Radeon R8 M365DX vs Radeon R9 M390X

When choosing between Radeon R8 M365DX and Radeon R9 M390X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon R8 M365DX and Radeon R9 M390X.

Radeon R8 M365DX and Radeon R9 M390X are Laptop Graphics Cards

Note: Radeon R8 M365DX and Radeon R9 M390X 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 Radeon R8 M365DX or Radeon R9 M390X here:

Main Specs

  Radeon R8 M365DX Radeon R9 M390X
Power consumption (TDP) 100 Watt
Interface IGP PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB
Display Connectors No outputs No outputs
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  • Radeon R8 M365DX is connected by IGP, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
  • Both cards are used in Laptops.
  • Radeon R8 M365DX is build with GCN architecture, and Radeon R9 M390X - with GCN 3.
  • Core clock speed of Radeon R9 M390X is 3 MHz higher, than Radeon R8 M365DX.
  • Radeon R8 M365DX and Radeon R9 M390X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 21−24
ultra / 1080p 12−14
QHD / 1440p 0−1 8−9
4K / 2160p 5−6
low / 720p 1−2 40−45
medium / 1080p 0−1 27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 4100% more, than Radeon R8 M365DX.

Full Specs

  Radeon R8 M365DX Radeon R9 M390X
Architecture GCN GCN 3
Code name Meso Amethyst (XT) / Tonga
Type Laptop Laptop
Release date 3 June 2015 9 June 2015
Pipelines 768 2048
Core clock speed 720 / 1125 MHz 723 MHz
Boost Clock 1125 MHz
Transistor count 1,550 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 27.00 92.54
Floating-point performance 2,961 gflops
Memory bus width 128 + 64 Bit 256 Bit
Memory clock speed 800 / 1000 MHz
Memory bandwidth 160.0 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 6.0 6.3
OpenGL 4.6 4.4
OpenCL 2.0 Not Listed
Vulkan 1.2.131 +
FreeSync +
Bus support PCIe 3.0
Laptop size medium sized large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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