Iris Pro Graphics P580 vs Radeon HD 6950M

When choosing between Iris Pro Graphics P580 and Radeon HD 6950M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Iris Pro Graphics P580 and Radeon HD 6950M.

Iris Pro Graphics P580 and Radeon HD 6950M are Laptop Graphics Cards

Note: Iris Pro Graphics P580 and Radeon HD 6950M 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 HD 6950M here:

Main Specs

  Iris Pro Graphics P580 Radeon HD 6950M
Power consumption (TDP) 15 Watt 50 Watt
Interface PCIe 3.0 x1 MXM-B (3.0)
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 2 GB
Display Connectors No outputs No outputs
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  • Radeon HD 6950M has 233% more power consumption, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon HD 6950M uses MXM-B (3.0) interface.
  • Iris Pro Graphics P580 has 62 GB more memory, than Radeon HD 6950M.
  • Both cards are used in Laptops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon HD 6950M - with Terascale 2.
  • Core clock speed of Radeon HD 6950M is 230 MHz higher, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon HD 6950M - by 40 nm process technology.

Game benchmarks

high / 1080p 10−11 8−9
ultra / 1080p 6−7 5−6
QHD / 1440p 0−1 0−1
low / 720p 21−24 20−22
medium / 1080p 12−14 10−12
The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 18% more, than Radeon HD 6950M.

Full Specs

  Iris Pro Graphics P580 Radeon HD 6950M
Architecture Gen. 9 Skylake Terascale 2
Code name Skylake GT4e Blackcomb Pro
Type Laptop Laptop
Release date 1 September 2015 6 January 2011
Pipelines 72 960
Core clock speed 350 MHz 580 MHz
Boost Clock 1100 MHz
Transistor count 189 million 1,700 million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 75.60 27.84
Floating-point performance 1,113.6 gflops
Memory bus width 256 Bit
Memory clock speed 900 MHz
Memory bandwidth 115.2 GB/s
Shared memory + -
DirectX 12 (12_1) 11.2 (11_0)
Shader Model 6.4 5.0
OpenGL 4.6 4.4
OpenCL 2.1 1.2
Vulkan 1.1.97 N/A
Laptop size large
Quick Sync +
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