GeForce GTX 260 vs GeForce GT 640

GeForce GTX 260
Memory: 896Mb GDDR3DESKTOP
Release date: 16 Jun 2008
GeForce GTX 260
GeForce GT 640
Memory: 2048Mb DDR3DESKTOP
Release date: 5 Jun 2012
GeForce GT 640

Summary

Reasons to consider GeForce GTX 260

Based on an outdated architecture (Nvidia Tesla), there are no performance optimizations for current games and applications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 GT 640

117 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 260 .
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 GT 640

HWBench recommends GeForce GT 640

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GTX 260GeForce GT 640
GPU NameGT200 (G200-100-A2)vsGK107 (GK107-300-A2)
Fab Process65 nmvs28 nm
Die Size576 mm²vs118 mm²
Transistors1,400 millionvs1,270 million
Shaders192vs384
Compute Units8vs2
Core clock576 MHzvs902 MHz
ROPs28vs16
TMUs64vs32

Memory Configuration

GeForce GTX 260GeForce GT 640
Memory TypeGDDR3vsDDR3
Bus Width448 bitvs128 bit
Memory Speed999 MHz
1998 MHz effective
vs891 MHz
1782 MHz effective
Memory Size896 Mbvs2048 Mb

Additional details

GeForce GTX 260GeForce GT 640
TDP182 wattsvs65 watts
Release Date16 Jun 2008vs5 Jun 2012

Raw Performance comparison

Pixel Rate

  • GeForce GTX 260
    16.10 GP/s
  • GeForce GT 640
    7.22 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GTX 260
    36.90 GT/s
  • GeForce GT 640
    28.90 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GTX 260
    112.00 GB/s
  • GeForce GT 640
    28.50 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GTX 260
    476.90 GFLOPs
  • GeForce GT 640
    692.70 GFLOPs

GFLOPs - higher is better