Review: AMD A10-7870K Godavari processor

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Jul 27, 2015.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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    We review Godavari, the new A10-7870K APU from AMD. Initially intended for system-integrators who want to offer a nice APU at a reasonable price. However the 7870K today also will see the retail chann...

    Review: AMD A10-7870K Godavari processor
     
  2. Ryu5uzaku

    Ryu5uzaku Ancient Guru

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    Small boost to iGPU :) Nice review as always. Would recommend this to a budget htpc build.
     
  3. Turanis

    Turanis Maha Guru

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    Unfortunatelly the big problem of Amd Cpu is Single Core performance.
    An old Q9650 3.0 Ghz (2008) with OC,say at FX 8320 3.5GHz (2012) at turbo speed 4.0GHz, will smash all AMd cpu in Single Core Perf.
    So in browsing,office,multimedia enviroment an old 2008 cpu will smash "new" cpus from Amd.Not many apps are optimized for 4-6-8 cores. Sad but true.

    So this A10-7870K (TDP 95W) will be again smashed by an i3 4330 3.5GHz (TDP 54W) in Single Core performance. For low profile and low TDP an i3 its a must.

    I dont find A10-7870K passmark single core,but A10-7850K its almost the same:

    Passmark (Single Core)

    i3 4330 2,031
    A10 7850K 1,578
    FX 8320 1,402
    i3 4360 2,150
    i5 4570 2,068
    i5 3570K 2,012
    FX 6300 - 1,446


    Cinebench R10 32-Bit (Single Core)

    i3 4360 7,369
    A10 7870K 4,051
    i3 4330 6,784
    A10 7850K 4,273
    i5 4690K 7,619
    i5 3570K 6,557
    FX 6300 4,101


    Im shocked how i3 Haswells are so good in Single Core performance.
     
    Last edited: Jul 27, 2015
  4. Twiddles

    Twiddles Maha Guru

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    Well we could do the same in the BIOS... add XXXMHz, tweak the GPU and there you go.

    Funny to see it gets close to the 2500K in some benchmarks.
     

  5. Turanis

    Turanis Maha Guru

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    I get that example with Q9650 sk 775 at same speed to FX 8320 to see how an old architecture perform against some new architecture from Amd.
    Well cant wait to see how Amd Zen will perform. :)
     
  6. boerenlater

    boerenlater Master Guru

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    Hilbert don't you test how much you can oc it?
     
  7. Twiddles

    Twiddles Maha Guru

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    I honestly can't think of a reason why. These CPU's are all exactly the same so any difference you see might as well be silicon quality A.K.A. the "silicon lottery" ;)
     
  8. Fox2232

    Fox2232 Ancient Guru

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    A10-7850K has that 95W TDP limit which prevented it from efficient OC as it simply throttled not once certain temperature been reached, but as it ate certain amount of power.
    In other words, increasing voltage in belief that it improves OC clock and adds stability resulted in increased power consumption and lower performance.
    I would be interested in seeing if AMD tweaked this in A10-7870k, but I do not expect that to happen as entire system in measurement topped at 120W.

    - Would be interesting to do bench at default clock, add 100MHz, bench, add 100MHz bench, ...
    - Then lower voltage a bit and bench at default clock, keep lower voltage, add 100MHz bench, ...
    - And finally doing previous for bit higher voltage

    Then create performance map for purpose of objectively seeing if & how TDP limits this APU.

    If anything Carrizo is impressive part at 12/15/25/35W configurations due to HSA 1.0. A10-7850k is just for little play, I would not find long term purpose for it, tho one can fit it in very small box with like 180~220W PSU for maximum efficency.

    95W w/ OC vs 35W.
    95W w/o OC vs 35W.
    Best of A10-7850k (4.7GHz) vs best of A10-7870k (4.5GHz).
     
    Last edited: Jul 27, 2015
  9. leszy

    leszy Master Guru

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    Very good review.
     
  10. vbetts

    vbetts Don Vincenzo Staff Member

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    APU's overclocking is limited, so best bet for these is to get high speed low timing ram, and boost the gpu and memory clocks up.
     

  11. icedman

    icedman Master Guru

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    what amd has here is an amazing product they just desperately need a die shrink and minor cpu bump to compete.
     
  12. f4nm4n

    f4nm4n Member

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    and a lot of money to push hsa/huma/opencl implementation to apps devs (zzz dreaming zzz)
     

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