HWBench.com

    GeForce GTX 680M vs GeForce GTX 850M

    GeForce GTX 680M
    Memory: 4096Mb GDDR5MOBILE
    Release date: 4 Jun 2012
    GeForce GTX 680M
    GeForce GTX 850M
    Memory: 2048Mb DDR3MOBILE
    Release date: 12 Mar 2014
    GeForce GTX 850M

    Summary

    Synthetic performance index

    • GeForce GTX 680M
      147%
    • GeForce GTX 850M
      100%

    Relative performance

    Reasons to consider GeForce GTX 680M

    Around 47% 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    Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

    Reasons to consider GeForce GTX 850M

    55 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the GeForce GTX 680M .
    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    Based on an outdated architecture (Nvidia Maxwell), there may be no performance optimizations for current games and applications
    GeForce GTX 680M

    HWBench recommends GeForce GTX 680M

    The GeForce GTX 680M is the better performing card based on the synthetic benchmarks used (1 benchmarks).

    Specifications

    Core Configuration

    GeForce GTX 680MGeForce GTX 850M
    GPU NameGK104 (N13E-GTX-A2)vsGM107 (N15P-GT-A1)
    Fab Process28 nmvs28 nm
    Die Size294 mm²vs148 mm²
    Transistors3,540 millionvs1,870 million
    Shaders1344vs640
    Compute Units7vs5
    Core clock719 MHzvs902 MHz
    ROPs32vs16
    TMUs112vs40

    Memory Configuration

    GeForce GTX 680MGeForce GTX 850M
    Memory TypeGDDR5vsDDR3
    Bus Width256 bitvs128 bit
    Memory Speed900 MHz
    3600 MHz effective    		vs1001 MHz
    2002 MHz effective
    Memory Size4096 Mbvs2048 Mb

    Additional details

    GeForce GTX 680MGeForce GTX 850M
    TDP100 wattsvs45 watts
    Release Date4 Jun 2012vs12 Mar 2014

    Raw Performance comparison

    Pixel Rate

    • GeForce GTX 680M
      20.13 GP/s
    • GeForce GTX 850M
      14.43 GP/s

    GigaPixels - higher is better

    Texel Rate

    • GeForce GTX 680M
      80.50 GT/s
    • GeForce GTX 850M
      36.10 GT/s

    GigaTexels - higher is better

    Memory bandwidth

    • GeForce GTX 680M
      115.20 GB/s
    • GeForce GTX 850M
      32.00 GB/s

    GB/s - higher is better

    Single precision performance

    • GeForce GTX 680M
      1932.70 GFLOPs
    • GeForce GTX 850M
      1154.60 GFLOPs

    GFLOPs - higher is better

    Synthetic benchmarks

    3DMark 11

    • GeForce GTX 680M
      6500
    • GeForce GTX 850M
      4420

    Points (higher is better)

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