Bottlenecking Question

[Juxax]

I'm currently using:-
Asrock Dual SATA 2 mobo
Akasa Paxpower 500w PSU
Geforce 8800GTS
Athlon 64 3200+ running at 2.0Ghz
1.5GB RAM (x2 512's & x2 256's in DC Config)

I'm upgradin my processor to a Athlon X2 3800+ Manchester Oc'd to 2.35Ghz, and I'm ditchin the x2 256 MB of ram, for X2 512. I don't know much about PCs but I know enough that a 64 3200+ Single Core is causing bottlenecks as far as the GPU is concerned, but what other factors are there to consider in the bottlenecking equasion.

Also, I know for the moment, conroe's rule, and that would remove pretty much all the bottleneck, but will that upgrade remove any at all? if so, estimated, enough to make a significant increase?

Running Games like Doom 3, at 1440x900 Resolution, all settings highest, I never seem to go lower then 30 FPS, and thats only 5% of the time, Running Dark Messiah i estimate around 25-30 FPS in the Majority, and less playing S.T.A.L.K.E.R with Full Dynamic Lighting on, I'm not lookin for any definiative answers, just guesses, I'd take the guesses of you guys over my own noobishness any day.

 

[Juxax]

Thanks guys.

I know that the Dual Core won't power games any faster then a Single, but the 2nd prosc would handle things like Anti Virus, and stuff.

I'm hoping the x2 3800 won't hold the rest of the system back, I know it won't reach FULL potential, for that I'd prolly need either Intel or the AM2 chipset, with a solid low latency 2GB Kit running DDR2, but I'm hoping it'll unleash the power of my 8800 more then the single 3200.

As for selling it, sure, i still got the box, and Heatsink+Fan included, good condition.