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Title: Determining profitability Post by: NOTAL on April 25, 2011, 04:29:51 AM I'm thinking of building a mining machine, and am trying to figure out if it will be profitable. I've used this: http://lorelei.kaverit.org/cgi/calc.py (http://lorelei.kaverit.org/cgi/calc.py) to calculate the profitability based on today's difficulty and compared with today's BTC/USD rate. But I would really like to see how the [BTC/USD rate]/[difficulty] has changed over time so I can try to guess at future profitability. I can find graphs for each (difficulty here: http://bitcoin.sipa.be/ (http://bitcoin.sipa.be/) and BTC/USD charts from MtGox), but not the raw numbers. I need to find the raw numbers so I can compare them and make a value/difficulty graph.
Does anyone know where I can get the raw data for difficulty and exchange rate? (or better yet, a graph of the ratio that someone has already put together) Thanks Title: Re: Determining profitability Post by: Grinder on April 25, 2011, 07:20:55 AM Raulo has done the job for you here: http://bitcoin.atspace.com/income.html
If it doesn't load you'll have to try later. Title: Re: Determining profitability Post by: proudhon on April 25, 2011, 12:34:32 PM Even without the data you can always calculate what would need to be the case to remain profitable, or to remain as profitable as you were at a given difficulty level. For example, if Bitcoin Charts (http://bitcoincharts.com/markets/) is right about the next difficulty level, then the exchange rate needs to be at least $1.77 for me to be as profitable as I was at the last difficulty at the current exchange rate, and so on.
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