Do I really need to upgrade?

[Supraphil]

My pc is aging a little and I'm just about to upgrade my sons PC from an AMD to Ivybridge. He mostly games but I do a mixture of things less gaming but still do the odd online BF3 etc.

My AMD 955BE C3 is clocked at 4.2ghz with 2750 NB and 1600 Ram on an MSI 790FX GD70 board with an MSI Hawk 6870

It plays BF3 online at medium with a solid 60 FPS, higher with vsync off. it can play on high but is slightly lower and dips occasionally.

So I could go Ivybridge, or I could go Piledriver but I've never seen a benchmark showing an overclocked 955 against piledriver etc? Would it be much faster? at stock I see it would.

Obviously Ivybridge would be better but I kind of like backing the underdog and if the performance is fine, so be it.

Opinions?

 

[Supraphil]

I did think about xfire on the 6870 but couldnt find one the same, I know I can mix them but prefered to get one the same. I heard a bit about bottlenecking so wasnt sure if I could use a 7950 to its full ability.

That aside I guess the question is, would I see a big improvement over my overclocked CPU, going to a piledriver? I would have to change the MB too so Ivy keeps ringing a bell in my mind. But in all apps in Windows my PC flies... do I... dont I lol