GeForce 840M vs Radeon HD 7670M

GeForce 840M
Memory: 1024Mb DDR3MOBILE
Release date: 12 Mar 2014
GeForce 840M
Radeon HD 7670M
Memory: 1024Mb DDR3MOBILE
Release date: 17 Feb 2012
Radeon HD 7670M

Summary

Synthetic performance index

  • GeForce 840M
    172%
  • Radeon HD 7670M
    100%

Relative performance

Reasons to consider GeForce 840M

This is a much newer product, it might have better long term support.
Around 72% higher average synthetic performance.
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Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications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 7670M

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

GeForce 840M

HWBench recommends GeForce 840M

The GeForce 840M is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

GeForce 840MRadeon HD 7670M
GPU NameGM108 (N15S-GT)vsThames (Thames XT)
Fab Process28 nmvs40 nm
Die Size0 mm²vs104 mm²
Transistorsunknownvs716 million
Shaders384vs480
Compute Units3vs6
Core clock1029 MHzvs600 MHz
ROPs8vs16
TMUs16vs24

Memory Configuration

GeForce 840MRadeon HD 7670M
Memory TypeDDR3vsDDR3
Bus Width64 bitvs128 bit
Memory Speed1001 MHz
2002 MHz effective
vs900 MHz
1800 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

GeForce 840MRadeon HD 7670M
TDP33 wattsvs20 watts
Release Date12 Mar 2014vs17 Feb 2012

Raw Performance comparison

Pixel Rate

  • GeForce 840M
    8.23 GP/s
  • Radeon HD 7670M
    9.60 GP/s

GigaPixels - higher is better

Texel Rate

  • GeForce 840M
    16.46 GT/s
  • Radeon HD 7670M
    14.40 GT/s

GigaTexels - higher is better

Memory bandwidth

  • GeForce 840M
    16.02 GB/s
  • Radeon HD 7670M
    28.80 GB/s

GB/s - higher is better

Single precision performance

  • GeForce 840M
    790.30 GFLOPs
  • Radeon HD 7670M
    576.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • GeForce 840M
    2430
  • Radeon HD 7670M
    1410

Points (higher is better)

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