GeForce GT 545 vs Iris Plus Graphics 645

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 545 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 545 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.

Iris Plus Graphics 645 is a Laptop Graphics Card

Note: Iris Plus Graphics 645 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 645 here:

Main Specs

  GeForce GT 545 Iris Plus Graphics 645
Power consumption (TDP) 70 Watt 15 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x1
Supplementary power connectors None
Memory type DDR3 DDR3/DDR4
Maximum RAM amount 1536 MB
Display Connectors 1x DVI, 1x HDMI, 1x VGA No outputs
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  • GeForce GT 545 has 366% more power consumption, than Iris Plus Graphics 645.
  • GeForce GT 545 is connected by PCIe 2.0 x16, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
  • GeForce GT 545 is used in Desktops, and Iris Plus Graphics 645 - in Laptops.
  • GeForce GT 545 is build with Fermi 2.0 architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
  • Core clock speed of GeForce GT 545 is 420 MHz higher, than Iris Plus Graphics 645.
  • GeForce GT 545 is manufactured by 40 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

Game benchmarks

high / 1080p 2−3 4−5
ultra / 1080p 0−1 2−3
QHD / 1440p 0−1 0−1
low / 720p 12−14 12−14
medium / 1080p 3−4 5−6
The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 16% more, than GeForce GT 545.

Full Specs

  GeForce GT 545 Iris Plus Graphics 645
Architecture Fermi 2.0 Gen. 9.5 Coffee Lake
Code name GF116 Kaby Lake GT3e
Type Desktop Laptop
Release date 14 May 2011 10 July 2019
Pipelines 144 48
Core clock speed 720 MHz 300 MHz
Boost Clock 1150 MHz
Transistor count 1,170 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 17.28 50.40
Floating-point performance 414.7 gflops
Length 145 mm
Memory bus width 192 Bit
Memory clock speed 1600 MHz
Memory bandwidth 38.4 GB/s
Shared memory +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.1 2.1
Vulkan N/A 1.1.103
CUDA 2.1
Bitcoin / BTC (SHA256) 35 Mh/s
Quick Sync +
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