RE: Want to Earn $$$ Using the CPU of Your Mining Rigs or Home Computers? Gridcoin [GRC] CPU Mining Revenue in USD! (Up to USD$70/m per CPU for Intel i7!)
You're missing the fact that this is only utilising your CPU. CPUs are often left idle when someone is GPU mining, as most coins cannot be mined effectively with a CPU. Girdcoin 'mining' needs a CPU for many projects due to the high complexity of the operations performed in doing actual research relative to hashing. At USD$70/m you will easily pay for power.
My PC (core i7 [email protected]) at idle = ~90 Watts measured from wall
My PC (core i7 [email protected]) at 100% CPU load on BOINC = ~150 Watts measured from wall
So the marginal energy use of running BOINC 24/7 for a month on my CPU is:
150W - 90W = 60W x 24H x 30D = 43200Wh /1000 = 43.2kWh
Based on my energy cost of £12.2/kWh (16cents US) that monthy cost is:
43.2kWh x 0.122 = £5.27 (roughly $7)
As above I have solar so my real profits are much higher, but even though I only mine in daylight (16 hours a day at the moment) the 60 watts of energy to run my CPU is a no brainer even if I did pay for power.
You're missing the fact that this is only utilising your CPU. CPUs are often left idle when someone is GPU mining, as most coins cannot be mined effectively with a CPU. Girdcoin 'mining' needs a CPU for many projects due to the high complexity of the operations performed in doing actual research relative to hashing. At USD$70/m you will easily pay for power.
But surely the PC runs hot when the CPU is crunching away and thus consuming power?
My PC (core i7 [email protected]) at idle = ~90 Watts measured from wall
My PC (core i7 [email protected]) at 100% CPU load on BOINC = ~150 Watts measured from wall
So the marginal energy use of running BOINC 24/7 for a month on my CPU is:
150W - 90W = 60W x 24H x 30D = 43200Wh /1000 = 43.2kWh
Based on my energy cost of £12.2/kWh (16cents US) that monthy cost is:
43.2kWh x 0.122 = £5.27 (roughly $7)
As above I have solar so my real profits are much higher, but even though I only mine in daylight (16 hours a day at the moment) the 60 watts of energy to run my CPU is a no brainer even if I did pay for power.
I was going to write some words, but your numbers speak louder than any explanation I could offer! =)