2011年6月23日星期四

CPU mining - revenue vs. costs

I am interested in, do you use your CPUs for mining? Do you mind the additional energy costs?
Does CPU mining pay off for you at the end?

I am using my GPU for mining and was using the CPU as well as a second miner.
After considering all variables and calculating the ROI I stopped CPU mining.

Let me explain my calculations:

My i72600K @4.6GHz produces 23.3 MHash/sec while the system consumes 110 Watts energy in addition (no GPU mining). This means, with a difficulty of 877226 you need to let it run for 5 years and 46 days to get a Block. Breaking this down with a conversion rate of $15/BTC you end up at $0.40 Cents/day (or $12.29/month).
Using my energy costs ($0.25/kWh) I spend $0.66/day for the additional energy. This makes a profit of minus $0.26/day (or loss of $7.89/month)

That's why I stopped CPU mining, because for me (who I do have to pay for my energy) it's a loss at the end of the day.

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