GeForce GT 645M vs Quadro P1000

If you are going to buy a new graphics card and are choosing between GeForce GT 645M and Quadro P1000, 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 645M stacks up against Quadro P1000, check out specs charts below.

GeForce GT 645M is a Laptop Graphics Card

Note: GeForce GT 645M 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 GT 645M here:

Main Specs

  GeForce GT 645M Quadro P1000
Power consumption (TDP) 32 Watt 47 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 4x mini-DisplayPort
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  • Quadro P1000 has 46% more power consumption, than GeForce GT 645M.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Quadro P1000 has 2 GB more memory, than GeForce GT 645M.
  • GeForce GT 645M is used in Laptops, and Quadro P1000 - in Desktops.
  • GeForce GT 645M is build with Kepler architecture, and Quadro P1000 - with Pascal.
  • GeForce GT 645M is manufactured by 28 nm process technology, and Quadro P1000 - by 14 nm process technology.
  • Memory clock speed of Quadro P1000 is 4208 MHz higher, than GeForce GT 645M.

Game benchmarks

high / 1080p 1−2 21−24
ultra / 1080p 0−1 12−14
QHD / 1440p 0−1 8−9
4K / 2160p 5−6
low / 720p 12−14 40−45
medium / 1080p 2−3 27−30
The average gaming FPS of Quadro P1000 in Assassin's Creed Odyssey is 520% more, than GeForce GT 645M.

Full Specs

  GeForce GT 645M Quadro P1000
Architecture Kepler Pascal
Code name N13P-GS GP107
Type Laptop Workstation
Release date 22 March 2012 1 February 2017
Pipelines 384 512
Core clock speed 1493 MHz
Boost Clock 1519 MHz
Transistor count 1,270 million 3,300 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 22.7 billion/sec 59.20
Floating-point performance 544.5 gflops 1,894 gflops
Length 145 mm
Memory bus width 128bit 128 Bit
Memory clock speed 1800 MHz 6008 MHz
Memory bandwidth 80.19 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
CUDA + 6.1
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
Laptop size medium sized
Optimus + +
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