Radeon R9 M375X vs Radeon R9 M390X

Find out if it is worth upgrading your current GPU setup by comparing Radeon R9 M375X and Radeon R9 M390X. 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 Radeon R9 M375X and Radeon R9 M390X. 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.

Radeon R9 M390X is a Laptop Graphics Card

Note: Radeon R9 M390X 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 R9 M390X here:

Main Specs

  Radeon R9 M375X Radeon R9 M390X
Power consumption (TDP) 100 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs No outputs
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  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R9 M375X and Radeon R9 M390X have maximum RAM of 4 GB.
  • Radeon R9 M375X is used in Desktops, and Radeon R9 M390X - in Laptops.
  • Radeon R9 M375X is build with GCN 1.0 architecture, and Radeon R9 M390X - with GCN 3.
  • Core clock speed of Radeon R9 M375X is 202 MHz higher, than Radeon R9 M390X.
  • Radeon R9 M375X and Radeon R9 M390X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 9−10 21−24
ultra / 1080p 5−6 12−14
QHD / 1440p 0−1 8−9
4K / 2160p 5−6
low / 720p 21−24 40−45
medium / 1080p 12−14 27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 116% more, than Radeon R9 M375X.

Full Specs

  Radeon R9 M375X Radeon R9 M390X
Architecture GCN 1.0 GCN 3
Code name Tropo Amethyst (XT) / Tonga
Type Desktop Laptop
Release date 5 May 2015 9 June 2015
Pipelines 640 2048
Core clock speed 925 MHz 723 MHz
Boost Clock 1015 MHz
Transistor count 1,500 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 40.60 92.54
Floating-point performance 1,299 gflops 2,961 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 1125 MHz
Memory bandwidth 72 GB/s 160.0 GB/s
Shared memory -
Shader Model 5.1 6.3
OpenGL 4.4 4.4
OpenCL Not Listed Not Listed
Vulkan +
FreeSync + +
Bus support PCIe 3.0 PCIe 3.0
Laptop size large
Eyefinity + +
HD3D + +
PowerTune + +
DualGraphics + +
ZeroCore + +
Switchable graphics + +
Mantle + +
Compute units 10
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