GeForce GTX 850M vs Radeon R9 M390

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 850M and Radeon R9 M390. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 850M and Radeon R9 M390. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GTX 850M and Radeon R9 M390 are Laptop Graphics Cards

Note: GeForce GTX 850M 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 850M or Radeon R9 M390 here:

Main Specs

  GeForce GTX 850M Radeon R9 M390
Power consumption (TDP) 45 Watt
Interface PCIe 3.0 x16
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs
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  • GeForce GTX 850M has 2 GB more memory, than Radeon R9 M390.
  • Both cards are used in Laptops.
  • GeForce GTX 850M is build with Maxwell architecture, and Radeon R9 M390 - with GCN.
  • GeForce GTX 850M and Radeon R9 M390 are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 12−14 18−20
ultra / 1080p 8−9 10−11
QHD / 1440p 2−3 5−6
4K / 2160p 4−5
low / 720p 27−30 35−40
medium / 1080p 16−18 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 46% more, than GeForce GTX 850M.

Full Specs

  GeForce GTX 850M Radeon R9 M390
Architecture Maxwell GCN
Code name N15P-GT Pitcairn
Type Laptop Laptop
Release date 12 March 2014 9 June 2015
Pipelines 640 1024
Transistor count 1,870 million 5000 Million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 36.08
Floating-point performance 1,155 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 640
Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 153 Mh/s 242 Mh/s
Laptop size medium sized large
Standard memory configuration DDR3 or 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 +
Ethereum / ETH (DaggerHashimoto) 1.8 Mh/s
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