GeForce GT 640M LE vs UHD Graphics 615

When comparing GeForce GT 640M LE and UHD Graphics 615, 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 640M LE and UHD Graphics 615 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GT 640M LE and UHD Graphics 615 are Laptop Graphics Cards

Note: GeForce GT 640M LE and UHD Graphics 615 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 LE or UHD Graphics 615 here:

Main Specs

  GeForce GT 640M LE UHD Graphics 615
Power consumption (TDP) 20 Watt 15 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x1
Memory type DDR3\DDR5 DDR3L/LPDDR3
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce GT 640M LE has 33% more power consumption, than UHD Graphics 615.
  • GeForce GT 640M LE is connected by PCIe 2.0 x16, and UHD Graphics 615 uses PCIe 3.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and UHD Graphics 615 - with Gen. 9 Amber Lake.
  • GeForce GT 640M LE is manufactured by 28 nm process technology, and UHD Graphics 615 - by 14 nm process technology.

Game benchmarks

high / 1080p 0−1 0−1
ultra / 1080p 0−1
QHD / 1440p 0−1 0−1
low / 720p 1−2 10−11
medium / 1080p 0−1 1−2
The average gaming FPS of UHD Graphics 615 in Assassin's Creed Odyssey is 900% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE UHD Graphics 615
Architecture Fermi / Kepler Gen. 9 Amber Lake
Code name N13P-LP Kaby-Lake GT2
Type Laptop Laptop
Release date 22 March 2012 30 August 2018
Pipelines 384 24
Core clock speed 300 MHz
Boost Clock 1000 MHz
Transistor count 585 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 25.20
Floating-point performance 384.0 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 6.4
OpenGL 4.5 4.6
OpenCL 1.1 2.1
Vulkan N/A 1.1.103
CUDA +
CUDA cores Up to 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) 14 Mh/s
Laptop size medium sized
Optimus +
Quick Sync +
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