GeForce 840M vs Radeon HD 7670M

GeForce 840M
Memory: 1024Mb DDR3 MOBILE
Release date: 12 Mar 2014
GeForce 840M
Radeon HD 7670M
Memory: 1024Mb DDR3 MOBILE
Release date: 17 Feb 2012
Radeon HD 7670M


Synthetic performance index

  • GeForce 840M
  • Radeon HD 7670M

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).

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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.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


Core Configuration

GeForce 840M Radeon HD 7670M
GPU Name GM108 (N15S-GT) vs Thames (Thames XT)
Fab Process 28 nm vs 40 nm
Die Size 0 mm² vs 104 mm²
Transistors unknown vs 716 million
Shaders 384 vs 480
Compute Units 3 vs 6
Core clock 1029 MHz vs 600 MHz
ROPs 8 vs 16
TMUs 16 vs 24

Memory Configuration

GeForce 840M Radeon HD 7670M
Memory Type DDR3 vs DDR3
Bus Width 64 bit vs 128 bit
Memory Speed 1001 MHz
2002 MHz effective
vs 900 MHz
1800 MHz effective
Memory Size 1024 Mb vs 1024 Mb

Additional details

GeForce 840M Radeon HD 7670M
TDP 33 watts vs 20 watts
Release Date 12 Mar 2014 vs 17 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
  • Radeon HD 7670M

Points (higher is better)

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