FirePro M4000 vs GeForce GT 645M

When choosing between FirePro M4000 and GeForce GT 645M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between FirePro M4000 and GeForce GT 645M.

FirePro M4000 and GeForce GT 645M are Laptop Graphics Cards

Note: FirePro M4000 and GeForce GT 645M 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 FirePro M4000 or GeForce GT 645M here:

Main Specs

  FirePro M4000 GeForce GT 645M
Power consumption (TDP) 33 Watt 32 Watt
Interface MXM-A (3.0) PCIe 3.0 x16
Supplementary power connectors None
Memory type GDDR5 DDR3\GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs No outputs
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  • FirePro M4000 has 3% more power consumption, than GeForce GT 645M.
  • FirePro M4000 is connected by MXM-A (3.0), and GeForce GT 645M uses PCIe 3.0 x16 interface.
  • GeForce GT 645M has 1 GB more memory, than FirePro M4000.
  • FirePro M4000 is used in Mobile workstations, and GeForce GT 645M - in Laptops.
  • FirePro M4000 is build with GCN architecture, and GeForce GT 645M - with Kepler.
  • FirePro M4000 and GeForce GT 645M are manufactured by 28 nm process technology.
  • Memory clock speed of FirePro M4000 is 2700 MHz higher, than GeForce GT 645M.

Game benchmarks

high / 1080p 7−8 1−2
ultra / 1080p 4−5 0−1
QHD / 1440p 0−1 0−1
low / 720p 18−20 12−14
medium / 1080p 9−10 2−3
The average gaming FPS of FirePro M4000 in Assassin's Creed Odyssey is 140% more, than GeForce GT 645M.

Full Specs

  FirePro M4000 GeForce GT 645M
Architecture GCN Kepler
Code name Cape Verde GLM N13P-GS
Type Mobile workstation Laptop
Release date 1 July 2012 22 March 2012
Pipelines 512 384
Core clock speed 600 MHz
Transistor count 1,500 million 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 21.60 22.7 billion/sec
Floating-point performance 691.2 gflops 544.5 gflops
Memory bus width 128 Bit 128bit
Memory clock speed 4500 MHz 1800 MHz
Memory bandwidth 72 GB/s
Shared memory - -
DirectX 12 (11_1) 12 API
Shader Model 5.1 5.1
OpenGL 4.6 4.5
OpenCL 1.2 1.1
Vulkan 1.2.131 1.1.126
CUDA +
CUDA cores 384
Bus support n/a PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 79 Mh/s 19 Mh/s
Laptop size medium sized medium sized
Optimus +
Form factor MXM-A
StereoOutput3D +
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