GeForce GT 650M Mac Edition vs GeForce GT 620M

GeForce GT 650M Mac Edition
Memory: 512Mb GDDR5MOBILE
Release date: 12 Jul 2012
GeForce GT 650M Mac Edition
GeForce GT 620M
Memory: 1024Mb DDR3MOBILE
Release date: 23 Aug 2012
GeForce GT 620M
You are comparing OEM or variant versions of at least one VGA. Did you mean GeForce GT 650M vs GeForce GT 620M instead?

Summary

Reasons to consider GeForce GT 650M Mac Edition

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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 620M

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Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications

GeForce GT 650M Mac Edition

HWBench recommends GeForce GT 650M Mac Edition

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GT 650M Mac EditionGeForce GT 620M
GPU NameGK107 (N13P-GT-W-A2)vsGF108 (N13P-GLP-A1)
Fab Process28 nmvs40 nm
Die Size118 mm²vs116 mm²
Transistors1,270 millionvs585 million
Shaders384vs96
Compute Units2vs2
Core clock900 MHzvs660 MHz
ROPs16vs4
TMUs32vs16

Memory Configuration

GeForce GT 650M Mac EditionGeForce GT 620M
Memory TypeGDDR5vsDDR3
Bus Width128 bitvs128 bit
Memory Speed1254 MHz
5016 MHz effective
vs900 MHz
1800 MHz effective
Memory Size512 Mbvs1024 Mb

Additional details

GeForce GT 650M Mac EditionGeForce GT 620M
TDP45 wattsvs15 watts
Release Date12 Jul 2012vs23 Aug 2012

Raw Performance comparison

Pixel Rate

  • GeForce GT 650M Mac Edition
    7.20 GP/s
  • GeForce GT 620M
    2.64 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 650M Mac Edition
    28.80 GT/s
  • GeForce GT 620M
    10.56 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 650M Mac Edition
    80.30 GB/s
  • GeForce GT 620M
    28.80 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 650M Mac Edition
    691.20 GFLOPs
  • GeForce GT 620M
    253.44 GFLOPs

GFLOPs - higher is better

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