as a nubie to sli (2x 980ti classies)I am wondering how much of an impact has sli had on others power bill?I am still waiting for my first bill since using sli and I game at least 5hrs a day every day my main classy boost to 1443 so I just added a +25 to my slower gpu to even them out and I keep them in sli all the time.I am pleased with sli so far, just got that little itch(powerbillpowerbillpower)in the back of my brain as I game away

arestavo
http://www.rapidtables.com/calc/electric/electricity-calculator.htm  

250W (for one card) at 5hrs at 12cents per kilowatt is 54 dollars a year, or 4.50 dollars a month.
 
EDIT: overclocking will add a bit more power consumption.

thanks arestavo for that link