Iris Pro Graphics P580 vs Radeon HD 6950

In this comparison between Iris Pro Graphics P580 and Radeon HD 6950 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 HD 6950 will be their preference. Study the comparison tables below and make your choice.

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 HD 6950
Power consumption (TDP) 15 Watt 500 Watt
Interface PCIe 3.0 x1 PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 2 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6950 has 3233% more power consumption, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon HD 6950 uses PCIe 2.0 x16 interface.
  • Iris Pro Graphics P580 has 62 GB more memory, than Radeon HD 6950.
  • Iris Pro Graphics P580 is used in Laptops, and Radeon HD 6950 - in Desktops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon HD 6950 - with TeraScale 3.
  • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon HD 6950 - by 40 nm process technology.

Game benchmarks

high / 1080p 10−11 14−16
ultra / 1080p 6−7 8−9
QHD / 1440p 0−1 3−4
low / 720p 21−24 27−30
medium / 1080p 12−14 16−18
The average gaming FPS of Radeon HD 6950 in Assassin's Creed Odyssey is 30% more, than Iris Pro Graphics P580.

Full Specs

  Iris Pro Graphics P580 Radeon HD 6950
Architecture Gen. 9 Skylake TeraScale 3
Code name Skylake GT4e Cayman
Type Laptop Desktop
Release date 1 September 2015 14 December 2010
Pipelines 72 1408
Core clock speed 350 MHz
Boost Clock 1100 MHz 800 MHz
Transistor count 189 million 2,640 million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 75.60 70.40
Floating-point performance 2,252.8 gflops
Length 267 mm
Memory bus width 256 Bit
Memory clock speed 1250 MHz
Shared memory +
DirectX 12 (12_1)
Shader Model 6.4 5.0
OpenGL 4.6 4.4
OpenCL 2.1 1.2
Vulkan 1.1.97
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 244 Mh/s
Eyefinity +
Design reference
CrossFire +
Quick Sync +
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