Iris Pro Graphics P580 vs Radeon R9 M270X

Find out if it is worth upgrading your current GPU setup by comparing Iris Pro Graphics P580 and Radeon R9 M270X. 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 M270X. 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 is a Laptop Graphics Card

Note: Iris Pro Graphics P580 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 Iris Pro Graphics P580 here:

Main Specs

  Iris Pro Graphics P580 Radeon R9 M270X
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x16
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 4 GB
Display Connectors No outputs No outputs
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  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon R9 M270X uses PCIe 3.0 x16 interface.
  • Iris Pro Graphics P580 has 60 GB more memory, than Radeon R9 M270X.
  • Iris Pro Graphics P580 is used in Laptops, and Radeon R9 M270X - in Desktops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon R9 M270X - with GCN 1.0.
  • Core clock speed of Radeon R9 M270X is 375 MHz higher, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon R9 M270X - by 28 nm process technology.

Game benchmarks

high / 1080p 10−11 6−7
ultra / 1080p 6−7 4−5
QHD / 1440p 0−1 0−1
low / 720p 21−24 16−18
medium / 1080p 12−14 8−9
The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 44% more, than Radeon R9 M270X.

Full Specs

  Iris Pro Graphics P580 Radeon R9 M270X
Architecture Gen. 9 Skylake GCN 1.0
Code name Skylake GT4e Venus
Type Laptop Desktop
Release date 1 September 2015 21 March 2014
Pipelines 72 640
Core clock speed 350 MHz 725 MHz
Boost Clock 1100 MHz 775 MHz
Transistor count 189 million 1,500 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 75.60 31.00
Floating-point performance 1,536 gflops
Memory bus width 128 Bit
Memory clock speed 1125 MHz
Memory bandwidth 72 GB/s
Shared memory +
DirectX 12 (12_1)
Shader Model 6.4 5.1
OpenGL 4.6 4.4
OpenCL 2.1 Not Listed
Vulkan 1.1.97
FreeSync +
Bus support PCIe 3.0 x16
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Quick Sync +
Compute units 10
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