GeForce 825M vs GeForce GTX 660M

If you are going to buy a new graphics card and are choosing between GeForce 825M and GeForce GTX 660M, 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 825M stacks up against GeForce GTX 660M, check out specs charts below.

GeForce 825M and GeForce GTX 660M are Laptop Graphics Cards

Note: GeForce 825M and GeForce GTX 660M 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 825M or GeForce GTX 660M here:

Main Specs

  GeForce 825M GeForce GTX 660M
Power consumption (TDP) 33 Watt 50 Watt
Interface PCIe 3.0 x8 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
  Check Price Check Price
  • GeForce GTX 660M has 51% more power consumption, than GeForce 825M.
  • GeForce 825M is connected by PCIe 3.0 x8, and GeForce GTX 660M uses MXM-B (3.0) interface.
  • GeForce 825M and GeForce GTX 660M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce 825M and GeForce GTX 660M are build with Kepler architecture.
  • Core clock speed of GeForce 825M is 15 MHz higher, than GeForce GTX 660M.
  • GeForce 825M and GeForce GTX 660M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 660M is 200 MHz higher, than GeForce 825M.

Game benchmarks

high / 1080p 0−1 6−7
ultra / 1080p 4−5
QHD / 1440p 0−1 0−1
low / 720p 2−3 16−18
medium / 1080p 0−1 8−9
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 750% more, than GeForce 825M.

Full Specs

  GeForce 825M GeForce GTX 660M
Architecture Kepler Kepler
Code name GK208 N13E-GE
Type Laptop Laptop
Release date 27 January 2014 22 March 2012
Pipelines 384 384
Core clock speed 850 MHz 835 MHz
Boost Clock 941 MHz 950 MHz
Transistor count 915 million 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 30.11 30.4 billion/sec
Floating-point performance 722.7 gflops 729.6 gflops
Memory bus width 64 Bit 128bit
Memory clock speed 1800 MHz 2000 MHz
Memory bandwidth 14.4 GB/s 64.0 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 + +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 36 Mh/s
Laptop size medium sized large
Optimus + +
  Check Price Check Price