M390 are Laptop Graphics Cards

Note: GeForce GTX 860M and Radeon R9 M390 are only used in laptop graphics. They have 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 GTX 860M or Radeon R9 M390 here:

Main Specs

  GeForce GTX 860M Radeon R9 M390
Power consumption (TDP) 75 Watt
Interface MXM-B (3.0)
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs
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  • GeForce GTX 860M has 2 GB more memory, than Radeon R9 M390.
  • Both cards are used in Laptops.
  • GeForce GTX 860M is build with Maxwell architecture, and Radeon R9 M390 - with GCN.
  • GeForce GTX 860M and Radeon R9 M390 are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 16−18 18−20
ultra / 1080p 10−11 10−11
QHD / 1440p 5−6 5−6
4K / 2160p 4−5 4−5
low / 720p 30−35 35−40
medium / 1080p 21−24 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 6% more, than GeForce GTX 860M.

Full Specs

  GeForce GTX 860M Radeon R9 M390
Architecture Maxwell GCN
Code name N15P-GX Pitcairn
Type Laptop Laptop
Release date 12 March 2014 9 June 2015
Pipelines 640 1024
Core clock speed 797 MHz
Boost Clock 915 MHz
Transistor count 1,870 million 5000 Million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 43.40
Floating-point performance 1,389 gflops
Memory bus width 128 Bit 256 Bit
Memory bandwidth 80.0 GB/s
Shared memory - -
DirectX 12 (11_0)
Shader Model 5.1
OpenGL 4.5 4.4
OpenCL 1.1 Not Listed
Vulkan 1.1.126
CUDA +
FreeSync +
CUDA cores 1152 or 640
Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 163 Mh/s 242 Mh/s
Laptop size medium sized large
Standard memory configuration GDDR5
eDP 1.2 signal support Up to 3840x2160
LVDS signal support Up to 1920x1200
DisplayPort Multimode (DP++) support Up to 3840x2160
HDCP content protection +
7.1 channel HD audio on HDMI +
TrueHD and DTS-HD audio bitstreaming +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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