16 chips board from BitFury store only run at 25GHz though, while 16 chips board from burnin run at 40+ GHz at least.
With some experience and solder skill you can tune up "reference design" from shop up to 2.7Gh/s per chip. Or more using extra cooling and mod DC converter.
with just a pencil those 2 reference boards (with 2 dead chips and one half dead) that where hashing at under 20 GH each ... went to around 58 GH ...
and remeber the price for one h-board was at 350 € for the early october delivery ^^
speed:1652
noncerate[GH/s]:58.526 (1.829/chip)
hashrate[GH/s]:58.746
+1
these boards are actually quite interesting/strange to work with. I had a poor performance chip recently start working almost like new (went tfrom effective 0.4GH to 1.7GH). These boards can be modified for 40% gains with good airflow and some small heatsinks (~35Ghash) and annecdotal reports indicate that the chips can handle some heat and the converter presumably has even more headroom.
i would not be surprised if october h-boards were manufactured to run at 30GHash by default
