Radeon Instinct MI25 MxGPU vs Radeon R9 390X

If you are going to buy a new graphics card and are choosing between Radeon Instinct MI25 MxGPU and Radeon R9 390X, 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 Instinct MI25 MxGPU stacks up against Radeon R9 390X, check out specs charts below.
Radeon Instinct MI25 MxGPU

Main Specs

  Radeon Instinct MI25 MxGPU Radeon R9 390X
Power consumption (TDP) 300 Watt 275 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin 1 x 6-pin, 1 x 8-pin
Memory type HBM2 GDDR5
Maximum RAM amount 16 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon Instinct MI25 MxGPU has 9% more power consumption, than Radeon R9 390X.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Both cards are used in Desktops.
  • Radeon Instinct MI25 MxGPU is build with GCN 5.0 architecture, and Radeon R9 390X - with GCN.
  • Radeon Instinct MI25 MxGPU is manufactured by 14 nm process technology, and Radeon R9 390X - by 28 nm process technology.
  • Radeon R9 390X is 8 mm longer, than Radeon Instinct MI25 MxGPU.
  • Memory clock speed of Radeon Instinct MI25 MxGPU is 654 MHz higher, than Radeon R9 390X.

Game benchmarks

high / 1080p 50−55 50−55
ultra / 1080p 35−40 30−35
QHD / 1440p 27−30 24−27
4K / 2160p 16−18 14−16
low / 720p 80−85 75−80
medium / 1080p 60−65 55−60
The average gaming FPS of Radeon Instinct MI25 MxGPU in Assassin's Creed Odyssey is 6% more, than Radeon R9 390X.

Full Specs

  Radeon Instinct MI25 MxGPU Radeon R9 390X
Architecture GCN 5.0 GCN
Code name Vega 10 Grenada XT
Type Desktop Desktop
Release date 27 June 2017 16 June 2015
Pipelines 4096 2816
Core clock speed 1400 MHz
Boost Clock 1500 MHz 1050 MHz
Transistor count 12,500 million 6,200 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 384.0 184.8
Floating-point performance 5,914 gflops
Length 267 mm 275 mm
Memory bus width 2048 Bit 512 Bit
Memory clock speed 1704 MHz 1050 MHz
Memory bandwidth 436.2 GB/s 384 GB/s
Shared memory -
DirectX 12 (12_1)
Shader Model 6.4 6.3
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.1.125 +
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 684 Mh/s
Eyefinity +
PowerTune +
TrueAudio +
Mantle +
Design reference
Bridgeless CrossFire +
Number of Eyefinity displays 6
DisplayPort support +
CrossFire +
VCE +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 27.5 Mh/s
High bandwidth memory (HBM) -
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