GeForce GT 645M vs Quadro K1000M

In this comparison between GeForce GT 645M and Quadro K1000M 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 GT 645M will be the best choice, for others Quadro K1000M will be their preference. Study the comparison tables below and make your choice.

GeForce GT 645M and Quadro K1000M are Laptop Graphics Cards

Note: GeForce GT 645M and Quadro K1000M 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 645M or Quadro K1000M here:

Main Specs

  GeForce GT 645M Quadro K1000M
Power consumption (TDP) 32 Watt 45 Watt
Interface PCIe 3.0 x16 MXM-A (3.0)
Memory type DDR3\GDDR5 DDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Quadro K1000M has 40% more power consumption, than GeForce GT 645M.
  • GeForce GT 645M is connected by PCIe 3.0 x16, and Quadro K1000M uses MXM-A (3.0) interface.
  • GeForce GT 645M and Quadro K1000M have maximum RAM of 2 GB.
  • GeForce GT 645M is used in Laptops, and Quadro K1000M - in Mobile workstations.
  • GeForce GT 645M and Quadro K1000M are build with Kepler architecture.
  • GeForce GT 645M and Quadro K1000M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 645M and Quadro K1000M is 1800 MHz.

Game benchmarks

high / 1080p 1−2 0−1
ultra / 1080p 0−1
QHD / 1440p 0−1 0−1
low / 720p 12−14 1−2
medium / 1080p 2−3 0−1
The average gaming FPS of GeForce GT 645M in Assassin's Creed Odyssey is 1200% more, than Quadro K1000M.

Full Specs

  GeForce GT 645M Quadro K1000M
Architecture Kepler Kepler
Code name N13P-GS N14P-Q1
Type Laptop Mobile workstation
Release date 22 March 2012 1 June 2012
Pipelines 384 192
Core clock speed 850 MHz
Transistor count 1,270 million 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 22.7 billion/sec 13.60
Floating-point performance 544.5 gflops 326.4 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 1800 MHz 1800 MHz
Memory bandwidth 28.8 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 + +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 19 Mh/s 10 Mh/s
Laptop size medium sized medium sized
Optimus + +
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