GTx 780 SLi weird fps

Bullet1993

Honorable
Jan 31, 2014
21
0
10,520
Greetings,
Pc specs
Amd FX350 4.00Ghz
mobo: ASUS M5A99FX PRO R2.0
Ram: HyperX 2x2GB + corsair (cant see it damn) 2x2Gb (4 bars)
PSu1: 730watts Force(for card one and everything else
Psu2: 400 watt (for card 2)
sound card: Creative X-fi titanium
GPu1: assus gtx 780 direct Cu2
Gpu2:Gainward phantom Gtx 780

Now for the question:
I recently upgraded my pc with a second Gpu and i noticed i get low increase in performance mostly unusual, in the videos im watching people get up to 90% more fps but i get only like 10%
i tried various games and i cant only see a difference in crysis 3 and metro and still not as much as i am expecting from an SLi config. i also checked some scores on the internet for Valley benchmark and people with 2 GTx780's get around 4000 - 5000 scores and i get only 2900 maximum (there was that one time i got 3300) when i test it with a single card it goes to around 2500 score so im definetely sure i got a problem (theres no way im getting only 400 more score)
i asked somewhere else a guy with similar setup and he said he gets twice as many fps in all games he is playing....

Im worried since i dont know where the drawback is..
i just wish its software related..


Thanks in advance lets hope this is going to be fixed soon.
Best Wishes!
 


YEs to both question (i checek multiple times i also disabled the sli multiple times for testing purposes)