Originally Posted by Alanim
I don't know anything about monitors, but I'm pretty confident you'll be able to get what you want on budget, and I'll try and help you get your moneys worth.
Twocables, does SLI 780s on a(Potentially) overclocked i7-4770K require a solid 750w or a 850w PSU?
*edit* I also assume $1000 is enough for a monitor at 1440p(I assume they're cheaper then that, but eh better to undershoot then overshoot)
650W at minimum, if it's a good one, if the 4770K is heavily overclocked.
With two GTX 780s under full load in their system, their PSU pulled 544W from the wall outlet. Their CPU was idling, so I have to add up to 150W for a heavily-overclocked 4770K. So, this means that if you were to somehow get the 4770K to like 5 GHz and you were to somehow get it to be under full load at the same time as both of the GTX 780s (not easy unless you're using like Furmark and Intel Burn Test at their highest settings - even then, I don't know if you could do it), then that would make the PSU pull about 694W from the wall. Let's round that up to 700W. This means that if the PSU is 90% efficient while pulling 700W from the wall outlet, then the computer is pulling about 630W from the PSU. However, the gaming power draw would never exceed 600W. So, this is why a good quality-made 650W PSU would be the minimum if the 4770K is heavily overclocked.
So, if the 4770K is only overclocked to like 4.5 GHz, then a good 650W PSU would still be the minimum, but the gaming power consumption would likely stay below ~575W, possibly 550.