GeForce 945M vs GeForce GTX 660M

When choosing between GeForce 945M and GeForce GTX 660M, 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 945M and GeForce GTX 660M.

GeForce 945M and GeForce GTX 660M are Laptop Graphics Cards

Note: GeForce 945M and GeForce GTX 660M 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 945M or GeForce GTX 660M here:

Main Specs

  GeForce 945M GeForce GTX 660M
Power consumption (TDP) 75 Watt 50 Watt
Interface MXM-B (3.0) MXM-B (3.0)
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs No outputs
  Check Price Check Price
  • GeForce 945M has 50% more power consumption, than GeForce GTX 660M.
  • Both video cards are using MXM-B (3.0) interface connection to a motherboard.
  • GeForce 945M has 2 GB more memory, than GeForce GTX 660M.
  • Both cards are used in Laptops.
  • GeForce 945M is build with Maxwell architecture, and GeForce GTX 660M - with Kepler.
  • Core clock speed of GeForce 945M is 93 MHz higher, than GeForce GTX 660M.
  • GeForce 945M and GeForce GTX 660M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 945M and GeForce GTX 660M is 2000 MHz.

Game benchmarks

high / 1080p 10−11 6−7
ultra / 1080p 6−7 4−5
QHD / 1440p 1−2 0−1
low / 720p 24−27 16−18
medium / 1080p 12−14 8−9
The average gaming FPS of GeForce 945M in Assassin's Creed Odyssey is 44% more, than GeForce GTX 660M.

Full Specs

  GeForce 945M GeForce GTX 660M
Architecture Maxwell Kepler
Code name GM107 N13E-GE
Type Laptop Laptop
Release date 12 March 2015 22 March 2012
Pipelines 512 384
Core clock speed 928 MHz 835 MHz
Boost Clock 1045 MHz 950 MHz
Transistor count 1,870 million 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 40.80 30.4 billion/sec
Floating-point performance 953.9 gflops 729.6 gflops
Memory bus width 128 Bit 128bit
Memory clock speed 2000 MHz 2000 MHz
Memory bandwidth 28.8 GB/s 64.0 GB/s
Shared memory - -
DirectX 12 (11_0) 12 API
Shader Model 5.1 5.1
OpenGL 4.5 4.5
OpenCL 1.2 1.1
Vulkan 1.1.126 1.1.126
CUDA + +
CUDA cores 384
Bus support PCI Express 3.0 PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 107 Mh/s 36 Mh/s
Laptop size medium sized large
Optimus + +
GPU Boost 2.0
GameWorks +
  Check Price Check Price