No, I was suggested nothing under 600 watts and I want to future proof, in case I upgrade later on.Why 600W? Is the rest of your system power hungry?
So if 600 watts is a bit much, then what kind of power supply should i be getting?Most single GPU systems would be fine with 500W. Since CPUs & GPUs are moving so smaller processes their power consumption is not really going up, so I see no reason to buy an oversized PSU. If you're definitely going to run 2 GPUs, that would be the only reason to buy a bigger PSU. (And more often than not, if not purchased right away the 2nd GPU never ends up being added.)