GeForce GTX 660M vs GeForce GTX 950A

If you are going to buy a new graphics card and are choosing between GeForce GTX 660M and GeForce GTX 950A, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 660M stacks up against GeForce GTX 950A, check out specs charts below.

GeForce GTX 660M is a Laptop Graphics Card

Note: GeForce GTX 660M 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 GTX 660M here:

Main Specs

  GeForce GTX 660M GeForce GTX 950A
Power consumption (TDP) 50 Watt 75 Watt
Interface MXM-B (3.0) MXM-B (3.0)
Memory type GDDR5 DDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 950A has 50% more power consumption, than GeForce GTX 660M.
  • Both video cards are using MXM-B (3.0) interface connection to a motherboard.
  • GeForce GTX 660M and GeForce GTX 950A have maximum RAM of 2 GB.
  • GeForce GTX 660M is used in Laptops, and GeForce GTX 950A - in Desktops.
  • GeForce GTX 660M is build with Kepler architecture, and GeForce GTX 950A - with Maxwell.
  • Core clock speed of GeForce GTX 950A is 158 MHz higher, than GeForce GTX 660M.
  • GeForce GTX 660M and GeForce GTX 950A are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 950A is 2 MHz higher, than GeForce GTX 660M.

Game benchmarks

high / 1080p 6−7 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 2−3
low / 720p 16−18 24−27
medium / 1080p 8−9 14−16
The average gaming FPS of GeForce GTX 950A in Assassin's Creed Odyssey is 66% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M GeForce GTX 950A
Architecture Kepler Maxwell
Code name N13E-GE GM107
Type Laptop Desktop
Release date 22 March 2012 13 March 2015
Pipelines 384 640
Core clock speed 835 MHz 993 MHz
Boost Clock 950 MHz 1124 MHz
Transistor count 1,270 million 1,870 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 30.4 billion/sec 44.96
Floating-point performance 729.6 gflops 1,271 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 2000 MHz 2002 MHz
Memory bandwidth 64.0 GB/s 32.03 GB/s
Shared memory -
DirectX 12 API 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan 1.1.126 1.1.126
CUDA + 5.0
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 +
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