Iris Pro Graphics 580 vs Quadro M620

If you are going to buy a new graphics card and are choosing between Iris Pro Graphics 580 and Quadro M620, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Iris Pro Graphics 580 stacks up against Quadro M620, check out specs charts below.

Iris Pro Graphics 580 and Quadro M620 are Laptop Graphics Cards

Note: Iris Pro Graphics 580 and Quadro M620 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 Quadro M620 here:

Main Specs

  Iris Pro Graphics 580 Quadro M620
Power consumption (TDP) 15 Watt 30 Watt
Interface PCIe 3.0 x1
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 2 GB
Display Connectors No outputs
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  • Quadro M620 has 100% more power consumption, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 has 62 GB more memory, than Quadro M620.
  • Iris Pro Graphics 580 is used in Laptops, and Quadro M620 - in Mobile workstations.
  • Iris Pro Graphics 580 is build with Gen. 9 Skylake architecture, and Quadro M620 - with Maxwell.
  • Core clock speed of Quadro M620 is 668 MHz higher, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is manufactured by 14 nm process technology, and Quadro M620 - by 28 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 30−35
medium / 1080p 10−12 18−20
The average gaming FPS of Quadro M620 in Assassin's Creed Odyssey is 63% more, than Iris Pro Graphics 580.

Full Specs

  Iris Pro Graphics 580 Quadro M620
Architecture Gen. 9 Skylake Maxwell
Code name Skylake GT4e
Type Laptop Mobile workstation
Release date 1 September 2015 13 January 2017
Pipelines 72 512
Core clock speed 350 MHz 1018 MHz
Boost Clock 1050 MHz
Transistor count 189 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 72.00
Memory bus width 128 Bit
Memory clock speed 5012 MHz
Memory bandwidth 80 GB/s
Shared memory + -
DirectX 12 (12_1) 12
Shader Model 6.4 5.0
OpenGL 4.6 4.5
OpenCL 2.1
Vulkan 1.1.97
Laptop size large
Optimus +
Quick Sync +
Display Port 1.2
Mosaic +
nView Display Management +
3D Stereo +
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