GeForce 840M vs GeForce 940MX DDR3

GeForce 840M
Memory: 1024Mb DDR3MOBILE
Release date: 12 Mar 2014
GeForce 840M
GeForce 940MX DDR3
Memory: 2048Mb DDR3MOBILE
Release date: 1 Jan 2016
GeForce 940MX DDR3
You are comparing OEM or variant versions of at least one VGA. Did you mean GeForce 840M vs GeForce 940MX instead?

Summary

Synthetic performance index

  • GeForce 840M
    100%
  • GeForce 940MX DDR3
    100%

Relative performance

Reasons to consider GeForce 840M

Supports PhysX.
Supports G-Sync.
Supports ShadowPlay (allows game streaming/recording with minimum performance penalty).

Reasons to consider GeForce 940MX DDR3

This is a much newer product, it might have better long term support.
Supports PhysX.
Supports G-Sync.
Supports ShadowPlay (allows game streaming/recording with minimum performance penalty).

No clear winner declared

We have no data to declare a winner at this time.


Specifications

Core Configuration

GeForce 840MGeForce 940MX DDR3
GPU NameGM108 (N15S-GT)vsGM108 (N16S-GTR-S)
Fab Process28 nmvs28 nm
Die Size0 mm²vs0 mm²
Transistorsunknownvsunknown
Shaders384vs384
Compute Units3vs3
Core clock1029 MHzvs1122 MHz
ROPs8vs8
TMUs16vs24

Memory Configuration

GeForce 840MGeForce 940MX DDR3
Memory TypeDDR3vsDDR3
Bus Width64 bitvs64 bit
Memory Speed1001 MHz
2002 MHz effective
vs1001 MHz
2002 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

GeForce 840MGeForce 940MX DDR3
TDP33 wattsvs23 watts
Release Date12 Mar 2014vs1 Jan 2016

Raw Performance comparison

Pixel Rate

  • GeForce 840M
    8.23 GP/s
  • GeForce 940MX DDR3
    8.98 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce 840M
    16.46 GT/s
  • GeForce 940MX DDR3
    26.93 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce 840M
    16.02 GB/s
  • GeForce 940MX DDR3
    16.02 GB/s

GB/s - higher is better

Single precision performance

  • GeForce 840M
    790.30 GFLOPs
  • GeForce 940MX DDR3
    861.70 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • GeForce 840M
    2430
  • GeForce 940MX DDR3
    2450

Points (higher is better)

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