GeForce GT 640M vs Iris Xe Graphics G7

When choosing between GeForce GT 640M and Iris Xe Graphics G7, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 640M and Iris Xe Graphics G7.

GeForce GT 640M and Iris Xe Graphics G7 are Laptop Graphics Cards

Note: GeForce GT 640M and Iris 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 640M or Iris Xe Graphics G7 here:

Main Specs

  GeForce GT 640M Iris 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 640M is build with Kepler architecture, and Iris Xe Graphics G7 - with Gen. 11 Ice Lake.
  • GeForce GT 640M is manufactured by 28 nm process technology, and Iris Xe Graphics G7 - by 10 nm process technology.

Game benchmarks

high / 1080p 0−1 16−18
ultra / 1080p 0−1 9−10
QHD / 1440p 0−1 3−4
low / 720p 10−12 30−35
medium / 1080p 2−3 20−22
The average gaming FPS of Iris Xe Graphics G7 in Assassin's Creed Odyssey is 333% more, than GeForce GT 640M.

Full Specs

  GeForce GT 640M Iris 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
Boost Clock 645 MHz
Transistor count 1,270 million
Manufacturing process technology 28 nm 10 nm
Floating-point performance 480.0 gflops
Memory bus width 128bit
Memory clock speed 1800 - 4000 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) 18 Mh/s
Laptop size medium sized
Optimus +
Quick Sync +
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