Iris Pro Graphics P580 vs Radeon RX 640

In this comparison between Iris Pro Graphics P580 and Radeon RX 640 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 RX 640 will be their preference. Study the comparison tables below and make your choice.

Iris Pro Graphics P580 and Radeon RX 640 are Laptop Graphics Cards

Note: Iris Pro Graphics P580 and Radeon RX 640 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 640 here:

Main Specs

  Iris Pro Graphics P580 Radeon RX 640
Power consumption (TDP) 15 Watt 50 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX 640 has 233% more power consumption, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon RX 640 uses PCIe 3.0 x8 interface.
  • Iris Pro Graphics P580 has 60 GB more memory, than Radeon RX 640.
  • Both cards are used in Laptops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 868 MHz higher, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 and Radeon RX 640 are manufactured by 14 nm process technology.

Game benchmarks

high / 1080p 10−11 5−6
ultra / 1080p 6−7 3−4
QHD / 1440p 0−1 2−3
low / 720p 21−24 16−18
medium / 1080p 12−14 7−8
The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 62% more, than Radeon RX 640.

Full Specs

  Iris Pro Graphics P580 Radeon RX 640
Architecture Gen. 9 Skylake Polaris
Code name Skylake GT4e Polaris 12
Type Laptop Laptop
Release date 1 September 2015 12 August 2019
Pipelines 72 640
Core clock speed 350 MHz 1218 MHz
Boost Clock 1100 MHz 1218 MHz
Transistor count 189 million 2,200 million
Manufacturing process technology 14 nm 14 nm
Texture fill rate 75.60 38.98
Memory bus width 64 Bit
Memory clock speed 6000 MHz
Memory bandwidth 112.0 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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