Iris Plus Graphics 655 vs Radeon HD 7970M Crossfire

In this comparison between Iris Plus Graphics 655 and Radeon HD 7970M 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 Plus Graphics 655 will be the best choice, for others Radeon HD 7970M Crossfire will be their preference. Study the comparison tables below and make your choice.

Iris Plus Graphics 655 and Radeon HD 7970M Crossfire are Laptop Graphics Cards

Note: Iris Plus Graphics 655 and Radeon HD 7970M 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 Plus Graphics 655 or Radeon HD 7970M Crossfire here:

Main Specs

  Iris Plus Graphics 655 Radeon HD 7970M Crossfire
Power consumption (TDP) 15 Watt 200 Watt
Interface PCIe 3.0 x1
Memory type DDR3/DDR4 GDDR5
Display Connectors No outputs
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  • Radeon HD 7970M Crossfire has 1233% more power consumption, than Iris Plus Graphics 655.
  • Both cards are used in Laptops.
  • Iris Plus Graphics 655 is build with Gen. 9.5 Kaby Lake architecture, and Radeon HD 7970M Crossfire - with GCN.
  • Core clock speed of Radeon HD 7970M Crossfire is 550 MHz higher, than Iris Plus Graphics 655.
  • Iris Plus Graphics 655 is manufactured by 14 nm process technology, and Radeon HD 7970M Crossfire - by 28 nm process technology.

Game benchmarks

high / 1080p 12−14 35−40
ultra / 1080p 7−8 21−24
QHD / 1440p 2−3 16−18
4K / 2160p 10−11
low / 720p 27−30 60−65
medium / 1080p 16−18 40−45
The average gaming FPS of Radeon HD 7970M Crossfire in Assassin's Creed Odyssey is 176% more, than Iris Plus Graphics 655.

Full Specs

  Iris Plus Graphics 655 Radeon HD 7970M Crossfire
Architecture Gen. 9.5 Kaby Lake GCN
Code name Kaby Lake GT3e Wimbledon XT
Type Laptop Laptop
Release date 1 September 2017 1 May 2012
Pipelines 48 2560
Core clock speed 300 MHz 850 MHz
Boost Clock 1200 MHz
Transistor count 189 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 50.40
Memory bus width 2x 256 Bit
Memory clock speed 4800 MHz
Shared memory + -
DirectX 12 (12_1) DirectX 11.1, Shader 5.0
Shader Model 6.4
OpenGL 4.6
OpenCL 2.1
Vulkan 1.1.103
Laptop size large
Quick Sync +
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