Iris Pro Graphics 580 vs Radeon HD 6990M Crossfire

In this comparison between Iris Pro Graphics 580 and Radeon HD 6990M Crossfire 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 580 will be the best choice, for others Radeon HD 6990M Crossfire will be their preference. Study the comparison tables below and make your choice.

Iris Pro Graphics 580 and Radeon HD 6990M Crossfire are Laptop Graphics Cards

Note: Iris Pro Graphics 580 and Radeon HD 6990M Crossfire 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 580 or Radeon HD 6990M Crossfire here:

Main Specs

  Iris Pro Graphics 580 Radeon HD 6990M Crossfire
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 2x2 GB
Display Connectors No outputs
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  • Iris Pro Graphics 580 has 62 GB more memory, than Radeon HD 6990M Crossfire.
  • Both cards are used in Laptops.
  • Iris Pro Graphics 580 is build with Gen. 9 Skylake architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
  • Core clock speed of Radeon HD 6990M Crossfire is 365 MHz higher, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is manufactured by 14 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.

Game benchmarks

high / 1080p 9−10 35−40
ultra / 1080p 5−6 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 20−22 60−65
medium / 1080p 10−12 40−45
The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 272% more, than Iris Pro Graphics 580.

Full Specs

  Iris Pro Graphics 580 Radeon HD 6990M Crossfire
Architecture Gen. 9 Skylake Terascale 2
Code name Skylake GT4e Blackcomb XTX
Type Laptop Laptop
Release date 1 September 2015 12 July 2011
Pipelines 72 2240
Core clock speed 350 MHz 715 MHz
Boost Clock 1050 MHz
Transistor count 189 million 2x1700 Million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 72.00
Memory bus width 256 Bit
Memory clock speed 900 MHz
Shared memory + -
DirectX 12 (12_1) DirectX 11, Shader 5.0
Shader Model 6.4
OpenGL 4.6
OpenCL 2.1
Vulkan 1.1.97
Laptop size large
Quick Sync +
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