GeForce GT 640M Mac Edition vs GeForce GTX 960A

GeForce GT 640M Mac Edition
Memory: 512Mb GDDR5MOBILE
Release date: 3 Feb 2013
GeForce GT 640M Mac Edition
GeForce GTX 960A
Memory: 2048Mb GDDR5MOBILE
Release date: 13 Mar 2015
GeForce GTX 960A
You are comparing OEM or variant versions of at least one VGA. Did you mean GeForce GT 640M vs GeForce GTX 960A instead?

Summary

Reasons to consider GeForce GT 640M Mac Edition

43 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 960A .
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Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 GTX 960A

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Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications

GeForce GTX 960A

HWBench recommends GeForce GTX 960A

Based on theoretical specifications.


Specifications

Core Configuration

GeForce GT 640M Mac EditionGeForce GTX 960A
GPU NameGK107 (N13P-GS)vsGM107 (N16P-GX-A1)
Fab Process28 nmvs28 nm
Die Size118 mm²vs148 mm²
Transistors1,270 millionvs1,870 million
Shaders384vs640
Compute Units2vs5
Core clock745 MHzvs1029 MHz
ROPs8vs16
TMUs32vs40

Memory Configuration

GeForce GT 640M Mac EditionGeForce GTX 960A
Memory TypeGDDR5vsGDDR5
Bus Width64 bitvs128 bit
Memory Speed1250 MHz
5000 MHz effective
vs1253 MHz
5012 MHz effective
Memory Size512 Mbvs2048 Mb

Additional details

GeForce GT 640M Mac EditionGeForce GTX 960A
TDP32 wattsvs75 watts
Release Date3 Feb 2013vs13 Mar 2015

Raw Performance comparison

Pixel Rate

  • GeForce GT 640M Mac Edition
    5.96 GP/s
  • GeForce GTX 960A
    16.46 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 640M Mac Edition
    23.84 GT/s
  • GeForce GTX 960A
    41.20 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 640M Mac Edition
    40.00 GB/s
  • GeForce GTX 960A
    80.20 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 640M Mac Edition
    572.20 GFLOPs
  • GeForce GTX 960A
    1317.10 GFLOPs

GFLOPs - higher is better

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