GeForce 845M vs Radeon R9 M390

Find out if it is worth upgrading your current GPU setup by comparing GeForce 845M 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 845M 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 845M and Radeon R9 M390 are Laptop Graphics Cards

Note: GeForce 845M 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 845M or Radeon R9 M390 here:

Main Specs

  GeForce 845M Radeon R9 M390
Power consumption (TDP) 45 Watt
Interface PCIe 3.0 x8
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs
  Check Price Check Price
  • GeForce 845M and Radeon R9 M390 have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce 845M is build with Maxwell architecture, and Radeon R9 M390 - with GCN.
  • GeForce 845M and Radeon R9 M390 are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 3−4 18−20
ultra / 1080p 1−2 10−11
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 14−16 35−40
medium / 1080p 6−7 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 266% more, than GeForce 845M.

Full Specs

  GeForce 845M Radeon R9 M390
Architecture Maxwell GCN
Code name GM108 Pitcairn
Type Laptop Laptop
Release date 12 March 2014 9 June 2015
Pipelines 384 1024
Core clock speed 1071 MHz
Boost Clock 1150 MHz
Transistor count 1,870 million 5000 Million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 37.63
Floating-point performance 883.7 gflops
Memory bus width 64/128 Bit 256 Bit
Memory clock speed 2000 - 5000 MHz
Memory bandwidth 40.1 GB/s
Shared memory - -
DirectX 12 (11_0)
Shader Model 5.1
OpenGL 4.6 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126
CUDA +
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 76 Mh/s 242 Mh/s
Laptop size medium sized large
Optimus +
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
  Check Price Check Price