GeForce 920MX vs GeForce GTX 660

GeForce 920MX
Memory: 2048Mb DDR3MOBILE
Release date: 1 Mar 2016
GeForce 920MX
GeForce GTX 660
Memory: 2048Mb GDDR5DESKTOP
Release date: 6 Sep 2012
GeForce GTX 660

Summary

Synthetic performance index

  • GeForce 920MX
    100%
  • GeForce GTX 660
    393%

Relative performance

Reasons to consider GeForce 920MX

124 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 660 .
This is a much newer product, it might have better long term support.
Supports PhysX
Supports G-Sync
Supports ShadowPlay (allows game streaming/recording with minimum performance penalty)
Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications

Reasons to consider GeForce GTX 660

Around 293% higher average synthetic performance.
Supports PhysX
Supports G-Sync
Supports ShadowPlay (allows game streaming/recording with minimum performance penalty)
Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

GeForce GTX 660

HWBench recommends GeForce GTX 660

The GeForce GTX 660 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

GeForce 920MXGeForce GTX 660
GPU NameGM108 (N16V-GMR1-S)vsGK106 (GK106-400-A1)
Fab Process28 nmvs28 nm
Die Size0 mm²vs221 mm²
Transistorsunknownvs2,540 million
Shaders384vs960
Compute Units3vs5
Core clock1072 MHzvs980 MHz
ROPs8vs24
TMUs24vs80

Memory Configuration

GeForce 920MXGeForce GTX 660
Memory TypeDDR3vsGDDR5
Bus Width64 bitvs192 bit
Memory Speed900 MHz
1800 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size2048 Mbvs2048 Mb

Additional details

GeForce 920MXGeForce GTX 660
TDP16 wattsvs140 watts
Release Date1 Mar 2016vs6 Sep 2012

Raw Performance comparison

Pixel Rate

  • GeForce 920MX
    8.58 GP/s
  • GeForce GTX 660
    19.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce 920MX
    25.73 GT/s
  • GeForce GTX 660
    78.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce 920MX
    14.40 GB/s
  • GeForce GTX 660
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce 920MX
    823.30 GFLOPs
  • GeForce GTX 660
    1882.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • GeForce 920MX
    1730
  • GeForce GTX 660
    6800

Points (higher is better)