Will i need to upgrade more if get another gtx 780?

Riot401

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Just wondering if i will need to upgrade anything if i were to get another gtx 780 and if it would even be worth it (mostly worried about the cpu and psu)

Here are my specs
GPU: EVGA gtx 780
CPU: AMD fx 8350
MOBO: ASUS M5A99FX PRO R2.0 AM3+
RAM: Corsair Vengeance Pro 16GB
PSU: Corsair RM Series 750 Watt ATX/EPS 80PLUS Gold
Case: Corsair Carbide Series Air 540 Windowed

I don't know much but please feel free to ask me more questions.
(if you come up with an answer i would prefer you to explain why but do as you wish)
 
Solution
Well your CPU will bottleneck two gtx 780's in SLI a little bit, and your PSU is borderline for that chip plus sli gtx780s. You would have to overclock your CPU as well to try to remove some of the bottle neck, but that would require a beefier power supply as well. 850w minimum is what I would recommend.

So the answer is... if you want to get the most out of SLI GTX780s you will need to switch over to Intel honestly. The FX8350 overclocked to 4.4ghz even held back performance of 2 x 7970 in this review/article: http://www.tomshardware.com/reviews/fx-8350-core-i7-3770k-gaming-bottleneck,3407-9.html

From the conclusion: "From now on, we'll need to limit the use of AMD's flagship to systems already bottlenecked by their graphics...
Well your CPU will bottleneck two gtx 780's in SLI a little bit, and your PSU is borderline for that chip plus sli gtx780s. You would have to overclock your CPU as well to try to remove some of the bottle neck, but that would require a beefier power supply as well. 850w minimum is what I would recommend.

So the answer is... if you want to get the most out of SLI GTX780s you will need to switch over to Intel honestly. The FX8350 overclocked to 4.4ghz even held back performance of 2 x 7970 in this review/article: http://www.tomshardware.com/reviews/fx-8350-core-i7-3770k-gaming-bottleneck,3407-9.html

From the conclusion: "From now on, we'll need to limit the use of AMD's flagship to systems already bottlenecked by their graphics cards. A less expensive CPU is more attractive when it isn't affecting performance negatively."
 
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Riot401

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I think i stay with one then, not willing to spend that much on a cpu and have to get a new mobo. Thanks a lot though!