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rowan · 06-07-2011, 07:42 PM

Electricity costs more here. Based on current exchange rates I'm paying about $USD0.20/kWh.

My m/b+CPU+RAM+GPU draws around 70W when hashing, so it costs about $USD0.35 per day.

My earlier rough calcs were based on flawed reasoning - each round varies in duration (until someone breaks it), and the reward I receive for being part of it also varies (depends how many others were part of the pool), so I can really only work out average income by actually doing it... there's also the calculation difficulty changing and market value of BTC to consider.

It's been about 12 hours since I got the GPU going, in that time I've earned 0.06392876 BTC: at $18/BTC that's $1.15; at $23/BTC (price just took a big leap on mtgox) it's $1.47. Extrapolate that to 24h and you have $2.30/$2.94. Not quite $4 a day but still effectively profitable... just at pretty pointless levels. I'm doing it more for geek fun rather than to make oodles of $, which is why I'm not building a ridiciulous rig. More fun to spend $60 on a GPU and fiddle with software than spending 5 minutes to buy $60 worth of virtual BTCs...

I was thinking that with all these variations in pools that with a bit of programming you could figure out a regularly updated rank of the best performing pools, and either switch 100% of processing to the #1 rank at the time, or apportion GPU power over multiple pools. I'm sure someone's already done it. Maybe that's why they vary so much from round to round.

06-07-2011, 07:42 PM
rowan Too lazy to set a custom title Join Date: Mar 2002 Location: Australia Posts: 17,393	Electricity costs more here. Based on current exchange rates I'm paying about $USD0.20/kWh. My m/b+CPU+RAM+GPU draws around 70W when hashing, so it costs about $USD0.35 per day. My earlier rough calcs were based on flawed reasoning - each round varies in duration (until someone breaks it), and the reward I receive for being part of it also varies (depends how many others were part of the pool), so I can really only work out average income by actually doing it... there's also the calculation difficulty changing and market value of BTC to consider. It's been about 12 hours since I got the GPU going, in that time I've earned 0.06392876 BTC: at $18/BTC that's $1.15; at $23/BTC (price just took a big leap on mtgox) it's $1.47. Extrapolate that to 24h and you have $2.30/$2.94. Not quite $4 a day but still effectively profitable... just at pretty pointless levels. I'm doing it more for geek fun rather than to make oodles of $, which is why I'm not building a ridiciulous rig. More fun to spend $60 on a GPU and fiddle with software than spending 5 minutes to buy $60 worth of virtual BTCs... I was thinking that with all these variations in pools that with a bit of programming you could figure out a regularly updated rank of the best performing pools, and either switch 100% of processing to the #1 rank at the time, or apportion GPU power over multiple pools. I'm sure someone's already done it. Maybe that's why they vary so much from round to round.