GeForce GTX 555 OEM vs GeForce GTX 660

GeForce GTX 555 OEM
Memory: 1024Mb GDDR5DESKTOP
Release date: 14 May 2011
GeForce GTX 555 OEM
GeForce GTX 660
Memory: 2048Mb GDDR5DESKTOP
Release date: 6 Sep 2012
GeForce GTX 660

Summary

Reasons to consider GeForce GTX 555 OEM

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Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 GTX 555 OEMGeForce GTX 660
GPU NameGF114 ()vsGK106 (GK106-400-A1)
Fab Process40 nmvs28 nm
Die Size332 mm²vs221 mm²
Transistors1,950 millionvs2,540 million
Shaders288vs960
Compute Units6vs5
Core clock736 MHzvs980 MHz
ROPs24vs24
TMUs48vs80

Memory Configuration

GeForce GTX 555 OEMGeForce GTX 660
Memory TypeGDDR5vsGDDR5
Bus Width192 bitvs192 bit
Memory Speed957 MHz
3828 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

GeForce GTX 555 OEMGeForce GTX 660
TDP150 wattsvs140 watts
Release Date14 May 2011vs6 Sep 2012

Raw Performance comparison

Pixel Rate

  • GeForce GTX 555 OEM
    8.83 GP/s
  • GeForce GTX 660
    19.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GTX 555 OEM
    35.30 GT/s
  • GeForce GTX 660
    78.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GTX 555 OEM
    91.90 GB/s
  • GeForce GTX 660
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GTX 555 OEM
    847.90 GFLOPs
  • GeForce GTX 660
    1882.00 GFLOPs

GFLOPs - higher is better