GeForce GT 640 vs GeForce GT 730 GDDR5

GeForce GT 640
Memory: 2048Mb DDR3DESKTOP
Release date: 5 Jun 2012
GeForce GT 640
GeForce GT 730 GDDR5
Memory: 1024Mb GDDR5DESKTOP
Release date: 18 Jun 2014
GeForce GT 730 GDDR5

Summary

Synthetic performance index

  • GeForce GT 640
    140%
  • GeForce GT 730 GDDR5
    100%

Relative performance

Reasons to consider GeForce GT 640

Around 40% higher average synthetic performance.
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications.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 GDDR5

This is a much newer product, it might have better long term support.
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications.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

The GeForce GT 640 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

GeForce GT 640GeForce GT 730 GDDR5
GPU NameGK107 (GK107-300-A2)vsGK208 ()
Fab Process28 nmvs28 nm
Die Size118 mm²vs87 mm²
Transistors1,270 millionvsunknown
Shaders384vs384
Compute Units2vs2
Core clock902 MHzvs902 MHz
ROPs16vs8
TMUs32vs16

Memory Configuration

GeForce GT 640GeForce GT 730 GDDR5
Memory TypeDDR3vsGDDR5
Bus Width128 bitvs64 bit
Memory Speed891 MHz
1782 MHz effective
vs1253 MHz
5012 MHz effective
Memory Size2048 Mbvs1024 Mb

Additional details

GeForce GT 640GeForce GT 730 GDDR5
TDP65 wattsvs38 watts
Release Date5 Jun 2012vs18 Jun 2014

Raw Performance comparison

Pixel Rate

  • GeForce GT 640
    7.22 GP/s
  • GeForce GT 730 GDDR5
    7.22 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 640
    28.90 GT/s
  • GeForce GT 730 GDDR5
    14.43 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 640
    28.50 GB/s
  • GeForce GT 730 GDDR5
    40.10 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 640
    692.70 GFLOPs
  • GeForce GT 730 GDDR5
    692.70 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • GeForce GT 640
    2190
  • GeForce GT 730 GDDR5
    1560

Points (higher is better)