Trying to figure out which ancient GPUs you must be mining with not to make a profit with 0.06 kWh power.
Are you using the old Radeon 6990 to mine?
Hah you're pretty close. I have zero initial investment because precisely that fact, its made with my old gaming cards. HD 6950 1GB and R9 270X 2GB. The R9 270X alone is also not profitable.
I can picture that, the rig I just re-assembled with a mix of HD 7750 and R9 280x and a single 7850 is profitable but not by a lot - even at MY low electric rate.
I suspect it's going to switch over to Dnet RC5-72 work fairly soon if coin prices keep sliding.
Up side - the 7750 and 7850 cards were paid for via Litecoin mining YEARS ago, while the R9 280x were paid for sometime last year early on.