Iris Plus Graphics 655 vs Radeon R9 M275

Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 655 and Radeon R9 M275. 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 655 and Radeon R9 M275. 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 655 and Radeon R9 M275 are Laptop Graphics Cards

Note: Iris Plus Graphics 655 and Radeon R9 M275 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 655 or Radeon R9 M275 here:

Main Specs

  Iris Plus Graphics 655 Radeon R9 M275
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x16
Memory type DDR3/DDR4 GDDR5
Maximum RAM amount 4 GB
Display Connectors No outputs No outputs
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  • Iris Plus Graphics 655 is connected by PCIe 3.0 x1, and Radeon R9 M275 uses PCIe 3.0 x16 interface.
  • Both cards are used in Laptops.
  • Iris Plus Graphics 655 is build with Gen. 9.5 Kaby Lake architecture, and Radeon R9 M275 - with GCN.
  • Core clock speed of Radeon R9 M275 is 625 MHz higher, than Iris Plus Graphics 655.
  • Iris Plus Graphics 655 is manufactured by 14 nm process technology, and Radeon R9 M275 - by 28 nm process technology.

Game benchmarks

high / 1080p 12−14 0−1
ultra / 1080p 7−8
QHD / 1440p 2−3 0−1
low / 720p 27−30 12−14
medium / 1080p 16−18 3−4
The average gaming FPS of Iris Plus Graphics 655 in Assassin's Creed Odyssey is 175% more, than Radeon R9 M275.

Full Specs

  Iris Plus Graphics 655 Radeon R9 M275
Architecture Gen. 9.5 Kaby Lake GCN
Code name Kaby Lake GT3e Venus
Type Laptop Laptop
Release date 1 September 2017 1 August 2014
Pipelines 48 640
Core clock speed 300 MHz 925 MHz
Boost Clock 1200 MHz 925 MHz
Transistor count 189 million 1,500 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 50.40 37.00
Floating-point performance 1,184 gflops
Memory bus width 128 Bit
Memory clock speed 4500 MHz
Memory bandwidth 64 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 1.2.131
Bitcoin / BTC (SHA256) 122 Mh/s
Laptop size large
Quick Sync +
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