HWBench.com

    GeForce GT 735M vs GeForce 840M

    GeForce GT 735M
    Memory: 2048Mb DDR3MOBILE
    Release date: 1 Apr 2013
    GeForce GT 735M
    GeForce 840M
    Memory: 1024Mb DDR3MOBILE
    Release date: 12 Mar 2014
    GeForce 840M

    Summary

    Synthetic performance index

    • GeForce GT 735M
      100%
    • GeForce 840M
      134%

    Relative performance

    Reasons to consider GeForce GT 735M

    Supports PhysX
    Supports G-Sync
    Supports ShadowPlay (allows game streaming/recording with minimum performance penalty)
    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

    Reasons to consider GeForce 840M

    This is a much newer product, it might have better long term support.
    Around 34% 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    Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications
    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 GT 735MGeForce 840M
    GPU NameGK208 (N14M-LP)vsGM108 (N15S-GT)
    Fab Process28 nmvs28 nm
    Die Size87 mm²vs0 mm²
    Transistorsunknownvsunknown
    Shaders384vs384
    Compute Units2vs3
    Core clock575 MHzvs1029 MHz
    ROPs8vs8
    TMUs16vs16

    Memory Configuration

    GeForce GT 735MGeForce 840M
    Memory TypeDDR3vsDDR3
    Bus Width64 bitvs64 bit
    Memory Speed900 MHz
    1800 MHz effective    		vs1001 MHz
    2002 MHz effective
    Memory Size2048 Mbvs1024 Mb

    Additional details

    GeForce GT 735MGeForce 840M
    TDP33 wattsvs33 watts
    Release Date1 Apr 2013vs12 Mar 2014

    Raw Performance comparison

    Pixel Rate

    • GeForce GT 735M
      4.60 GP/s
    • GeForce 840M
      8.23 GP/s

    GigaPixels - higher is better

    Texel Rate

    • GeForce GT 735M
      9.20 GT/s
    • GeForce 840M
      16.46 GT/s

    GigaTexels - higher is better

    Memory bandwidth

    • GeForce GT 735M
      14.40 GB/s
    • GeForce 840M
      16.02 GB/s

    GB/s - higher is better

    Single precision performance

    • GeForce GT 735M
      441.60 GFLOPs
    • GeForce 840M
      790.30 GFLOPs

    GFLOPs - higher is better

    Synthetic benchmarks

    3DMark 11

    • GeForce GT 735M
      1810
    • GeForce 840M
      2430

    Points (higher is better)

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