Im wondering if Avalon's contributions are a bit conservative here. In a few articles from TGB, they consider the chips capable of OCing to 400 up from the nominal rating of 282 Mh/s.
Most surprisingly, there is evidence that there were actually 135 boxes in the shipment that arrived for these photographs. This would indicate 593 TH/s at the standard 282 MH/s clock speed, or a monstrous 842 TH/s overclocked to 400 MH/s per chip.
It may be in error to expect every chip OCd, but depending upon your intended use with these figures, you may want to account for some potential of higher rates out of Avalon.
http://thegenesisblock.com/latest-shipment-of-avalon-asics-could-increase-network-hashrate-by-500/http://thegenesisblock.com/800000-avalon-asic-bitcoin-mining-chips-expected-over-next-month/Also, just wanted to say thank you to D&T and the contributors here for this thread and data. This is an extremely valuable roundup of information that I wish I had a month ago. As this is relevant to every miner and prospective miner, Id personally like to see this become a sticky thread. Ive also used some of the data here in a
difficulty projector / profit calculator google doc I just began to share.