GeForce GT 640 vs GeForce GT 730

GeForce GT 640
Memory: 2048Mb DDR3DESKTOP
Release date: 5 Jun 2012
GeForce GT 640
GeForce GT 730
Memory: 1024Mb DDR3DESKTOP
Release date: 18 Jun 2014
GeForce GT 730

Summary

Reasons to consider GeForce GT 640

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

Reasons to consider GeForce GT 730

This is a much newer product, it might have better long term support.
Supports PhysX
Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications

GeForce GT 640

HWBench recommends GeForce GT 640

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GT 640GeForce GT 730
GPU NameGK107 (GK107-300-A2)vsGF108 (GF108-400-A1)
Fab Process28 nmvs40 nm
Die Size118 mm²vs116 mm²
Transistors1,270 millionvs585 million
Shaders384vs96
Compute Units2vs2
Core clock902 MHzvs700 MHz
ROPs16vs4
TMUs32vs16

Memory Configuration

GeForce GT 640GeForce GT 730
Memory TypeDDR3vsDDR3
Bus Width128 bitvs128 bit
Memory Speed891 MHz
1782 MHz effective
vs900 MHz
1800 MHz effective
Memory Size2048 Mbvs1024 Mb

Additional details

GeForce GT 640GeForce GT 730
TDP65 wattsvs49 watts
Release Date5 Jun 2012vs18 Jun 2014

Raw Performance comparison

Pixel Rate

  • GeForce GT 640
    7.22 GP/s
  • GeForce GT 730
    2.80 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 640
    28.90 GT/s
  • GeForce GT 730
    11.20 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 640
    28.50 GB/s
  • GeForce GT 730
    28.80 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 640
    692.70 GFLOPs
  • GeForce GT 730
    268.80 GFLOPs

GFLOPs - higher is better