Iris Pro Graphics P580 vs Radeon R9 M395X

Find out if it is worth upgrading your current GPU setup by comparing Iris Pro Graphics P580 and Radeon R9 M395X. 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 Iris Pro Graphics P580 and Radeon R9 M395X. 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.

Iris Pro Graphics P580 and Radeon R9 M395X are Laptop Graphics Cards

Note: Iris Pro Graphics P580 and Radeon R9 M395X 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 M395X here:

Main Specs

  Iris Pro Graphics P580 Radeon R9 M395X
Power consumption (TDP) 15 Watt 250 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 4 GB
Display Connectors No outputs No outputs
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  • Radeon R9 M395X has 1566% more power consumption, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon R9 M395X uses PCIe 3.0 x16 interface.
  • Iris Pro Graphics P580 has 60 GB more memory, than Radeon R9 M395X.
  • Both cards are used in Laptops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon R9 M395X - with GCN 3.
  • Core clock speed of Radeon R9 M395X is 373 MHz higher, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon R9 M395X - by 28 nm process technology.

Game benchmarks

high / 1080p 10−11 24−27
ultra / 1080p 6−7 14−16
QHD / 1440p 0−1 9−10
4K / 2160p 6−7
low / 720p 21−24 45−50
medium / 1080p 12−14 30−35
The average gaming FPS of Radeon R9 M395X in Assassin's Creed Odyssey is 130% more, than Iris Pro Graphics P580.

Full Specs

  Iris Pro Graphics P580 Radeon R9 M395X
Architecture Gen. 9 Skylake GCN 3
Code name Skylake GT4e Amethyst XT
Type Laptop Laptop
Release date 1 September 2015 16 October 2014
Pipelines 72 2048
Core clock speed 350 MHz 723 MHz
Boost Clock 1100 MHz
Transistor count 189 million 5,000 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 75.60 92.54
Floating-point performance 2,961 gflops
Memory bus width 256 Bit
Memory clock speed 1250 MHz
Memory bandwidth 160.0 GB/s
Shared memory + -
DirectX 12 (12_1)
Shader Model 6.4 6.3
OpenGL 4.6 4.4
OpenCL 2.1 Not Listed
Vulkan 1.1.97
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 413 Mh/s
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
Quick Sync +
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