Quote from: aerobatic on December 28, 2013, 09:42:25 PM

would like to know for sure that the die is 81mm²... dies are rarely exactly 9x9 mm... so it'd be nice to know exactly how big it is to at least one decimal place rather than the very rough and unlikely sounding 9x9mm number. e.g.,if it was 9.5x9.5mm that'd be a 90mm² die.

I got that number by combining two different posts.
The first one is a bit scary:
https://bitcointalk.org/index.php?topic=270384.msg2975145#msg2975145

If you know anything about asics, that post may make your heart stop once you notice its written by Hashfast's VP of engineering. Estimating a competitors die size just by looking at the heatspreader... Shocked

that was my first major red flag.

Anyway, the number Amy wrote there is 324mm^2 per "die". Later it was clarified that each chip consists of 4 smaller dies in a single package. Sorry, dont have the link at hand. I just divided 324 by 4. But again this makes you wonder if VP Amy had absolutely no clue what she was talking about, not knowing what a die is, or if they changed this since the above post and initially they were crazy enough to actually shoot for a 300+ mm³ mammoth die. Either should have made potential customers worry.