GeForce GTX 660M vs Radeon Pro V340 MxGPU

When choosing between GeForce GTX 660M and Radeon Pro V340 MxGPU, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 660M and Radeon Pro V340 MxGPU.
Radeon Pro V340 MxGPU

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 Pro V340 MxGPU
Power consumption (TDP) 50 Watt 300 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR5 HBM2
Maximum RAM amount 2 GB 16 GB
Display Connectors No outputs No outputs
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  • Radeon Pro V340 MxGPU has 500% more power consumption, than GeForce GTX 660M.
  • GeForce GTX 660M is connected by MXM-B (3.0), and Radeon Pro V340 MxGPU uses PCIe 3.0 x16 interface.
  • Radeon Pro V340 MxGPU has 14 GB more memory, than GeForce GTX 660M.
  • GeForce GTX 660M is used in Laptops, and Radeon Pro V340 MxGPU - in Desktops.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon Pro V340 MxGPU - with GCN 5.0.
  • Core clock speed of Radeon Pro V340 MxGPU is 165 MHz higher, than GeForce GTX 660M.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon Pro V340 MxGPU - by 14 nm process technology.
  • Memory clock speed of GeForce GTX 660M and Radeon Pro V340 MxGPU is 2000 MHz.

Game benchmarks

high / 1080p 6−7 14−16
ultra / 1080p 4−5 8−9
QHD / 1440p 0−1 3−4
low / 720p 16−18 30−33
medium / 1080p 8−9 18−20
The average gaming FPS of Radeon Pro V340 MxGPU in Assassin's Creed Odyssey is 100% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M Radeon Pro V340 MxGPU
Architecture Kepler GCN 5.0
Code name N13E-GE Vega 10
Type Laptop Workstation
Release date 22 March 2012 26 August 2018
Pipelines 384 3584
Core clock speed 835 MHz 1000 MHz
Boost Clock 950 MHz 1500 MHz
Transistor count 1,270 million 12,500 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec 336.0
Floating-point performance 729.6 gflops
Length 267 mm
Memory bus width 128bit 2048 Bit
Memory clock speed 2000 MHz 2000 MHz
Memory bandwidth 64.0 GB/s 512.0 GB/s
Shared memory -
DirectX 12 API 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.5 4.6
OpenCL 1.1 2.0
Vulkan 1.1.126 1.1.125
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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