750w for GTX 770 SLI?

[tman2damax11]

So I'm really looking forward to my new SLI build that I hope to be purchasing very soon. I've settled on SLI 770, and now I'm stuck on the PSU. Every site recommends at LEAST 850w for SLI 770s, but forum sites say 750w is enough. I've seen sli 780s with an i7 4770k on only an 800w psu with no problem, so only having 50 less watts for sli 770s and an i5 shouldn't be an issue. But I don't want to have problems. Do you guys think this will be enough power? Also I'm asking this because I'm on a budget and I can get a 750w 80+gold psu for only $110, or get a cheap 850w 80+bronze for $140, and I'd rather spend 30 less and get a higher quality and efficient supply. Also here are my general specs:

 

CPU: i5 4670k (Maybe will overclock in the future)

CPU Cooler: Corsair H100i

RAM: 2x4gb DDR3 1600, 1.5V

Motherboard: Gigabyte ATX Z87

Storage: Samsung 120gb SSD, & WD Blue 7200rpm 1TB

Graphics Cards: 2x GTX 770 Nvidia Reference

 

Any suggestions will be greatly appreciated!

[Gauzl]

I think the 750w gold PSU will work fine, being 80+gold certified makes it more efficient so you can get away with a few less watts. I had a 4770K over clocked, 2 GTX 680's, 8GB ram , HDD and SSD and with a full waterloop and never ran into power issues with a 800w 80+gold.

[Keudn]

Shouldn't be an issue, however I would go on pcpartpicker and build the system on there to make sure the total TDP isn't above 700w