GeForce GTX 660M vs Quadro P400

In this comparison between GeForce GTX 660M and Quadro P400 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 660M will be the best choice, for others Quadro P400 will be their preference. Study the comparison tables below and make your choice.

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 Quadro P400
Power consumption (TDP) 50 Watt 30 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 3x mini-DisplayPort
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  • GeForce GTX 660M has 66% more power consumption, than Quadro P400.
  • GeForce GTX 660M is connected by MXM-B (3.0), and Quadro P400 uses PCIe 3.0 x16 interface.
  • GeForce GTX 660M and Quadro P400 have maximum RAM of 2 GB.
  • GeForce GTX 660M is used in Laptops, and Quadro P400 - in Desktops.
  • GeForce GTX 660M is build with Kepler architecture, and Quadro P400 - with Pascal.
  • Core clock speed of Quadro P400 is 393 MHz higher, than GeForce GTX 660M.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Quadro P400 - by 14 nm process technology.
  • Memory clock speed of Quadro P400 is 2008 MHz higher, than GeForce GTX 660M.

Game benchmarks

high / 1080p 6−7 7−8
ultra / 1080p 4−5 4−5
QHD / 1440p 0−1 0−1
low / 720p 16−18 18−20
medium / 1080p 8−9 9−10
The average gaming FPS of Quadro P400 in Assassin's Creed Odyssey is 11% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M Quadro P400
Architecture Kepler Pascal
Code name N13E-GE GP107
Type Laptop Workstation
Release date 22 March 2012 7 February 2017
Pipelines 384 256
Core clock speed 835 MHz 1228 MHz
Boost Clock 950 MHz 1252 MHz
Transistor count 1,270 million 3,300 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec 20.03
Floating-point performance 729.6 gflops 679.9 gflops
Length 145 mm
Memory bus width 128bit 64 Bit
Memory clock speed 2000 MHz 4008 MHz
Memory bandwidth 64.0 GB/s 32.06 GB/s
Shared memory -
DirectX 12 API 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan 1.1.126 1.2.131
CUDA + 6.1
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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