http://thegenesisblock.com/cointerra-and-hashfast-sell-17m-of-bitcoin-miners-open-second-batch-sales/
If Cointerra's 500gh/s chip is slowed down to 300gh/s, it will consume less power and produce less heat and BFL might be able to stick two on the Monarch board after all.
Why would they stick 2 chips when Cointerra is gonna rape them on price?
BFL already can't compete on price with Cointerra, putting 2 chips will cost significantly more so it doesn't make sense.
Price =/= cost. Raw ASIC (based on die space and estimated wafer cost) is on the order of $0.50 per GH. If a company cost was double their competitor would it really matter in the short term?
For the record I don't believe BFL is using a Cointerra chip but cost has nothing to do with it.
Cointerra is selling them a finished chip. Like intel selling AMD a CPU chip so AMD can then compete with intel.
The only reason Cointerra would do this would be if they knew they can dump crappy chips at a hefty premium. Cointerra is cool cause they know this will significantly cut BFL's ability to compete or make any big profits and BFL will do it cause they're desperate to get out a 28nm soon before lawsuits start flying.
So when I say Cointerra will charge double I don't mean double the actual chip cost, I meant Cointerra is likely to charge them double the retail cost (look at what BFL sells their chips for to get an idea) which would kill most of BFL's profits. Profits are always a function of costs, BTW.