GeForce 930MX vs GeForce GT 640M

If you are going to buy a new graphics card and are choosing between GeForce 930MX and GeForce GT 640M, 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 930MX stacks up against GeForce GT 640M, check out specs charts below.

GeForce 930MX and GeForce GT 640M are Laptop Graphics Cards

Note: GeForce 930MX and GeForce GT 640M 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 930MX or GeForce GT 640M here:

Main Specs

  GeForce 930MX GeForce GT 640M
Power consumption (TDP) 17 Watt 32 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3, GDDR5 DDR3\GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GT 640M has 88% more power consumption, than GeForce 930MX.
  • GeForce 930MX is connected by PCIe 3.0 x8, and GeForce GT 640M uses PCIe 3.0 x16 interface.
  • GeForce 930MX and GeForce GT 640M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce 930MX is build with Maxwell architecture, and GeForce GT 640M - with Kepler.
  • GeForce 930MX and GeForce GT 640M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 930MX is 200 MHz higher, than GeForce GT 640M.

Game benchmarks

high / 1080p 4−5 0−1
ultra / 1080p 2−3 0−1
QHD / 1440p 2−3 0−1
low / 720p 14−16 10−12
medium / 1080p 7−8 2−3
The average gaming FPS of GeForce 930MX in Assassin's Creed Odyssey is 83% more, than GeForce GT 640M.

Full Specs

  GeForce 930MX GeForce GT 640M
Architecture Maxwell Kepler
Code name N16S-GMR N13P-GS
Type Laptop Laptop
Release date 10 March 2016 22 March 2012
Pipelines 384 384
Core clock speed 952 MHz
Boost Clock 1020 MHz 645 MHz
Transistor count 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 24.48
Floating-point performance 783.4 gflops 480.0 gflops
Memory bus width 64 Bit 128bit
Memory clock speed 2000 MHz 1800 - 4000 MHz
Memory bandwidth 14.4 GB/s
Shared memory - -
DirectX 12 (11_0) 12 API
Shader Model 5.1 5.1
OpenGL 4.5 4.5
OpenCL 1.2 1.1
Vulkan 1.1.126 1.1.126
CUDA + +
CUDA cores 384
Bus support PCI Express 3.0 PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 18 Mh/s
Laptop size medium sized
Optimus + +
GPU Boost 2.0
GameWorks +
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