Iris Pro Graphics P580 vs Radeon HD 7870M

Find out if it is worth upgrading your current GPU setup by comparing Iris Pro Graphics P580 and Radeon HD 7870M. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Iris Pro Graphics P580 and Radeon HD 7870M. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Iris Pro Graphics P580 and Radeon HD 7870M are Laptop Graphics Cards

Note: Iris Pro Graphics P580 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 P580 or Radeon HD 7870M here:

Main Specs

  Iris Pro Graphics P580 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
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  • Radeon HD 7870M has 200% more power consumption, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
  • Iris Pro Graphics P580 has 62 GB more memory, than Radeon HD 7870M.
  • Both cards are used in Laptops.
  • Iris Pro Graphics P580 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 P580.
  • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon HD 7870M - by 28 nm process technology.

Game benchmarks

high / 1080p 10−11 6−7
ultra / 1080p 6−7 4−5
QHD / 1440p 0−1 0−1
low / 720p 21−24 16−18
medium / 1080p 12−14 8−9
The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 44% more, than Radeon HD 7870M.

Full Specs

  Iris Pro Graphics P580 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 1100 MHz
Transistor count 189 million 1,500 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 75.60 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 +
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