Iris Pro Graphics P580 vs Radeon R9 M390

In this comparison between Iris Pro Graphics P580 and Radeon R9 M390 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Iris Pro Graphics P580 will be the best choice, for others Radeon R9 M390 will be their preference. Study the comparison tables below and make your choice.

Iris Pro Graphics P580 and Radeon R9 M390 are Laptop Graphics Cards

Note: Iris Pro Graphics P580 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 Iris Pro Graphics P580 or Radeon R9 M390 here:

Main Specs

  Iris Pro Graphics P580 Radeon R9 M390
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 2 GB
Display Connectors No outputs
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  • Iris Pro Graphics P580 has 62 GB more memory, than Radeon R9 M390.
  • Both cards are used in Laptops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon R9 M390 - with GCN.
  • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon R9 M390 - by 28 nm process technology.

Game benchmarks

high / 1080p 10−11 18−20
ultra / 1080p 6−7 10−11
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 21−24 35−40
medium / 1080p 12−14 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 69% more, than Iris Pro Graphics P580.

Full Specs

  Iris Pro Graphics P580 Radeon R9 M390
Architecture Gen. 9 Skylake GCN
Code name Skylake GT4e Pitcairn
Type Laptop Laptop
Release date 1 September 2015 9 June 2015
Pipelines 72 1024
Core clock speed 350 MHz
Boost Clock 1100 MHz
Transistor count 189 million 5000 Million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 75.60
Memory bus width 256 Bit
Shared memory + -
DirectX 12 (12_1)
Shader Model 6.4
OpenGL 4.6 4.4
OpenCL 2.1 Not Listed
Vulkan 1.1.97
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 242 Mh/s
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Quick Sync +
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