2 Gig memory - Is it worth it?

[bushmins]

I have seen that XMS2 2x512 sticks have gone down by £30 in the last few months. I was wondering if i should go from 1gig to 2gigs. I play a lot of new games and do a lot of multi tasking applications, will the extra gig help at all?

My setup

E6300
DS3
7900GS
1gig XMS2
If i did get it what can i do to give the ram a good test to see if it has increase the speed of games etc.

Regards

 

[bushmins]

Would it be likely to see an increase on 3DMark software?

Im just reading up on over clocking, but would there be any significant increase without overclocking?