GeForce GTX 780M vs GeForce GTX 660

GeForce GTX 780M
Memory: 4096Mb GDDR5MOBILE
Release date: 11 May 2013
GeForce GTX 780M
GeForce GTX 660
Memory: 2048Mb GDDR5DESKTOP
Release date: 6 Sep 2012
GeForce GTX 660

Summary

Synthetic performance index

  • GeForce GTX 780M
    111%
  • GeForce GTX 660
    100%

Relative performance

Reasons to consider GeForce GTX 780M

Around 11% 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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 780M

HWBench recommends GeForce GTX 780M

The GeForce GTX 780M is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

GeForce GTX 780MGeForce GTX 660
GPU NameGK104 (N14E-GTX-A2)vsGK106 (GK106-400-A1)
Fab Process28 nmvs28 nm
Die Size294 mm²vs221 mm²
Transistors3,540 millionvs2,540 million
Shaders1536vs960
Compute Units8vs5
Core clock771 MHzvs980 MHz
ROPs32vs24
TMUs128vs80

Memory Configuration

GeForce GTX 780MGeForce GTX 660
Memory TypeGDDR5vsGDDR5
Bus Width256 bitvs192 bit
Memory Speed1250 MHz
5000 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size4096 Mbvs2048 Mb

Additional details

GeForce GTX 780MGeForce GTX 660
TDP122 wattsvs140 watts
Release Date11 May 2013vs6 Sep 2012

Raw Performance comparison

Pixel Rate

  • GeForce GTX 780M
    24.67 GP/s
  • GeForce GTX 660
    19.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GTX 780M
    98.70 GT/s
  • GeForce GTX 660
    78.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GTX 780M
    160.00 GB/s
  • GeForce GTX 660
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GTX 780M
    2368.50 GFLOPs
  • GeForce GTX 660
    1882.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • GeForce GTX 780M
    7600
  • GeForce GTX 660
    6800

Points (higher is better)