Iris Pro Graphics 580 vs Radeon HD 6990M

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

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

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

Main Specs

  Iris Pro Graphics 580 Radeon HD 6990M
Power consumption (TDP) 15 Watt 100 Watt
Interface PCIe 3.0 x1 MXM-B (3.0)
Supplementary power connectors None
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 6990M has 566% more power consumption, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is connected by PCIe 3.0 x1, and Radeon HD 6990M uses MXM-B (3.0) interface.
  • Iris Pro Graphics 580 has 62 GB more memory, than Radeon HD 6990M.
  • Both cards are used in Laptops.
  • Iris Pro Graphics 580 is build with Gen. 9 Skylake architecture, and Radeon HD 6990M - with Terascale 2.
  • Core clock speed of Radeon HD 6990M is 365 MHz higher, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is manufactured by 14 nm process technology, and Radeon HD 6990M - by 40 nm process technology.

Game benchmarks

high / 1080p 9−10 14−16
ultra / 1080p 5−6 8−9
QHD / 1440p 0−1 3−4
low / 720p 20−22 30−33
medium / 1080p 10−12 16−18
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 63% more, than Iris Pro Graphics 580.

Full Specs

  Iris Pro Graphics 580 Radeon HD 6990M
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 1120
Core clock speed 350 MHz 715 MHz
Boost Clock 1050 MHz
Transistor count 189 million 1,700 million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 72.00 40.04
Floating-point performance 1,601.6 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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