GeForce 8400 GS Rev. 3 vs GeForce GTX 660

GeForce 8400 GS Rev. 3
Memory: 512Mb DDR2DESKTOP
Release date: 12 Jul 2010
GeForce 8400 GS Rev. 3
GeForce GTX 660
Memory: 2048Mb GDDR5DESKTOP
Release date: 6 Sep 2012
GeForce GTX 660

Summary

Reasons to consider GeForce 8400 GS Rev. 3

115 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 660 .
Based on an outdated architecture (Nvidia Tesla), there are no performance optimizations for current games and applications
PhysX support, however PhysX performance on newest games may be poor

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 8400 GS Rev. 3GeForce GTX 660
GPU NameGT218 (8400GS-225-B1)vsGK106 (GK106-400-A1)
Fab Process40 nmvs28 nm
Die Size57 mm²vs221 mm²
Transistors260 millionvs2,540 million
Shaders16vs960
Compute Units2vs5
Core clock520 MHzvs980 MHz
ROPs4vs24
TMUs8vs80

Memory Configuration

GeForce 8400 GS Rev. 3GeForce GTX 660
Memory TypeDDR2vsGDDR5
Bus Width64 bitvs192 bit
Memory Speed400 MHz
800 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size512 Mbvs2048 Mb

Additional details

GeForce 8400 GS Rev. 3GeForce GTX 660
TDP25 wattsvs140 watts
Release Date12 Jul 2010vs6 Sep 2012

Raw Performance comparison

Pixel Rate

  • GeForce 8400 GS Rev. 3
    2.08 GP/s
  • GeForce GTX 660
    19.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce 8400 GS Rev. 3
    4.16 GT/s
  • GeForce GTX 660
    78.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce 8400 GS Rev. 3
    6.40 GB/s
  • GeForce GTX 660
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce 8400 GS Rev. 3
    39.36 GFLOPs
  • GeForce GTX 660
    1882.00 GFLOPs

GFLOPs - higher is better