GeForce GT 645 OEM vs GeForce GTX 650 Ti Boost

GeForce GT 645 OEM
Memory: 1024Mb GDDR5DESKTOP
Release date: 24 Apr 2012
GeForce GT 645 OEM
GeForce GTX 650 Ti Boost
Memory: 2048Mb GDDR5DESKTOP
Release date: 26 Mar 2013
GeForce GTX 650 Ti Boost

Summary

Reasons to consider GeForce GT 645 OEM

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Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications

Reasons to consider GeForce GTX 650 Ti Boost

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 650 Ti Boost

HWBench recommends GeForce GTX 650 Ti Boost

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GT 645 OEMGeForce GTX 650 Ti Boost
GPU NameGF114 ()vsGK106 (GK106-240-A1)
Fab Process40 nmvs28 nm
Die Size332 mm²vs221 mm²
Transistors1,950 millionvs2,540 million
Shaders288vs768
Compute Units6vs4
Core clock776 MHzvs980 MHz
ROPs24vs24
TMUs48vs64

Memory Configuration

GeForce GT 645 OEMGeForce GTX 650 Ti Boost
Memory TypeGDDR5vsGDDR5
Bus Width192 bitvs192 bit
Memory Speed957 MHz
3828 MHz effective
vs1502 MHz
6008 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

GeForce GT 645 OEMGeForce GTX 650 Ti Boost
TDP102 wattsvs134 watts
Release Date24 Apr 2012vs26 Mar 2013

Raw Performance comparison

Pixel Rate

  • GeForce GT 645 OEM
    9.31 GP/s
  • GeForce GTX 650 Ti Boost
    15.70 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 645 OEM
    37.20 GT/s
  • GeForce GTX 650 Ti Boost
    62.70 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 645 OEM
    91.90 GB/s
  • GeForce GTX 650 Ti Boost
    144.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 645 OEM
    894.00 GFLOPs
  • GeForce GTX 650 Ti Boost
    1505.00 GFLOPs

GFLOPs - higher is better