Got the SP20s today. NICE units.
I'm going to give them a few hours to burn in before I start looking at the numbers.
I see why people say that 1.7TH isn't realistic. Mine are steady at 1.55 after an hour with the standard settings. I'll play with those a little later in the day when I have time.
I'll say this though, the QUALITY of the boxes is superior in every way.
This is also where your cost minimization come in. Everything I have read indicates that the last 200GH area really pretty expensive to obtain in terms of power cost. There are multiple SP20 threads, even one that includes efficiency plotted again hashrate. The higher the speed, the higher the $$$/GH.
yes if I recall he has dirt cheap power 4.5 cents so if he gets 770 watts for 1350 and 1000 watts for 1550 even though he is using 230 watts for 200gh he may be better off at 1550gh.
I just ran numbers at :
0.045 cents a kwatts
230 watts for 200 gh
diff of 41.27
btc at 223 usd
he will make .29 cents a day more then if he stays at 770 watts and 1350gh