FirePro M4100 vs GeForce GT 645M

Find out if it is worth upgrading your current GPU setup by comparing FirePro M4100 and GeForce GT 645M. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between FirePro M4100 and GeForce GT 645M. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

FirePro M4100 and GeForce GT 645M are Laptop Graphics Cards

Note: FirePro M4100 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 M4100 or GeForce GT 645M here:

Main Specs

  FirePro M4100 GeForce GT 645M
Power consumption (TDP) 32 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Memory type GDDR5 DDR3\GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • FirePro M4100 is connected by PCIe 3.0 x8, and GeForce GT 645M uses PCIe 3.0 x16 interface.
  • FirePro M4100 and GeForce GT 645M have maximum RAM of 2 GB.
  • FirePro M4100 is used in Mobile workstations, and GeForce GT 645M - in Laptops.
  • FirePro M4100 is build with GCN architecture, and GeForce GT 645M - with Kepler.
  • FirePro M4100 and GeForce GT 645M are manufactured by 28 nm process technology.
  • Memory clock speed of FirePro M4100 is 2200 MHz higher, than GeForce GT 645M.

Game benchmarks

high / 1080p 1−2 1−2
ultra / 1080p 0−1 0−1
QHD / 1440p 0−1 0−1
low / 720p 12−14 12−14
medium / 1080p 3−4 2−3
The average gaming FPS of FirePro M4100 in Assassin's Creed Odyssey is 20% more, than GeForce GT 645M.

Full Specs

  FirePro M4100 GeForce GT 645M
Architecture GCN Kepler
Code name Mars N13P-GS
Type Mobile workstation Laptop
Release date 1 October 2013 22 March 2012
Pipelines 384 384
Core clock speed 670 MHz
Transistor count 950 million 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 16.08 22.7 billion/sec
Floating-point performance 514.6 gflops 544.5 gflops
Memory bus width 128 Bit 128bit
Memory clock speed 4000 MHz 1800 MHz
Memory bandwidth 64 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 PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 74 Mh/s 19 Mh/s
Laptop size medium sized medium sized
Optimus +
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