last difficulty jump knocked out the s1. the s1's efficiency lasted close to a year. i wonder how long it will take to say bye to the s3's ?
S1 isn't dead yet. Undervolted it can go as low as 1.19 W/GH @ 140GH/s. Places with cheap electricity can still run em fine... Man, I wish I lived in Venezuela, their electricity is so cheap ($0.005/KWH @ unofficial exchange rates) that even operating an ASICMINER blade (7.5w/gh) is still profitable.
Daily revenue of 10GH @ current diff:
5.2¢
Daily power costs of 75W @ unofficial exchange rate:
0.8¢
ASICMINER Blades will be profitable in Venezuala until difficulty crosses 220 billion. Hot damn.
Antminer S1's will be profitable until difficulty is well over a trillion...
I am undervolted and profitable, even if you buy one today you can ROI, most caluclators use difficulty increase at 10% this isn't true were actually only going up 2% this time and probably won't see a 10% increase for a while. If you put it at 5% on the calculators an S1 undervolted will roit in 145 days (at .06 kwh)
This is a very brave assumption to make. We have not seen this small of difficulty increases last that long for a very long time (if ever). I think there is a good chance we will not see huge increases anymore however this is far from a guarantee and will likely turn out to not be true if the price of bitcoin starts to increase dramatically again
You're right on the money!
I find it fascinating that some people can take a single difficulty adjustment of 1% and think its a trend, lol. The adjustment before this one was 16% and a few before that was an adjustment of nearly 21%. If someone sees a trend anywhere near 5%, they're dreaming!