Iris Pro Graphics P580 vs Radeon RX 460 mobile

If you are going to buy a new graphics card and are choosing between Iris Pro Graphics P580 and Radeon RX 460 mobile, 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 Iris Pro Graphics P580 stacks up against Radeon RX 460 mobile, check out specs charts below.

Iris Pro Graphics P580 and Radeon RX 460 mobile are Laptop Graphics Cards

Note: Iris Pro Graphics P580 and Radeon RX 460 mobile 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 RX 460 mobile here:

Main Specs

  Iris Pro Graphics P580 Radeon RX 460 mobile
Power consumption (TDP) 15 Watt 55 Watt
Interface PCIe 3.0 x1 MXM-B (3.0)
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 4 GB
Display Connectors No outputs No outputs
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  • Radeon RX 460 mobile has 266% more power consumption, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon RX 460 mobile uses MXM-B (3.0) interface.
  • Iris Pro Graphics P580 has 60 GB more memory, than Radeon RX 460 mobile.
  • Both cards are used in Laptops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon RX 460 mobile - with Polaris.
  • Iris Pro Graphics P580 and Radeon RX 460 mobile are manufactured by 14 nm process technology.

Game benchmarks

high / 1080p 10−11 16−18
ultra / 1080p 6−7 9−10
QHD / 1440p 0−1 3−4
low / 720p 21−24 30−35
medium / 1080p 12−14 21−24
The average gaming FPS of Radeon RX 460 mobile in Assassin's Creed Odyssey is 53% more, than Iris Pro Graphics P580.

Full Specs

  Iris Pro Graphics P580 Radeon RX 460 mobile
Architecture Gen. 9 Skylake Polaris
Code name Skylake GT4e Polaris 11 / Baffin XT
Type Laptop Laptop
Release date 1 September 2015 8 August 2016
Pipelines 72 896
Core clock speed 350 MHz
Boost Clock 1100 MHz 1180 MHz
Transistor count 189 million 3,000 million
Manufacturing process technology 14 nm 14 nm
Texture fill rate 75.60 66.08
Floating-point performance 2,115 gflops
Memory bus width 128 Bit
Memory clock speed 6000 MHz
Memory bandwidth 80 GB/s
Shared memory + -
DirectX 12 (12_1) 12 (12_0)
Shader Model 6.4 6.4
OpenGL 4.6 4.6
OpenCL 2.1 2.0
Vulkan 1.1.97 1.2.131
FreeSync +
Laptop size large
Quick Sync +
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