GeForce 940M vs Radeon HD 7870 GHz Edition

GeForce 940M
Memory: 2048Mb DDR3MOBILE
Release date: 13 Mar 2015
GeForce 940M
Radeon HD 7870 GHz Edition
Memory: 2048Mb GDDR5DESKTOP
Release date: 5 Mar 2012
Radeon HD 7870 GHz Edition

Summary

Reasons to consider GeForce 940M

142 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 7870 GHz Edition .
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)
Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications

Reasons to consider Radeon HD 7870 GHz Edition

Higher theoretical gaming performance, based on specifications.
Supports Direct3D 12 Async Compute
Supports ReLive (allows game streaming/recording with minimum performance penalty)
Supports Mantle
Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Radeon HD 7870 GHz Edition

HWBench recommends Radeon HD 7870 GHz Edition

Based on theoretical specifications.


Specifications

Core Configuration

GeForce 940MRadeon HD 7870 GHz Edition
GPU NameGM108 (N16S-GT-S)vsPitcairn (Pitcairn XT)
Fab Process28 nmvs28 nm
Die Size0 mm²vs212 mm²
Transistorsunknownvs2,800 million
Shaders384vs1280
Compute Units3vs20
Core clock1072 MHzvs1000 MHz
ROPs8vs32
TMUs24vs80

Memory Configuration

GeForce 940MRadeon HD 7870 GHz Edition
Memory TypeDDR3vsGDDR5
Bus Width64 bitvs256 bit
Memory Speed900 MHz
1800 MHz effective
vs1200 MHz
4800 MHz effective
Memory Size2048 Mbvs2048 Mb

Additional details

GeForce 940MRadeon HD 7870 GHz Edition
TDP33 wattsvs175 watts
Release Date13 Mar 2015vs5 Mar 2012

Raw Performance comparison

Pixel Rate

  • GeForce 940M
    8.58 GP/s
  • Radeon HD 7870 GHz Edition
    32.00 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce 940M
    25.73 GT/s
  • Radeon HD 7870 GHz Edition
    80.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce 940M
    14.40 GB/s
  • Radeon HD 7870 GHz Edition
    154.00 GB/s

GB/s - higher is better

Single precision performance

  • GeForce 940M
    823.30 GFLOPs
  • Radeon HD 7870 GHz Edition
    2560.00 GFLOPs

GFLOPs - higher is better