Will I see a performance increase if I add another 1GB to Vista 32bit?

[Cypher™]

Hi. As the topic say's will I see a performance increase as I already have 3GB of memory.
My system setup is
Intel Core 2 Quad Q6600
3GB DDR2 PC2-5300 (3x 1024 MB)
Foxconn G33M05 with Viiv (Mobo came with case)
NVIDIA GeForce 9800 GTX
Vista Home Premium (32 Bit)

I was wondering as I have 3 slots full Dual Channel mode will proberly be disabled.If I add another 1GB memory similar to what is installed will my performance increase?

Still to come:
EVGA nForce 790i Ultra SLi (Socket 775) PCI-Express DDR3 Motherboard (N790-IUL9)

And another NVIDIA GeForce 9800 GTX

Cypher™

 

[Cob]

Since you are running a 32bit OS you will only have access to a max of 3.5gb, usually closer to 3.25gb.

So it's probably not going to be worth it, even with dual-channel being re-enabled.