Power supply requirement for two GPUs?

[lucasbytegenius]

Alright, so right now I have a 600 watt Corsair CX power supply. I've got an AMD FX 8320, a hard drive, and a GTX 660 running off of it right now.

However, I'd like to upgrade to a GTX 760 but keep the 660 in an SLI setup or something. Is 600 watts enough to power the whole system with those two GPUs installed? Or do I need to upgrade the PSU as well, and if so, what wattage should I aim for?

 

[voyagerfan99]

You can't SLI a 760 and 660. They need to be the same card in order to do that.

 

[Geoff]

Check out this site, it should give you the answer you need: http://www.extreme.outervision.com/psucalculatorlite.jsp

 

[lucasbytegenius]

Well that changes things. Thanks, going to look into getting a more powerful card to replace my 660 instead.

@Geoff saw that, just needed to make sure.

 

[voyagerfan99]

Could look into a GTX 760Ti or GTX 770.

 

[lucasbytegenius]

Yeah the 770 is what I've got my eyes on, currently deciding between a 2GB or 4GB model.