GeForce 845M vs Iris Plus Graphics 655

If you are going to buy a new graphics card and are choosing between GeForce 845M and Iris Plus Graphics 655, 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 GeForce 845M stacks up against Iris Plus Graphics 655, check out specs charts below.

GeForce 845M and Iris Plus Graphics 655 are Laptop Graphics Cards

Note: GeForce 845M and Iris Plus Graphics 655 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 GeForce 845M or Iris Plus Graphics 655 here:

Main Specs

  GeForce 845M Iris Plus Graphics 655
Power consumption (TDP) 45 Watt 15 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x1
Memory type DDR3, GDDR5 DDR3/DDR4
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce 845M has 200% more power consumption, than Iris Plus Graphics 655.
  • GeForce 845M is connected by PCIe 3.0 x8, and Iris Plus Graphics 655 uses PCIe 3.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce 845M is build with Maxwell architecture, and Iris Plus Graphics 655 - with Gen. 9.5 Kaby Lake.
  • Core clock speed of GeForce 845M is 771 MHz higher, than Iris Plus Graphics 655.
  • GeForce 845M is manufactured by 28 nm process technology, and Iris Plus Graphics 655 - by 14 nm process technology.

Game benchmarks

high / 1080p 3−4 12−14
ultra / 1080p 1−2 7−8
QHD / 1440p 0−1 2−3
low / 720p 14−16 27−30
medium / 1080p 6−7 16−18
The average gaming FPS of Iris Plus Graphics 655 in Assassin's Creed Odyssey is 166% more, than GeForce 845M.

Full Specs

  GeForce 845M Iris Plus Graphics 655
Architecture Maxwell Gen. 9.5 Kaby Lake
Code name GM108 Kaby Lake GT3e
Type Laptop Laptop
Release date 12 March 2014 1 September 2017
Pipelines 384 48
Core clock speed 1071 MHz 300 MHz
Boost Clock 1150 MHz 1200 MHz
Transistor count 1,870 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 37.63 50.40
Floating-point performance 883.7 gflops
Memory bus width 64/128 Bit
Memory clock speed 2000 - 5000 MHz
Memory bandwidth 40.1 GB/s
Shared memory - +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.1
Vulkan 1.1.126 1.1.103
CUDA +
Bitcoin / BTC (SHA256) 76 Mh/s
Laptop size medium sized
Optimus +
Quick Sync +
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