Re: HashFast announces specs for new ASIC: 400GH/s

Quote from: DeathAndTaxes on December 13, 2013, 04:16:46 AM

Quote from: jspielberg on December 13, 2013, 03:47:24 AM

So.. we are starting to get some power numbers:
https://hashfast.com/second-tests/

Quote

Weve got two dies up on this. Right now we are clocking it at 700mhz and .84v core voltage. Its doing 248Gh/s on only 2 dies! Half a Golden Nonce.

Consumption is around 300 watts total and 78C die temp.

So... we are looking at ~600W total for around ~500GH? Obviously the 25% extra hashrate is nice, but I thought we were expecting the total power to be under 1J/GH.
I guess that isn't going to happen unless we underclock.

So essentially roughly the same power efficiency as KNC, shipped late and at higher cost.

That is what I was thinking as well... KnC doesn't have MPP... but KnC also shipped when they said they were going to START shipping (well roughly). C'est la vie. Sometimes you eat the bear... sometime the bear eats you.