GeForce GTX 675M SLI vs Iris Plus Graphics 645

If you are going to buy a new graphics card and are choosing between GeForce GTX 675M SLI and Iris Plus Graphics 645, 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 GTX 675M SLI stacks up against Iris Plus Graphics 645, check out specs charts below.

GeForce GTX 675M SLI and Iris Plus Graphics 645 are Laptop Graphics Cards

Note: GeForce GTX 675M SLI and Iris Plus Graphics 645 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 GTX 675M SLI or Iris Plus Graphics 645 here:

Main Specs

  GeForce GTX 675M SLI Iris Plus Graphics 645
Power consumption (TDP) 2x 100 Watt 15 Watt
Interface PCIe 3.0 x1
Memory type GDDR5 DDR3/DDR4
Display Connectors No outputs
  Check Price Check Price
  • Iris Plus Graphics 645 has 650% more power consumption, than GeForce GTX 675M SLI.
  • Both cards are used in Laptops.
  • GeForce GTX 675M SLI is build with Fermi architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
  • Core clock speed of GeForce GTX 675M SLI is 320 MHz higher, than Iris Plus Graphics 645.
  • GeForce GTX 675M SLI is manufactured by 40 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

Game benchmarks

high / 1080p 18−20 4−5
ultra / 1080p 10−12 2−3
QHD / 1440p 5−6 0−1
4K / 2160p 4−5
low / 720p 35−40 12−14
medium / 1080p 24−27 5−6
The average gaming FPS of GeForce GTX 675M SLI in Assassin's Creed Odyssey is 283% more, than Iris Plus Graphics 645.

Full Specs

  GeForce GTX 675M SLI Iris Plus Graphics 645
Architecture Fermi Gen. 9.5 Coffee Lake
Code name N12E-GTX2 Kaby Lake GT3e
Type Laptop Laptop
Release date 6 January 2011 10 July 2019
Pipelines 768 48
Core clock speed 620 MHz 300 MHz
Boost Clock 1150 MHz
Manufacturing process technology 40 nm 14 nm
Texture fill rate 50.40
Memory bus width 256 Bit
Memory clock speed 3000 MHz
Shared memory - +
DirectX DirectX 11, Shader 5.0 12 (12_1)
Shader Model 6.4
OpenGL 4.6
OpenCL 2.1
Vulkan 1.1.103
CUDA +
SLI options +
Laptop size large
Optimus +
Quick Sync +
  Check Price Check Price