Iris Pro Graphics 580 vs Radeon HD 7870M

In this comparison between Iris Pro Graphics 580 and Radeon HD 7870M 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 7870M will be their preference. Study the comparison tables below and make your choice.

Iris Pro Graphics 580 and Radeon HD 7870M are Laptop Graphics Cards

Note: Iris Pro Graphics 580 and Radeon HD 7870M 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 7870M here:

Main Specs

  Iris Pro Graphics 580 Radeon HD 7870M
Power consumption (TDP) 15 Watt 45 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x16
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 2 GB
Display Connectors No outputs No outputs
  Check Price Check Price
  • Radeon HD 7870M has 200% more power consumption, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is connected by PCIe 3.0 x1, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
  • Iris Pro Graphics 580 has 62 GB more memory, than Radeon HD 7870M.
  • Both cards are used in Laptops.
  • Iris Pro Graphics 580 is build with Gen. 9 Skylake architecture, and Radeon HD 7870M - with GCN.
  • Core clock speed of Radeon HD 7870M is 450 MHz higher, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is manufactured by 14 nm process technology, and Radeon HD 7870M - by 28 nm process technology.

Game benchmarks

high / 1080p 9−10 6−7
ultra / 1080p 5−6 4−5
QHD / 1440p 0−1 0−1
low / 720p 20−22 16−18
medium / 1080p 10−12 8−9
The average gaming FPS of Iris Pro Graphics 580 in Assassin's Creed Odyssey is 22% more, than Radeon HD 7870M.

Full Specs

  Iris Pro Graphics 580 Radeon HD 7870M
Architecture Gen. 9 Skylake GCN
Code name Skylake GT4e Heathrow XT
Type Laptop Laptop
Release date 1 September 2015 24 April 2012
Pipelines 72 640
Core clock speed 350 MHz 800 MHz
Boost Clock 1050 MHz
Transistor count 189 million 1,500 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 72.00 32.00
Floating-point performance 1,024 gflops
Memory bus width 128 Bit
Memory clock speed 4000 MHz
Memory bandwidth 64 GB/s
Shared memory + -
DirectX 12 (12_1) 12 (11_1)
Shader Model 6.4 5.1
OpenGL 4.6 4.6
OpenCL 2.1 1.2
Vulkan 1.1.97 1.2.131
Laptop size large
Quick Sync +
  Check Price Check Price