I know you see threads like this all the time, but I really just want to reassurance. Here is my rig;
Core i5 3570k
EVGA GTX 670 (not the FTW)
8GB of DDR3-1600 RAM
ASUS P8Z77-V MOBO
Corsair 500R Case
Crucial m4 256Gb
an old 1TB hard drive whose specs I'm not sure of (I could check if it's really necessary)
Xigmatek Aegir CPU Cooler
The PSU I'm thinking of getting is the Enermax Platimax 600W. It's really annoying, because I've heard recommendations ranging from 450w(!) to 850w(!!). What's you guys's opinion?
Nvidia recommends a 500W PSU (with two 6pin PCIe connectors) for systems with a single GTX 670. The 500W number accounts for things like low quality units/units which can't deliver what they claim and/or very power hungry systems.
So people will say that a high quality 450W PSU with two 6pin PCIe connectors is enough for a build with a GTX 670, they are correct.
Other people will say as high as 850W because they probably overestimate the power usage of components, are paranoid when it comes to PSUs, like to have as many upgrade options open as possible, think that the fan on a higher wattage unit will spin slower than on a lower wattage unit (this isn't black and white though), etc.
So 600W from a brand like Enermax is more than enough for a system with a single GTX 670. If you want the option to SLI in the future then it wouldn't hurt to get a 750W unit, especially if you are overclocking.