Radeon R7 M365X vs Radeon R9 M390X

If you are going to buy a new graphics card and are choosing between Radeon R7 M365X and Radeon R9 M390X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon R7 M365X stacks up against Radeon R9 M390X, check out specs charts below.

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 R7 M365X Radeon R9 M390X
Power consumption (TDP) 100 Watt
Interface PCIe 3.0 x8 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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  • Radeon R7 M365X is connected by PCIe 3.0 x8, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
  • Radeon R7 M365X and Radeon R9 M390X have maximum RAM of 4 GB.
  • Radeon R7 M365X is used in Desktops, and Radeon R9 M390X - in Laptops.
  • Radeon R7 M365X is build with GCN 1.0 architecture, and Radeon R9 M390X - with GCN 3.
  • Core clock speed of Radeon R7 M365X is 177 MHz higher, than Radeon R9 M390X.
  • Radeon R7 M365X and Radeon R9 M390X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 21−24
ultra / 1080p 0−1 12−14
QHD / 1440p 0−1 8−9
4K / 2160p 5−6
low / 720p 10−12 40−45
medium / 1080p 2−3 27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 483% more, than Radeon R7 M365X.

Full Specs

  Radeon R7 M365X Radeon R9 M390X
Architecture GCN 1.0 GCN 3
Code name Litho Amethyst (XT) / Tonga
Type Desktop Laptop
Release date 5 May 2015 9 June 2015
Pipelines 384 2048
Core clock speed 900 MHz 723 MHz
Boost Clock 825 MHz
Transistor count 690 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 23.04 92.54
Floating-point performance 737.3 gflops 2,961 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 1000 MHz
Memory bandwidth 64 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 6
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