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World's Fastest Computer in the US — Parallax Forums

World's Fastest Computer in the US

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  • Dr_AculaDr_Acula Posts: 5,484
    edited 2012-11-12 20:42
    Titan used the new Tesla K20x accelerators to achieve an energy efficiency of 2,142.77 megaflops per watt (million calculations per second per watt)...

    Interesting figure there. I wonder how that compares with a Propeller, Arm, Z80 etc?
  • CircuitsoftCircuitsoft Posts: 1,166
    edited 2012-11-13 09:18
    Tesla cards are nVidia processors without video output. The floating-point performance is amazing, but I think it has a pretty long instruction pipeline and a large stall/branch penalty. P2 won't have native floating like that, and won't be nearly as power-efficient for that workload. Adapteva's Epiphany-IV would probably out-compute it, but it's hard to say by how much. They claim 50,000 megaflops per watt.
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