You did not say whether your 955 was dual or quad core...
If it is dual have you attempted to unlock the other 2 cores on your CPU? I would suggest trying this first, then if you can unlock the cores, try to overclock the cpu to around 3.6 - 3.8 GHz. If you cannot unlock your CPU then I would suggest you upgrade to a quad core like the 980 or even a 1100 and overclock it past 4GHz or as close as you can get.
Most people won't need more than 4GB of ram but its super cheap so why not!.
hey sorry didnt even realise there was a duel core version of my cpu i have the quad core which so far i have not been able to over clock more than 3.7 as it becomes unstable. (probably me doing it wrong not had much experience in this area)
i was debating getting more ram as its so much cheaper now.
what are the 980 and 1100t like to overclock are they more likely to reach higher speeds?