Iris Plus Graphics 640 vs Radeon Pro Vega 20

If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 640 and Radeon Pro Vega 20, 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 Plus Graphics 640 stacks up against Radeon Pro Vega 20, check out specs charts below.

Iris Plus Graphics 640 and Radeon Pro Vega 20 are Laptop Graphics Cards

Note: Iris Plus Graphics 640 and Radeon Pro Vega 20 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 640 or Radeon Pro Vega 20 here:

Main Specs

  Iris Plus Graphics 640 Radeon Pro Vega 20
Power consumption (TDP) 15 Watt 100 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type DDR3L/LPDDR3/DDR4 HBM2
Maximum RAM amount 32 GB 4 GB
Display Connectors No outputs No outputs
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  • Radeon Pro Vega 20 has 566% more power consumption, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is connected by PCIe 3.0 x1, and Radeon Pro Vega 20 uses PCIe 3.0 x16 interface.
  • Iris Plus Graphics 640 has 28 GB more memory, than Radeon Pro Vega 20.
  • Iris Plus Graphics 640 is used in Laptops, and Radeon Pro Vega 20 - in Mobile workstations.
  • Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon Pro Vega 20 - with Vega.
  • Core clock speed of Radeon Pro Vega 20 is 515 MHz higher, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 and Radeon Pro Vega 20 are manufactured by 14 nm process technology.

Game benchmarks

high / 1080p 6−7 35−40
ultra / 1080p 4−5 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 16−18 60−65
medium / 1080p 8−9 40−45
The average gaming FPS of Radeon Pro Vega 20 in Assassin's Creed Odyssey is 355% more, than Iris Plus Graphics 640.

Full Specs

  Iris Plus Graphics 640 Radeon Pro Vega 20
Architecture Gen. 9.5 Kaby Lake Vega
Code name Kaby Lake GT3e Vega Mobile
Type Laptop Mobile workstation
Release date 3 January 2017 15 November 2018
Pipelines 48 1280
Core clock speed 300 MHz 815 MHz
Boost Clock 1050 MHz 1283 MHz
Transistor count 189 million
Manufacturing process technology 14 nm 14 nm
Texture fill rate 52.80 102.6
Memory bus width 64/128 Bit 1024 Bit
Memory clock speed 1480 MHz
Memory bandwidth 189.4 GB/s
Shared memory + -
DirectX 12 (12_1) 12 (12_1)
Shader Model 6.4 6.3
OpenGL 4.6 4.6
OpenCL 2.1 2.0
Vulkan 1.1.103 1.2.131
Laptop size large
Quick Sync +
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