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    760M vs 850M

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by imglidinhere, Sep 10, 2014.

  1. imglidinhere

    imglidinhere Notebook Deity

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    Okay, so I looked into this pairing of GPUs and, from what I can see, the 850M is SLOWER in every real gaming session than the 760M. Yet, as far as benches go, the 850M is supposedly the faster card? o.o

    Noteboockcheck shows that most games do better with the 760M than the 850M. Why?
     
    imglidinhere, Sep 10, 2014
    #1
  2. smellon

    smellon Notebook Evangelist

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    That's a good question. The 850M uses new Maxwell cores which might be better optimized than the 760M Kepler cores. Notebookcheck reports that the 850M actually can tie/beat the 765M at times which is pretty impressive. Plus the 850M probably runs cooler and has more OC room.

    A lot of notebookcheck's results show the 850M being faster.
     
    smellon, Sep 11, 2014
    #2
  3. Marksman30k

    Marksman30k Notebook Deity

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    Double check whether those benches use the 850m Maxwell or Kepler. Maxwell should be faster by a large margin.
     
    Marksman30k, Sep 11, 2014
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  4. octiceps

    octiceps Nimrod

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    There doesn't exist a Kepler 850M.
     
    octiceps, Sep 11, 2014
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  5. TomJGX

    TomJGX I HATE BGA!

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    The 850M with DDR3 should beat the 760M whichever way.. I'm surprised with the benchmarks...
     
    TomJGX, Sep 11, 2014
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  6. MooMilk

    MooMilk Notebook Consultant

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    Sure 760M is faster than 850M - it has more pipelines, so esp. when DDR5 vs DDR3 versions compared - prerfomance will be better.
    Nevermind the architecture name - these are basically the same, only higher clocks keep 850M close, just overclock 760M to the same clocks and the difference will become more obvious.
     
    MooMilk, Sep 13, 2014
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  7. Marksman30k

    Marksman30k Notebook Deity

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    Maxwell's core count is deceptive, the Maxwell SMM can achieve 40% more IPC than Kepler. So in actual fact, the 640 Maxwell cores is equivalent to 896 Kepler units. Additionally, Maxwell has a large L2 onboard cache that amplifies the available bandwidth so it isn't as hurt by GDDR3 as it should be. The performance boost influence is hard to tell but there have been some expert opinions that the L2 effectively doubles the Bandwidth.
     
    Marksman30k, Sep 14, 2014
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  8. cdoublejj

    cdoublejj Notebook Deity

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    the 760 is more cores. the fact it's an 8 50 and has fewer cores MAY be why.
     
    cdoublejj, Sep 16, 2014
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  9. jonathanj

    jonathanj Newbie

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    the 850m has less cores, but they are not only shrinked, they also have a new architecture and better memory management.

    The reason that some forums say the 850m is faster, is maybe because of the thermal design, the 760m gets easily too hot and will trottle down, while the 850m can run at full power because it gets less hot.
     
    jonathanj, Nov 18, 2014
    #9