Your worst case scenario is probably at the wall with low grade ( 60% efficiency) PSU. 20W at the chip is close to 0.11J/GH too far from 0.07J/GH
The last time, the numbers provided where correct and this information was provided from real samples tests, not supplier expectations.
Let's just wait for the final chip specs.
Like I quoted directly from their press release, they stated 0.055-0.07 as the 40-55GH range and the J/GH increased from there with a slope of 0.0011. If I'm understanding what that means, then 0.07J/GH is not flat performance but it increases with operating frequency - which makes sense when you consider how everything else has ever worked. If I understand the formula correct based on what they said, then at 140GH the J/Gh is about 0.154, not 0.07, which puts you at over 21W per ASIC.
How I got 20W per chip, why it's far from 0.07J/GH, and other questions like that are actually not very helpful because they're the questions I'm trying to ask myself. I showed my work, and the rationale behind it, and am asking for a sanity check. So, I say again, are your numbers based entirely off about 0.07J/GH flat performance taken from any posted test data, or is it an assumption? Because my numbers are taken from how I interpret some fairly awkwardly handled posted information and I'd like to know (based on facts, not assumptions) if I'm wrong.
