GeForce GTX 970M vs GeForce GTX 660

GeForce GTX 970M
Memory: 6144Mb GDDR5MOBILE
Release date: 7 Oct 2014
GeForce GTX 970M
GeForce GTX 660
Memory: 2048Mb GDDR5DESKTOP
Release date: 6 Sep 2012
GeForce GTX 660

Summary

Synthetic performance index

  • GeForce GTX 970M
    145%
  • GeForce GTX 660
    100%

Relative performance

Reasons to consider GeForce GTX 970M

This is a much newer product, it might have better long term support.
Around 45% 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Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications

Reasons to consider GeForce GTX 660

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 970M

HWBench recommends GeForce GTX 970M

The GeForce GTX 970M is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

GeForce GTX 970MGeForce GTX 660
GPU NameGM204 (N16E-GT-A2)vsGK106 (GK106-400-A1)
Fab Process28 nmvs28 nm
Die Size398 mm²vs221 mm²
Transistors5,200 millionvs2,540 million
Shaders1280vs960
Compute Units10vs5
Core clock1038 MHzvs980 MHz
ROPs48vs24
TMUs80vs80

Memory Configuration

GeForce GTX 970MGeForce GTX 660
Memory TypeGDDR5vsGDDR5
Bus Width192 bitvs192 bit
Memory Speed1253 MHz
5012 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size6144 Mbvs2048 Mb

Additional details

GeForce GTX 970MGeForce GTX 660
TDP0 wattsvs140 watts
Release Date7 Oct 2014vs6 Sep 2012

Raw Performance comparison

Pixel Rate

  • GeForce GTX 970M
    49.80 GP/s
  • GeForce GTX 660
    19.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GTX 970M
    83.00 GT/s
  • GeForce GTX 660
    78.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GTX 970M
    120.30 GB/s
  • GeForce GTX 660
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GTX 970M
    2657.30 GFLOPs
  • GeForce GTX 660
    1882.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • GeForce GTX 970M
    9860
  • GeForce GTX 660
    6800

Points (higher is better)