Iris Plus Graphics 645 vs Radeon RX Vega 8 Ryzen 4000

Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 645 and Radeon RX Vega 8 Ryzen 4000. 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 Plus Graphics 645 and Radeon RX Vega 8 Ryzen 4000. 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 Plus Graphics 645 and Radeon RX Vega 8 Ryzen 4000 are Laptop Graphics Cards

Note: Iris Plus Graphics 645 and Radeon RX Vega 8 Ryzen 4000 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 645 or Radeon RX Vega 8 Ryzen 4000 here:

Main Specs

  Iris Plus Graphics 645 Radeon RX Vega 8 Ryzen 4000
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1
Memory type DDR3/DDR4
Display Connectors No outputs
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  • Both cards are used in Laptops.
  • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon RX Vega 8 Ryzen 4000 - with Vega.
  • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon RX Vega 8 Ryzen 4000 - by 7 nm process technology.

Game benchmarks

high / 1080p 4−5 20−22
ultra / 1080p 2−3 12−14
QHD / 1440p 0−1 6−7
4K / 2160p 5−6
low / 720p 12−14 35−40
medium / 1080p 5−6 24−27
The average gaming FPS of Radeon RX Vega 8 Ryzen 4000 in Assassin's Creed Odyssey is 300% more, than Iris Plus Graphics 645.

Full Specs

  Iris Plus Graphics 645 Radeon RX Vega 8 Ryzen 4000
Architecture Gen. 9.5 Coffee Lake Vega
Code name Kaby Lake GT3e Vega Raven Ridge
Type Laptop Laptop
Release date 10 July 2019 7 January 2020
Pipelines 48 512
Core clock speed 300 MHz
Boost Clock 1150 MHz 1750 MHz
Manufacturing process technology 14 nm 7 nm
Texture fill rate 50.40
Shared memory + -
DirectX 12 (12_1) DirectX 12_1
Shader Model 6.4
OpenGL 4.6
OpenCL 2.1
Vulkan 1.1.103
Quick Sync +
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