GeForce GT 620M vs GeForce 940M

GeForce GT 620M
Memory: 1024Mb DDR3MOBILE
Release date: 23 Aug 2012
GeForce GT 620M
GeForce 940M
Memory: 2048Mb DDR3MOBILE
Release date: 13 Mar 2015
GeForce 940M

Summary

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Based on an outdated architecture (Nvidia Fermi), there are no performance optimizations for current games and applications.

Reasons to consider GeForce 940M

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).

GeForce 940M

HWBench recommends GeForce 940M

Based on theoretical specifications.



Specifications

Core Configuration

GeForce GT 620MGeForce 940M
GPU NameGF108 (N13P-GLP-A1)vsGM108 (N16S-GT-S)
Fab Process40 nmvs28 nm
Die Size116 mm²vs0 mm²
Transistors585 millionvsunknown
Shaders96vs384
Compute Units2vs3
Core clock660 MHzvs1072 MHz
ROPs4vs8
TMUs16vs24

Memory Configuration

GeForce GT 620MGeForce 940M
Memory TypeDDR3vsDDR3
Bus Width128 bitvs64 bit
Memory Speed900 MHz
1800 MHz effective
vs900 MHz
1800 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

GeForce GT 620MGeForce 940M
TDP15 wattsvs33 watts
Release Date23 Aug 2012vs13 Mar 2015

Raw Performance comparison

Pixel Rate

  • GeForce GT 620M
    2.64 GP/s
  • GeForce 940M
    8.58 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce GT 620M
    10.56 GT/s
  • GeForce 940M
    25.73 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce GT 620M
    28.80 GB/s
  • GeForce 940M
    14.40 GB/s

GB/s - higher is better

Single precision performance

  • GeForce GT 620M
    253.44 GFLOPs
  • GeForce 940M
    823.30 GFLOPs

GFLOPs - higher is better

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