3930k overclock

Merry Christmas everyone,

i have a question regarding a recent overclock i just done, please find below my system specs

corsair tx750 psu
asus rampage iv extreme
intel 2011 3930k @ 3.2ghz (overclocked to 4.0ghz)
6gb corsair dominator gt ddr3 ram @2000mhz (overclocked to 2200mhz)
asus gtx 690
corsair neutron gtx ssd 2 x 240gb

Windows 7 ultimate 64bit.

now thats out of the way, my question is i have overclocked my cpu to 4.0ghz from 3.2ghz and also my ram from 2000mhz to 2200mhz. now especially my cpu i thought that me overclocking it an extra 800mhz i would see quite an improvement in fps but my games increase are as follows far cry 3 an extra 8fps, battlefield 3 extra 4fps, crysis 2 extra 4fps, guild wars 2 an extra 2 and just cause 2 minus 1fps.

is that normal as i was expecting to see better results since an extra 800mhz and also the ram running 200mhz faster i would also like to add that i overclocked my cpu using cpu level up via bios (since im not used to overclocking and i dont know where to find info on what setting i should change), should i have done it manually and if so would i see better results. I see on some website that some people have better frame rate but mainly their ram is 16gb and is only running at 1600mhz. would i be better off just getting more ram and if so would that increase the performance.

thanks in advanced