https://bitcointalk.org/index.php?topic=253596.0
някой ще се пробва ли?
Модератори: ekrem, Moderators
skrubalov написа:Пича го гледам е администратор на сайта... вероятно тези карти вече са изплатени от таксите на миньорите. Видях екстендъри, вярно 16-16, но все пак може и да ги прави по 3 карти.
drhex2c написа:Thanks, I missed the Additional Info tab. Still, I guess it will come down to at least two basic things:
1) Price vs GPU <-- This is where every Scrypt FPGA project has failed so far.
2) Proof of concept video + peer reviewed by a couple of credible individuals.
Let's assume for a sec they have amazing FPGA programmers, and managed to slightly more than double the highest Kh/s to 120 per chip. To attain 1000 Kh they'd need at least 8 Artix 7 Xilinx chips. Let's also assume they managed to get amazing pricing at $125/FPGA (normal price = at least $250). 8x $125 = $1,000. Then add $50 for PCB printing and assembly, $50 for PSU, $50 for Raspberry Pi, $50 for case & LCD screen, $50 worth of RAM (4GB DDR3 - but possibly it needs a heck of a lot more than this) $50 for boxing, assembly and testing and $250 USD for average international shipping. So we're looking at $1550 USD selling price for them to just break even. With 30% profit margin, we're looking at roughly $2000 excluding taxes. Now compare that to how much it costs to achieve this hashing speed with a GPU, and it becomes obvious this is completely non-viable.
Feel free to dispute any of the numbers above. I'd be curious to hear what others have to say.
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