GeForce GTX 560 Ti X2 vs GeForce GTX 660

GeForce GTX 560 Ti X2
Memory: 1024Mb GDDR5DESKTOP
Release date: 25 Jan 2011
GeForce GTX 560 Ti X2
GeForce GTX 660
Memory: 2048Mb GDDR5DESKTOP
Release date: 6 Sep 2012
GeForce GTX 660

Summary

Reasons to consider GeForce GTX 560 Ti X2

Supports PhysX
Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

No clear winner declared

We have no data to declare a winner at this time.


Specifications

Core Configuration

GeForce GTX 560 Ti X2GeForce GTX 660
GPU NameGF114 (GF114-400-A1)vsGK106 (GK106-400-A1)
Fab Process40 nmvs28 nm
Die Size332 mm²vs221 mm²
Transistors1,950 millionvs2,540 million
Shaders384vs960
Compute Units8vs5
Core clock850 MHzvs980 MHz
ROPs32vs24
TMUs64vs80

Memory Configuration

GeForce GTX 560 Ti X2GeForce GTX 660
Memory TypeGDDR5vsGDDR5
Bus Width256 bit x2vs192 bit
Memory Speed1002 MHz
4008 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

GeForce GTX 560 Ti X2GeForce GTX 660
TDP170 wattsvs140 watts
Release Date25 Jan 2011vs6 Sep 2012

Raw Performance comparison

Pixel Rate

  • GeForce GTX 560 Ti X2
    27.20 GP/s
  • GeForce GTX 660
    19.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GTX 560 Ti X2
    108.80 GT/s
  • GeForce GTX 660
    78.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GTX 560 Ti X2
    256.00 GB/s
  • GeForce GTX 660
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GTX 560 Ti X2
    2612.00 GFLOPs
  • GeForce GTX 660
    1882.00 GFLOPs

GFLOPs - higher is better