HWBench.com

    GeForce GT 640M LE vs GeForce 920MX

    GeForce GT 640M LE
    Memory: 1024Mb DDR3MOBILE
    Release date: 22 Mar 2012
    GeForce GT 640M LE
    GeForce 920MX
    Memory: 2048Mb DDR3MOBILE
    Release date: 1 Mar 2016
    GeForce 920MX
    You are comparing OEM or variant versions of at least one VGA. Did you mean GeForce GT 640M vs GeForce 920MX instead?

    Summary

    Synthetic performance index

    • GeForce GT 640M LE
      102%
    • GeForce 920MX
      100%

    Relative performance

    Reasons to consider GeForce GT 640M LE

    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    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications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 920MX

    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    Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications

    No clear winner declared

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

    Specifications

    Core Configuration

    GeForce GT 640M LEGeForce 920MX
    GPU NameGK107 (N13P-LP)vsGM108 (N16V-GMR1-S)
    Fab Process28 nmvs28 nm
    Die Size118 mm²vs0 mm²
    Transistors1,270 millionvsunknown
    Shaders384vs384
    Compute Units2vs3
    Core clock500 MHzvs1072 MHz
    ROPs16vs8
    TMUs32vs24

    Memory Configuration

    GeForce GT 640M LEGeForce 920MX
    Memory TypeDDR3vsDDR3
    Bus Width128 bitvs64 bit
    Memory Speed900 MHz
    1800 MHz effective    		vs900 MHz
    1800 MHz effective
    Memory Size1024 Mbvs2048 Mb

    Additional details

    GeForce GT 640M LEGeForce 920MX
    TDP20 wattsvs16 watts
    Release Date22 Mar 2012vs1 Mar 2016

    Raw Performance comparison

    Pixel Rate

    • GeForce GT 640M LE
      4.00 GP/s
    • GeForce 920MX
      8.58 GP/s

    GigaPixels - higher is better

    Texel Rate

    • GeForce GT 640M LE
      16.00 GT/s
    • GeForce 920MX
      25.73 GT/s

    GigaTexels - higher is better

    Memory bandwidth

    • GeForce GT 640M LE
      28.80 GB/s
    • GeForce 920MX
      14.40 GB/s

    GB/s - higher is better

    Single precision performance

    • GeForce GT 640M LE
      384.00 GFLOPs
    • GeForce 920MX
      823.30 GFLOPs

    GFLOPs - higher is better

    Synthetic benchmarks

    3DMark 11

    • GeForce GT 640M LE
      1770
    • GeForce 920MX
      1730

    Points (higher is better)

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