GeForce GT 750M SLI vs GeForce GTX 660M

If you are going to buy a new graphics card and are choosing between GeForce GT 750M SLI and GeForce GTX 660M, 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 GT 750M SLI stacks up against GeForce GTX 660M, check out specs charts below.

GeForce GT 750M SLI and GeForce GTX 660M are Laptop Graphics Cards

Note: GeForce GT 750M SLI 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 GT 750M SLI or GeForce GTX 660M here:

Main Specs

  GeForce GT 750M SLI GeForce GTX 660M
Power consumption (TDP) 50 Watt
Interface MXM-B (3.0)
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 2x 2 GB 2 GB
Display Connectors No outputs
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  • GeForce GT 750M SLI and GeForce GTX 660M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GT 750M SLI and GeForce GTX 660M are build with Kepler architecture.
  • Core clock speed of GeForce GT 750M SLI is 132 MHz higher, than GeForce GTX 660M.
  • GeForce GT 750M SLI and GeForce GTX 660M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 750M SLI and GeForce GTX 660M is 2000 MHz.

Game benchmarks

high / 1080p 14−16 6−7
ultra / 1080p 8−9 4−5
QHD / 1440p 3−4 0−1
low / 720p 30−33 16−18
medium / 1080p 18−20 8−9
The average gaming FPS of GeForce GT 750M SLI in Assassin's Creed Odyssey is 100% more, than GeForce GTX 660M.

Full Specs

  GeForce GT 750M SLI GeForce GTX 660M
Architecture Kepler Kepler
Code name N14P-GT N13E-GE
Type Laptop Laptop
Release date 1 April 2013 22 March 2012
Pipelines 768 384
Core clock speed 967 MHz 835 MHz
Boost Clock 950 MHz
Transistor count 1300 Million 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 30.4 billion/sec
Floating-point performance 729.6 gflops
Memory bus width 2x 128 Bit 128bit
Memory clock speed 2000 - 5000 MHz 2000 MHz
Memory bandwidth 64.0 GB/s
Shared memory - -
DirectX DirectX 11, Shader 5.0 12 API
Shader Model 5.1
OpenGL 4.5
OpenCL 1.1
Vulkan 1.1.126
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 large
Optimus +
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