I was referring to things that actually use power. Also I am assuming that a balanced system is being used. For example if your already spending all the money for two gpus I would assume that you would also water cool them for overclock as to extend the lifetime and thus value of the investment. I also assume that you are going to run two high end cards becuase while you can take advantage of two low cards to be a bit better than one top end card this is not the case for every environment. Also I can say that you are pushing that psu close to its limit and run the rick of needing a new psu in the future. Remember to that as you get close to the limit you also decrease in conversion efficiency and as a result waste more money. I have been using 500+w systems for over 5 years. The benefit is that they can still be used and that is why when I needed a new psu for my tv computer I got a 910w so I would be ready for anything down the road.
Yeah you have to consider capacitor aging. But the nice thing about new Technology is we find ways to make things run faster with less and less power consumption.
**Electrolytic capacitor aging. When used heavily or over an extended period of time (1+ years) a power supply will slowly lose some of its initial wattage capacity. We recommend you add 10-20% if you plan to keep your PSU for more than 1 year, or 20-30% for 24/7 usage and 1+ years.
The people paying for 1000w psu and greater I find silly. My current system psu recommended wattage is 357w and 464w with 30% Cap aging. But will jump close to 700w if I can ever find good price for a ATI 4850x2 to add to my existing 1 4850. So plenty of head room is always nice and thats why I got the corsair 750 PSU
PSU Calculator
Last edited by mag36; 04-04-2010 at 11:56 AM.
to anyone looking for a cheap PC upgrade
http://www.newegg.com/Product/Produc...-824-_-Product
a 4850 for $80