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This board is the cheapest in its class for hashing power, electrical efficiency and warranty the nearest competitor is two of the new x6500 FPGA boards and this works out cheaper.
Two X6500's (without heatsink) would be 800MH/[email protected] and $1130USD.These have heatsinks.
These boards you are peddling are most certainly not the "cheapest in its class". You may want to get your facts straight.
Why which board is cheaper?
edit: if you mean the BFL-Single that only has a six month warranty (this has a minimum of twelve months[maybe two years{I have to clear that up}]) and the BFL-Single operates at twice the wattage. As I said two of the new x6500 is its nearest competitor and this board works out cheaper.
BFL's Single, at current rates and ignoring the reward drop, will take me 9.3 months to pay off at $0.11kWh. Your board, at current rates and ignoring the reward drop would take me 16 months to pay off. So, either box will be out of warranty by the time they pay themselves off. More importantly, for a few bucks more I could get a pair of BFL Singles.
Also, the jump between GPU to general FPGA efficiency is massive. After that we are squabbling over a few bucks a month which at this point are a tiny fraction of the device's overall cost. It takes 98 months for the BFL Single to consume its original price in electricity. For comparison it takes 10 months for a 5830 to consume its original price in electricity. Until you start talking another jump like that then the differences in power between FPGAs are inconsequential for some of us.
The warranty may be two years not sure tho I know its at least twelve months.
