Iris Plus Graphics 640 vs Radeon R9 A375

Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 640 and Radeon R9 A375. 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 640 and Radeon R9 A375. 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 640 is a Laptop Graphics Card

Note: Iris Plus Graphics 640 is only used in laptop graphics. It has 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 here:

Main Specs

  Iris Plus Graphics 640 Radeon R9 A375
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x16
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 32 GB 2 GB
Display Connectors No outputs No outputs
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  • Iris Plus Graphics 640 is connected by PCIe 3.0 x1, and Radeon R9 A375 uses PCIe 3.0 x16 interface.
  • Iris Plus Graphics 640 has 30 GB more memory, than Radeon R9 A375.
  • Iris Plus Graphics 640 is used in Laptops, and Radeon R9 A375 - in Desktops.
  • Iris Plus Graphics 640 is build with Gen. 9.5 Kaby Lake architecture, and Radeon R9 A375 - with GCN 1.0.
  • Core clock speed of Radeon R9 A375 is 600 MHz higher, than Iris Plus Graphics 640.
  • Iris Plus Graphics 640 is manufactured by 14 nm process technology, and Radeon R9 A375 - by 28 nm process technology.

Game benchmarks

high / 1080p 6−7 2−3
ultra / 1080p 4−5 1−2
QHD / 1440p 0−1 0−1
low / 720p 16−18 12−14
medium / 1080p 8−9 4−5
The average gaming FPS of Iris Plus Graphics 640 in Assassin's Creed Odyssey is 80% more, than Radeon R9 A375.

Full Specs

  Iris Plus Graphics 640 Radeon R9 A375
Architecture Gen. 9.5 Kaby Lake GCN 1.0
Code name Kaby Lake GT3e Venus
Type Laptop Desktop
Release date 3 January 2017 no data
Pipelines 48 640
Core clock speed 300 MHz 900 MHz
Boost Clock 1050 MHz 925 MHz
Transistor count 189 million 1,500 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 52.80 37.00
Memory bus width 64/128 Bit 128 Bit
Memory clock speed 4.5 GB/s
Memory bandwidth 72 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 1.1.103 1.2
Quick Sync +
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