GeForce GT 545 vs GeForce GTX 660

GeForce GT 545
Memory: 1536Mb DDR3DESKTOP
Release date: 14 May 2011
GeForce GT 545
GeForce GTX 660
Memory: 2048Mb GDDR5DESKTOP
Release date: 6 Sep 2012
GeForce GTX 660

Summary

Reasons to consider GeForce GT 545

70 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 660 .
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Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications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.
Higher theoretical gaming performance, based on specifications.
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GT 545GeForce GTX 660
GPU NameGF116 (GF116-400-A1)vsGK106 (GK106-400-A1)
Fab Process40 nmvs28 nm
Die Size238 mm²vs221 mm²
Transistors1,170 millionvs2,540 million
Shaders144vs960
Compute Units3vs5
Core clock720 MHzvs980 MHz
ROPs16vs24
TMUs24vs80

Memory Configuration

GeForce GT 545GeForce GTX 660
Memory TypeDDR3vsGDDR5
Bus Width192 bitvs192 bit
Memory Speed800 MHz
1600 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size1536 Mbvs2048 Mb

Additional details

GeForce GT 545GeForce GTX 660
TDP70 wattsvs140 watts
Release Date14 May 2011vs6 Sep 2012

Raw Performance comparison

Pixel Rate

  • GeForce GT 545
    4.32 GP/s
  • GeForce GTX 660
    19.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 545
    17.30 GT/s
  • GeForce GTX 660
    78.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 545
    38.40 GB/s
  • GeForce GTX 660
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 545
    414.70 GFLOPs
  • GeForce GTX 660
    1882.00 GFLOPs

GFLOPs - higher is better