770 Sli vs 780?

[mjenabi2]

I was, still am set on a 780 gtx but with the price drop, im thinking about getting a couple of 770 gtxs which will undoubtedly be faster than 780 for around the same price.

2 questions:

1. can my psu handle it?

thermaltake though power 750 watts. i7 3770 @ 4.8ghz, 2 HDDs, 1 SSD, 16gb ram

2. are there issues with slis?

i hear complaints about crossfire and dual cards with scaling issues etc. basically the main reason im not buying a 7990.

 

[Suarez7]

You might hit VRAM limits with the 770's especially in new games like BF4.

 

[MooMoo444]

The only real issue with SLI these days is noise as you obviously have double that of one card. SLI scaling is very good these days with anywhere between 85% and 95% performance increase.

770 is rated at a 230w card so a 750w PSU will easily take two.

 

[mjenabi2]

The only real issue with SLI these days is noise as you obviously have double that of one card. SLI scaling is very good these days with anywhere between 85% and 95% performance increase.

770 is rated at a 230w card so a 750w PSU will easily take two.

oh God. making my decision much harder to make

 

[mcleish]

Im running 2 780s with a Corsair 850w psu. I suspect youll be fine with 750w, though.