GeForce GTX 660 vs Quadro P620

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and Quadro P620, 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 660 stacks up against Quadro P620, check out specs charts below.

Main Specs

  GeForce GTX 660 Quadro P620
Power consumption (TDP) 140 Watt 40 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors One 6-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 4x mini-DisplayPort
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  • GeForce GTX 660 has 250% more power consumption, than Quadro P620.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Quadro P620 has 2 GB more memory, than GeForce GTX 660.
  • Both cards are used in Desktops.
  • GeForce GTX 660 is build with Kepler architecture, and Quadro P620 - with Pascal.
  • Core clock speed of Quadro P620 is 197 MHz higher, than GeForce GTX 660.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and Quadro P620 - by 14 nm process technology.
  • Quadro P620 is 136 mm longer, than GeForce GTX 660.
  • Memory clock speed of Quadro P620 is 5994 MHz higher, than GeForce GTX 660.

Game benchmarks

high / 1080p 20−22 18−20
ultra / 1080p 12−14 10−12
QHD / 1440p 6−7 5−6
4K / 2160p 5−6 4−5
low / 720p 40−45 35−40
medium / 1080p 24−27 21−24
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 18% more, than Quadro P620.

Full Specs

  GeForce GTX 660 Quadro P620
Architecture Kepler Pascal
Code name GK106 GP107
Type Desktop Workstation
Release date 6 September 2012 27 May 2019
Pipelines 960 512
Core clock speed 980 MHz 1177 MHz
Boost Clock 1033 MHz 1442 MHz
Transistor count 2,540 million 3,300 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 78.4 billion/sec 43.33
Floating-point performance 1,981 gflops 1,490 gflops
Length 9.5" (24.1 cm) 145 mm
Memory bus width 192-bit GDDR5 128 Bit
Memory clock speed 6.0 GB/s 6000 MHz
Memory bandwidth 144.2 GB/s 80.13 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.3 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA + 6.1
CUDA cores 960
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 66 Mh/s
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