GeForce GT 640M vs UHD Graphics G7 Lakefield GT2 64 EU

In this comparison between GeForce GT 640M and UHD Graphics G7 Lakefield GT2 64 EU you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 640M will be the best choice, for others UHD Graphics G7 Lakefield GT2 64 EU will be their preference. Study the comparison tables below and make your choice.

GeForce GT 640M and UHD Graphics G7 Lakefield GT2 64 EU are Laptop Graphics Cards

Note: GeForce GT 640M and UHD Graphics G7 Lakefield GT2 64 EU 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 UHD Graphics G7 Lakefield GT2 64 EU here:

Main Specs

  GeForce GT 640M UHD Graphics G7 Lakefield GT2 64 EU
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 UHD Graphics G7 Lakefield GT2 64 EU - with Gen. 11 Ice Lake.
  • GeForce GT 640M is manufactured by 28 nm process technology, and UHD Graphics G7 Lakefield GT2 64 EU - by 10 nm process technology.

Game benchmarks

high / 1080p 0−1 5−6
ultra / 1080p 0−1 3−4
QHD / 1440p 0−1 0−1
low / 720p 10−12 14−16
medium / 1080p 2−3 6−7
The average gaming FPS of UHD Graphics G7 Lakefield GT2 64 EU in Assassin's Creed Odyssey is 66% more, than GeForce GT 640M.

Full Specs

  GeForce GT 640M UHD Graphics G7 Lakefield GT2 64 EU
Architecture Kepler Gen. 11 Ice Lake
Code name N13P-GS Lakefield GT2
Type Laptop Laptop
Release date 22 March 2012 28 May 2020
Pipelines 384 64
Core clock speed 200 MHz
Boost Clock 645 MHz 500 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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