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Thread: AMD "Piledriver" refresh of Zambezi - info, speculations, test, fans

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  1. #11
    Xtreme Member
    Join Date
    Jan 2011
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    Some interesting slides from domaninhaber video, my thanks goes to del42sa from pctuning.cz forum
    http://img7.rajce.idnes.cz/d0703/5/5...es/Trinity.jpg
    http://img7.rajce.idnes.cz/d0703/5/5...ty_3D_mark.jpg
    http://img7.rajce.idnes.cz/d0703/5/5...ty_PC_Mark.jpg
    http://img7.rajce.idnes.cz/d0703/5/5...ty_Compute.jpg
    http://img7.rajce.idnes.cz/d0703/5/5...al_graphic.jpg
    http://img7.rajce.idnes.cz/d0703/5/5...al_graphic.jpg
    Honestly I don't know what to think, if you look at the IGP performance in FLOPs
    Llano 415 GFLOPs
    Trinity 715 GFLOPs
    Llano theoretical numbers
    5SIMD * 16ALU*5SP*2*600MHz=480GFLOPs
    415GFLOPs/480GFLOPs = 86.5%
    and now Trinity
    715/0.865=827GFLOPs
    That should mean 10SIMDs VLIW4 at 646Mhz.
    Thats impossible, they wouldn't be able to feed it with data, ~half of the TDP would be just for IGP and the performance in 3D mark doesn't match either. It wouldn't be stronger by just 35% but rather 1.8-2x. Even die size would be bigger compared to Llano's, maybe ~270-280mm2.

    edit: my mistake, the FLOPs should be CPU+IGP but even so It doesn't match by a long shot.

    P.S. Undone was faster
    Last edited by TESKATLIPOKA; 11-19-2011 at 02:10 AM.

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