Post
Topic
Board Hardware
Re: BFL announces 28nm 600GH/S blade for $4680
by
mrb
on 18/08/2013, 00:52:13 UTC
Due to double node jump, the max power should be 0.77W/GH (3.1W/GH divided by 4). Based on everything we know from any chip industry (FPGA, CPU, GPU, etc), that should be the ceiling in power-consumption.

Hi Nasser,

Brave of you to dive into the BCT feeding frenzy!

I'm curious about your numbers - 0.77 * 600 = 462W - how come it says 350W on the website?

What he is saying is that just the theoretical power efficiency increase alone gained from 55nm to 28nm should guarantee 0.77 W/GH. But he also said they improved the design (maybe fewer transistors, a "sea-of-hasher" design like bitfury, etc), therefore it should be even lower than 0.77 W/GH.