GeForce GT 755M SLI vs Iris Plus Graphics 645

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 755M SLI and Iris Plus Graphics 645. 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 GeForce GT 755M SLI and Iris Plus Graphics 645. 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.

GeForce GT 755M SLI and Iris Plus Graphics 645 are Laptop Graphics Cards

Note: GeForce GT 755M 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 GT 755M SLI or Iris Plus Graphics 645 here:

Main Specs

  GeForce GT 755M SLI Iris Plus Graphics 645
Power consumption (TDP) 2x ~50 Watt 15 Watt
Interface PCIe 3.0 x1
Memory type GDDR5 DDR3/DDR4
Maximum RAM amount 2x 2 GB
Display Connectors No outputs
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  • Iris Plus Graphics 645 has 650% more power consumption, than GeForce GT 755M SLI.
  • Both cards are used in Laptops.
  • GeForce GT 755M SLI is build with Kepler architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
  • Core clock speed of GeForce GT 755M SLI is 680 MHz higher, than Iris Plus Graphics 645.
  • GeForce GT 755M SLI is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

Game benchmarks

high / 1080p 14−16 4−5
ultra / 1080p 8−9 2−3
QHD / 1440p 2−3 0−1
low / 720p 30−35 12−14
medium / 1080p 18−20 5−6
The average gaming FPS of GeForce GT 755M SLI in Assassin's Creed Odyssey is 200% more, than Iris Plus Graphics 645.

Full Specs

  GeForce GT 755M SLI Iris Plus Graphics 645
Architecture Kepler Gen. 9.5 Coffee Lake
Code name N14P-? Kaby Lake GT3e
Type Laptop Laptop
Release date 1 November 2013 10 July 2019
Pipelines 768 48
Core clock speed 980 MHz 300 MHz
Boost Clock 1150 MHz
Transistor count 2x 1300 Million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 50.40
Memory bus width 2x 128 Bit
Memory clock speed 5400 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 +
Laptop size large
Quick Sync +
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