Can we please get this moved to FPGA section ?
Thank you !
He already posted here, that's the beauty of bitcoin discussions, once they're posted, they stay, even if the OP made a mistake, too bad, no chargebacks. The best we can offer is to answer his comments for 10 pages instead of 1.
OP: The BFL is the absolute best bang for you buck in the FPGA realm ATM. It's awesome. I'm running 1, and have more that were (supposed) to be delivered today, however the BFL timetable will add another 4 weeks at least.
The main reason you'll want to consider a BFL is power, heat, space, all minimal compared to GPU farms.
As far as ROI is concerned: $630 BFL Single: 830MH, current rate = ~16BT/month.
$475 7970 GPU Now @ 650MH = ~13BTC / mo x 3 months x $5 = $195
So by delivery, you're now at $280 cost @ 650MH/s vs. $630 cost @ 830MH/s, a $350 premium which will take ~4 months hashing the BFL to make it even towards the GPU (assuming diffculty and prices remain the same). Power savings isn't a whole lot to write home about in 4 months.
In my case, space, power and heat are not a factor, thus GPU is the clear choice for me, however, I'm nearing max capacity and plan on using my remaining AMPS to power FPGAs. Hence the BFL on order, but in the mean time, I've had my 7970's hashing away for 6 weeks waiting for the BFL to arrive.
GPU resale value is pretty good, FPGA resale value is better right now (I'd image you could sell the BFL single for a premium to those wanting it immediately) however beyond bitcoins, the value may be naught. But keep in mind, that would mean your confidence in bitcoin is low, if BTC stay firm, there will definitely be a resale value for quite a while. Also keep in mind that while 4 months of Power isn't huge, 24 or 36 months of Power really starts to add up.