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Author Topic: Is mining litecoins to get bitcoins worth it  (Read 2043 times)
jamesw
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April 22, 2012, 12:59:18 PM
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I was reading a thread about the exchange rates but I guess im looking for the dummy answer

my gpu gets me bitcoins

my processor sits idle, could get me litecoins which i could trade for bitcoins

anyone done the math considering the power usage of a processor if its worth it (for those of us who pay electricity)

my processor is a core i5 750
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April 22, 2012, 01:13:12 PM
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Will consume ~100-150 watts (assume 125W), net ~20kH/s. Those figures are probably off up to 200% since it isn't listed in the Litecoin Mining Hardware Comparison Wiki page and I'm not familiar with Intel CPUs. Assume you pay $.1/kWh.

30 days @ 20kH/s @ current difficulty will net you ~$1.68 worth of LTC. (30*24*125)/1000=90kWh consumed. 90 * .1 = $9 in electricity consumed per thirty days. $1.68 < $9.00

My figures are probably way off, but even if you didn't pay for electricity, the wear on your CPU probably isn't worth it.


Edit: TDP of i5 750 is 95W. However, on the mining hardware comparison page, it appears the CPUs consume significantly more than the TDP when mining, so the power draw figure's probably roughly accurate (likely closer to 100W than 150W). 2500k performance vs. 750 shows 2500k is ~20% faster on benchmarks which may or may not be relevant. According to wiki page, 2500k hashes @ 31kH/s. 31*.8=24.8kH/s

Soo.... if optimistic, 30 days @ 24.8kH/s @ current difficulty = $2.09 revenues. (30*24*95)/1000=68.4kWh. 68.4*.1 = $6.84 expenses.

Don't mix your coins someone said isn't legal
jamesw
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April 22, 2012, 01:19:42 PM
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thanks for the quick response.  exactly the type of answer i was looking for.
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April 22, 2012, 01:23:56 PM
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Remember that litecoin is no more a cpu only project

It's a GPU coin now, so mining it with cpu is like useless
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April 22, 2012, 01:43:54 PM
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Oh, derp.  No wonder its not worth it on CPU. 

I thought that was the whole idea of the project. 
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April 22, 2012, 01:49:44 PM
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Yes it was, but they managed to get it on GPU

and now GPU is kickassing CPU
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