Avalon gen1 is 110nm. The (new) Avalon gen2 is 55nm. KnCMiner is the only competitor who has 28nm chips, but their chips are merely 1000 Mhash/Joule, which is

Avalon gen1 is 110nm. The (new) Avalon gen2 is 55nm. KnCMiner is the only competitor who has 28nm chips, but their chips are merely 1000 Mhash/Joule, which is a power efficiency pretty close to Avalon gen2: 730 Mhash/Joule.