CPU upgrade help/question

[Fal1en]

My current setup:

Msi p6n platinum sli mobo, 8th kingston ram, 2x evga 8800gt ssc in sli, corsair 750w psu, intel e6420 CPU.

My question is: i was hoping to have enough money to upgrade my core components but unfortunately that didnt happen. I have just enough to upgrade my CPU to either a quadcore q8400 or a dual core e8400. My question is will it be a worthwhile upgrade over my e6420. I can't use anything but lga775 because I can't afford to upgrade the mobo. My CPU has always been my bottleneck as well. I was wondering if the performance boost will be worth the 180.00 I'm going to end up spending .

Thank you in advance!

 

[sportsfanboy]

You best best is to overclock that chip to 3.0 or higher, if your willing and able. Then save your money for a full system upgrade. Maybe Sandy Bridge or the 22nm die shrink a year or so later.

 

[enzo matrix]

Either will be worth it but the quad will definitely be worth it. With SLI 8800gt's, your CPU is the holding back factor.

 

[Totempole]

If you're not gonna OC, then maybe the E8400 would be a better choice. I have one combined with 4gb of Ram, and a GTX260 216. (Perfectly balanced)