GeForce GT 645M vs Tiger Lake U Xe Graphics G7

When comparing GeForce GT 645M and Tiger Lake U Xe Graphics G7, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 645M and Tiger Lake U Xe Graphics G7 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GT 645M and Tiger Lake U Xe Graphics G7 are Laptop Graphics Cards

Note: GeForce GT 645M and Tiger Lake U Xe Graphics G7 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 645M or Tiger Lake U Xe Graphics G7 here:

Main Specs

  GeForce GT 645M Tiger Lake U Xe Graphics G7
Power consumption (TDP) 32 Watt
Interface PCIe 3.0 x16
Memory type DDR3\GDDR5 DDR4
Maximum RAM amount 2 GB
Display Connectors No outputs
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  • Both cards are used in Laptops.
  • GeForce GT 645M is build with Kepler architecture, and Tiger Lake U Xe Graphics G7 - with Gen. 11 Ice Lake.
  • GeForce GT 645M is manufactured by 28 nm process technology, and Tiger Lake U Xe Graphics G7 - by 10 nm process technology.

Game benchmarks

high / 1080p 1−2 12−14
ultra / 1080p 0−1 7−8
QHD / 1440p 0−1 1−2
low / 720p 12−14 30−33
medium / 1080p 2−3 16−18
The average gaming FPS of Tiger Lake U Xe Graphics G7 in Assassin's Creed Odyssey is 300% more, than GeForce GT 645M.

Full Specs

  GeForce GT 645M Tiger Lake U Xe Graphics G7
Architecture Kepler Gen. 11 Ice Lake
Code name N13P-GS Tiger Lake Xe
Type Laptop Laptop
Release date 22 March 2012 15 August 2020
Pipelines 384 96
Transistor count 1,270 million
Manufacturing process technology 28 nm 10 nm
Texture fill rate 22.7 billion/sec
Floating-point performance 544.5 gflops
Memory bus width 128bit
Memory clock speed 1800 MHz
Shared memory - +
DirectX 12 API DirectX 12_1
Shader Model 5.1
OpenGL 4.5
OpenCL 1.1
Vulkan 1.1.126
CUDA +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 19 Mh/s
Laptop size medium sized
Optimus +
Quick Sync +
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