Question on upgrading Ram... MBP 3,1

[lulgle]

I have a 2007 MBP that might be in need of an upgrade. Recently I have been working on large photoshop files, and with that running along with lightroom and itunes, my computer is superlaggy.

Will upgrading my 2gb ram too 4/6 gb increase performance?
I've read that my computer can take 6 gb, but will it be all used?
Will this even help?

here is my set up
MacBookPro3,1
Intel Core 2 Duo
2.2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 2 GB
500gb 7200rpm HDD

thanks for all your help.

ps - would any of this help the laggyness when i connect my mbp to an external screen?

 

[GGJstudios]

Will upgrading my 2gb ram too 4/6 gb increase performance?

For the vast majority of users, more RAM = better performance

I've read that my computer can take 6 gb, but will it be all used?

You can find specs on all Apple products with Mactracker

MA895LL (2.2 GHz), MA896LL (2.4 GHz)
Maximum RAM:6.0 GB (Actual) 4.0 GB (Apple)

Yes, it will use all of 6GB.

 

[lulgle]

thanks for the info.
so what does 6gb actual 4gb apple mean?
and would this specifically help with the programs and monitor im using or would it be a waste?

 

[GGJstudios]

thanks for the info.
so what does 6gb actual 4gb apple mean?
and would this specifically help with the programs and monitor im using or would it be a waste?

Apple claims the max RAM is 4GB, but it will actually use up to 6.