GeForce GTX 660M vs Radeon R9 A375

If you are going to buy a new graphics card and are choosing between GeForce GTX 660M and Radeon R9 A375, 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 GTX 660M stacks up against Radeon R9 A375, check out specs charts below.

GeForce GTX 660M is a Laptop Graphics Card

Note: GeForce GTX 660M 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 660M here:

Main Specs

  GeForce GTX 660M Radeon R9 A375
Power consumption (TDP) 50 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 660M is connected by MXM-B (3.0), and Radeon R9 A375 uses PCIe 3.0 x16 interface.
  • GeForce GTX 660M and Radeon R9 A375 have maximum RAM of 2 GB.
  • GeForce GTX 660M is used in Laptops, and Radeon R9 A375 - in Desktops.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon R9 A375 - with GCN 1.0.
  • Core clock speed of Radeon R9 A375 is 65 MHz higher, than GeForce GTX 660M.
  • GeForce GTX 660M and Radeon R9 A375 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 660M is 1996 MHz higher, than Radeon R9 A375.

Game benchmarks

high / 1080p 6−7 2−3
ultra / 1080p 4−5 1−2
QHD / 1440p 0−1 0−1
low / 720p 16−18 12−14
medium / 1080p 8−9 4−5
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 80% more, than Radeon R9 A375.

Full Specs

  GeForce GTX 660M Radeon R9 A375
Architecture Kepler GCN 1.0
Code name N13E-GE Venus
Type Laptop Desktop
Release date 22 March 2012 no data
Pipelines 384 640
Core clock speed 835 MHz 900 MHz
Boost Clock 950 MHz 925 MHz
Transistor count 1,270 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 30.4 billion/sec 37.00
Floating-point performance 729.6 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 2000 MHz 4.5 GB/s
Memory bandwidth 64.0 GB/s 72 GB/s
Shared memory -
DirectX 12 API 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan 1.1.126 1.2
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 large
Optimus +
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