GeForce GTX 660M vs UHD Graphics 615

When comparing GeForce GTX 660M 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 GTX 660M 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 GTX 660M and UHD Graphics 615 are Laptop Graphics Cards

Note: GeForce GTX 660M 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 GTX 660M or UHD Graphics 615 here:

Main Specs

  GeForce GTX 660M UHD Graphics 615
Power consumption (TDP) 50 Watt 15 Watt
Interface MXM-B (3.0) PCIe 3.0 x1
Memory type GDDR5 DDR3L/LPDDR3
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 660M has 233% more power consumption, than UHD Graphics 615.
  • GeForce GTX 660M is connected by MXM-B (3.0), and UHD Graphics 615 uses PCIe 3.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce GTX 660M is build with Kepler architecture, and UHD Graphics 615 - with Gen. 9 Amber Lake.
  • Core clock speed of GeForce GTX 660M is 535 MHz higher, than UHD Graphics 615.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and UHD Graphics 615 - by 14 nm process technology.

Game benchmarks

high / 1080p 6−7 0−1
ultra / 1080p 4−5 0−1
QHD / 1440p 0−1 0−1
low / 720p 16−18 10−11
medium / 1080p 8−9 1−2
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 100% more, than UHD Graphics 615.

Full Specs

  GeForce GTX 660M UHD Graphics 615
Architecture Kepler Gen. 9 Amber Lake
Code name N13E-GE Kaby-Lake GT2
Type Laptop Laptop
Release date 22 March 2012 30 August 2018
Pipelines 384 24
Core clock speed 835 MHz 300 MHz
Boost Clock 950 MHz 1000 MHz
Transistor count 1,270 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec 25.20
Floating-point performance 729.6 gflops
Memory bus width 128bit 64/128 Bit
Memory clock speed 2000 MHz
Memory bandwidth 64.0 GB/s
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 1.1.126 1.1.103
CUDA +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 36 Mh/s
Laptop size large
Optimus +
Quick Sync +
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