Hello I am going to upgrade my video card to a GTX 580 but I have been looking around to see what the needed PSU is to run it, I have found varied answers anywhere from 600W to 750W and while I know 750W will run it I want to make sure my current PSU is not able to run it before purchasing a new one. I will also possibly be upgrading my Monitor this week to a 24 inch HD Monitor. Any Suggestions are more then welcome if there is a better card out there for my money.
Plugged in the specs you listed above & included 5 x 120mm fans & 2 stata hdds & your system will use 487watts with the gtx580
I am not familiar with the Raidmax psu you have, but the customer reviews on Newegg have been really positive & you have the 2x 6+2 connectors to plug in the gtx 580. You should have no issues & good headroom with your current powersupply, unless someone else states otherwise that the Raidmax psu you have is horrible & ex. rated @ 500watts.
March 25, 2012 2:52:24 AM
I agree, the PSU you have should have enough juice to power your PC and leave a little headroom for more (but not much). If you plan to heavily OC the 580 or your cpu, you'll need a new PSU.
However, if you're looking for a power efficient graphics card that can beat the 580 in head to head, consider the new nivida GTX 680 (aka Kepler architecture) cards. They consume, on average, about 50-100 watts less than the 580 (under load) and have enough horse power to beat the 580 in games like Crysis 2, The Witcher 2, Batman Arkham City, BFBC 2, and others. Mind you, all the cards out right now are reference design ones and they cost about $500 bucks (and they're kinda out of stock since they've just been released). But from what I've seen performance wise, it blows the GTX 580, the Radeon 6990, and the GTX 590 out of the water in terms of FPS per Watt. It even beats Radeon's newest 7000 series in FPS and power consumption (though not by much).
If it's within your budget, I'd say consider them; otherwise your 630 watt PSU is capable of running the GTX 580 but it'd be even more capable of running the GTX 680.
Thanks for the help and that site is just what I was looking for but I hadn't found one like it when I searched around, will keep it handy for next time I need to check things like this. Appreciate your help!
I hadn't considered the GTX 680 because I was just trying to make sure my PSU could run the 580 at this point but if it can run the 680 then I will definitely see if I can afford it. Thanks for the suggestion and the help!