I am testing my new EVGA gtx 960 4gb with different games I have like, Sniper elite V2, 3, Ghost Warrior 2, Sniper elite zombie army 1,2, trilogy, and in all of them I always have about 60 fps or more, but when I play to Far Cry 3 I am always under 25 fps  and I don´t understand why. In menus goes to 31.
 
I´ve tried all different quality options, from low to ultra and always the same frames per second. I don´t know what to do now. I´m running out of ideas.
 
Is it normal?
 
Please, any suggestion?
 
(I will update my cpu, mobo and ram on november)

Try doing #2 & #5 listed here.

Best I could find relating to Far Cry 3, it being in another language.Far Cry 3 is outdated even though the 960 is still around. According to that website (sorry it's in Italian, but it shows the specs they used.)
Use 2x MSAA, Quality ULTRA, Max Buffer per frame 1, SSAO HDAO. See what kind you get.
 http://www.hwupgrade.it/articoli/skvideo/4271/geforce-gtx-960-le-proposte-msi-e-inno3d-al-banco-di-prova_11.html

Try removing Gefore experience, if you already have it.

Another thing I can understand is I can activate V-Sync, I can see the option but is locked, so I can´t change it.

I´ve found the .ini file, but in this game is about saved games.
I´ve tried what you say with the configuration files. They are in my documents, I´ve tried to delete them, but always it´s the same, only about 30 fps.
 
Do you think is because I have an old cpu?
 
I´ve googled a lot , believe me, but still I don´t find the answer for my problem. I´ve found many people have similar problem in this game with fps...weird

stalinx20
Might be your CPU, and that it's not strong enough. Where is your CPU utilization at?

Om that note, when you check look at each CPU core and not the overall total - if even one core is at 90+% utilization then that is likely what is holding back the GPU. Overclocking the GPU and the RAM should help alleviate it if that is the case.

Every time I am more convinced, it´s for my cpu for this game.
 
Really  Minimum system requirements it´s 2.66 GHz Intel Core 2 Duo E6700, but recommended system requirements about cpu is i3-530 @ 2.9 GHz or better.
 
Incluiding ram minimum is 4 gb in win 7, I only have 2 gb.
 
Well, I will update mi cpu, mobo and ram on november, using black friday, and the I will see...Now I must play in this game with 30 fps.
 
Here, I could compare and I can see how fps depending of the system http://gamesystemrequirements.com/game/far-cry-3
Thanks to all

turina3
I´ve chanded my pc, and now I have 60-70 fps in far cry 3
 
At least I can play this game better. New cpu now i5 6600

Was it entirely a cpu bottleneck?

It was entirely and absolutely a cpu bottleneck; another system now but the same video card.
 
I hope this helps anyone