GeForce GT 640M vs UHD Graphics 630

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and UHD Graphics 630. 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 640M and UHD Graphics 630. 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 640M is a Laptop Graphics Card

Note: GeForce GT 640M 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 GeForce GT 640M here:

Main Specs

  GeForce GT 640M UHD Graphics 630
Power consumption (TDP) 32 Watt 15 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x1
Memory type DDR3\GDDR5 System Shared
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce GT 640M has 113% more power consumption, than UHD Graphics 630.
  • GeForce GT 640M is connected by PCIe 3.0 x16, and UHD Graphics 630 uses PCIe 3.0 x1 interface.
  • GeForce GT 640M is used in Laptops, and UHD Graphics 630 - in Desktops.
  • GeForce GT 640M is build with Kepler architecture, and UHD Graphics 630 - with Gen. 9.5.
  • GeForce GT 640M is manufactured by 28 nm process technology, and UHD Graphics 630 - by 14 nm process technology.

Game benchmarks

high / 1080p 0−1 3−4
ultra / 1080p 0−1 1−2
QHD / 1440p 0−1 0−1
low / 720p 10−12 14−16
medium / 1080p 2−3 5−6
The average gaming FPS of UHD Graphics 630 in Assassin's Creed Odyssey is 66% more, than GeForce GT 640M.

Full Specs

  GeForce GT 640M UHD Graphics 630
Architecture Kepler Gen. 9.5
Code name N13P-GS Kaby-Lake-H-GT2
Type Laptop Desktop
Release date 22 March 2012 1 October 2017
Pipelines 384 24
Core clock speed 300 MHz
Boost Clock 645 MHz 1150 MHz
Transistor count 1,270 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 26.45
Floating-point performance 480.0 gflops 460.8 gflops
Memory bus width 128bit 64/128 Bit
Memory clock speed 1800 - 4000 MHz
Shared memory - +
DirectX 12 API 12 (12_1)
Shader Model 5.1 6.5
OpenGL 4.5 4.6
OpenCL 1.1 2.1
Vulkan 1.1.126 1.1.103
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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