GeForce GT 745A vs GeForce GTX 675MX

If you are going to buy a new graphics card and are choosing between GeForce GT 745A and GeForce GTX 675MX, 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 745A stacks up against GeForce GTX 675MX, check out specs charts below.

GeForce GTX 675MX is a Laptop Graphics Card

Note: GeForce GTX 675MX 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 GTX 675MX here:

Main Specs

  GeForce GT 745A GeForce GTX 675MX
Power consumption (TDP) 33 Watt 100 Watt
Interface PCIe 3.0 x16 MXM-B (3.0)
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 675MX has 203% more power consumption, than GeForce GT 745A.
  • GeForce GT 745A is connected by PCIe 3.0 x16, and GeForce GTX 675MX uses MXM-B (3.0) interface.
  • GeForce GT 745A and GeForce GTX 675MX have maximum RAM of 2 GB.
  • GeForce GT 745A is used in Desktops, and GeForce GTX 675MX - in Laptops.
  • GeForce GT 745A and GeForce GTX 675MX are build with Kepler architecture.
  • Core clock speed of GeForce GT 745A is 237 MHz higher, than GeForce GTX 675MX.
  • GeForce GT 745A and GeForce GTX 675MX are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 745A and GeForce GTX 675MX is 1800 MHz.

Game benchmarks

high / 1080p 2−3 9−10
ultra / 1080p 0−1 5−6
QHD / 1440p 0−1 0−1
low / 720p 12−14 21−24
medium / 1080p 4−5 12−14
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 150% more, than GeForce GT 745A.

Full Specs

  GeForce GT 745A GeForce GTX 675MX
Architecture Kepler Kepler
Code name GK107 N13E-GSR
Type Desktop Laptop
Release date 26 August 2013 1 October 2012
Pipelines 384 960
Core clock speed 837 MHz 600 MHz
Boost Clock 915 MHz
Transistor count 1,270 million 3,540 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 29.28 48.0 billion/sec
Floating-point performance 642.8 gflops 1,256 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 1800 MHz 1800 MHz
Memory bandwidth 28.8 GB/s 115.2 GB/s
Shared memory -
DirectX 12 (11_0) 12 API
Shader Model 5.1 5.1
OpenGL 4.6 4.5
OpenCL 1.2 1.1
Vulkan 1.1.126 1.1.126
CUDA 3.0 +
CUDA cores 960
Bus support PCI Express 2.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 26 Mh/s 63 Mh/s
Laptop size large
Optimus +
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