GeForce G100 OEM vs GeForce GT 640

GeForce G100 OEM
Memory: 256Mb DDR2DESKTOP
Release date: 10 Mar 2009
GeForce G100 OEM
GeForce GT 640
Memory: 2048Mb DDR3DESKTOP
Release date: 5 Jun 2012
GeForce GT 640

Summary

Reasons to consider GeForce G100 OEM

Based on an outdated architecture (Nvidia Tesla), there are no performance optimizations for current games and applications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

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 G100 OEMGeForce GT 640
GPU NameG98 (G98-700-U2)vsGK107 (GK107-300-A2)
Fab Process65 nmvs28 nm
Die Size86 mm²vs118 mm²
Transistors210 millionvs1,270 million
Shaders8vs384
Compute Units1vs2
Core clock540 MHzvs902 MHz
ROPs4vs16
TMUs8vs32

Memory Configuration

GeForce G100 OEMGeForce GT 640
Memory TypeDDR2vsDDR3
Bus Width64 bitvs128 bit
Memory Speed400 MHz
800 MHz effective
vs891 MHz
1782 MHz effective
Memory Size256 Mbvs2048 Mb

Additional details

GeForce G100 OEMGeForce GT 640
TDP35 wattsvs65 watts
Release Date10 Mar 2009vs5 Jun 2012

Raw Performance comparison

Pixel Rate

  • GeForce G100 OEM
    2.16 GP/s
  • GeForce GT 640
    7.22 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce G100 OEM
    4.32 GT/s
  • GeForce GT 640
    28.90 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce G100 OEM
    6.40 GB/s
  • GeForce GT 640
    28.50 GB/s

GB/s - higher is better

Single precision performance

  • GeForce G100 OEM
    20.80 GFLOPs
  • GeForce GT 640
    692.70 GFLOPs

GFLOPs - higher is better