Iris Pro Graphics 580 vs Mobility Radeon HD 4870

Find out if it is worth upgrading your current GPU setup by comparing Iris Pro Graphics 580 and Mobility Radeon HD 4870. 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 580 and Mobility Radeon HD 4870. 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 580 and Mobility Radeon HD 4870 are Laptop Graphics Cards

Note: Iris Pro Graphics 580 and Mobility Radeon HD 4870 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 Mobility Radeon HD 4870 here:

Main Specs

  Iris Pro Graphics 580 Mobility Radeon HD 4870
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1 PCIe 2.0 x16
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 1 GB
Display Connectors No outputs No outputs
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  • Iris Pro Graphics 580 is connected by PCIe 3.0 x1, and Mobility Radeon HD 4870 uses PCIe 2.0 x16 interface.
  • Iris Pro Graphics 580 has 63 GB more memory, than Mobility Radeon HD 4870.
  • Both cards are used in Laptops.
  • Iris Pro Graphics 580 is build with Gen. 9 Skylake architecture, and Mobility Radeon HD 4870 - with Terascale 1.
  • Core clock speed of Mobility Radeon HD 4870 is 200 MHz higher, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is manufactured by 14 nm process technology, and Mobility Radeon HD 4870 - by 55 nm process technology.

Game benchmarks

high / 1080p 9−10 7−8
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 Mobility Radeon HD 4870.

Full Specs

  Iris Pro Graphics 580 Mobility Radeon HD 4870
Architecture Gen. 9 Skylake Terascale 1
Code name Skylake GT4e M98-XT
Type Laptop Laptop
Release date 1 September 2015 9 January 2009
Pipelines 72 800
Core clock speed 350 MHz 550 MHz
Boost Clock 1050 MHz
Transistor count 189 million 956 million
Manufacturing process technology 14 nm 55 nm
Texture fill rate 72.00 22.00
Floating-point performance 880.0 gflops
Memory bus width 256 Bit
Memory clock speed 888 MHz
Memory bandwidth 56.83 GB/s
Shared memory + -
DirectX 12 (12_1) 10.1 (10_1)
Shader Model 6.4 4.1
OpenGL 4.6 3.3
OpenCL 2.1 1.1
Vulkan 1.1.97 N/A
Laptop size large
Quick Sync +
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