4GB Dual Channel DDR3 SDRAM at 1067MHz (2 Dimms) or 8GB DDR3 SDRAM at 1067MHz (2 Dimms)

Hello all,

Before you guys answering my questions, I'm a noob when it comes to this. So please try to answer in ABC-language. LOL!

I'm going to buy a XPS 13, I just want it to be as fast as possible!

Processor: Intel® Core™ 2 Duo P9600 (6MB cache/2.66GHz/1066Mhz FSB)

That is the best one for the XPS 13.

Memory: 4GB Dual Channel DDR3 SDRAM at 1067MHz (2 Dimms) or 8GB DDR3 SDRAM at 1067MHz (2 Dimms)

Ok, so I'ld like to know.. does it realy realy makes a difference if I'ld buy the 8GB instead of the 4GB?

At the moment I have an XPS M1210 with only 2GB, sometimes it lags if I have many programs open.. I don't know if it's because it's already a 3 year old machine or I just need more memory.

I'm going to use the XPS 13 for gaming (Call of Duty: Modern Warfare 1 & 2, and Far Cry 2), for music editing (Fruity Loops and Music Maker), for photo editing (Photoshop) and watching movies and listening to music (Youtube and TVShack).

A lot of multi-tasking (if you're asking me), but to my knowledge the 8GB is like what.. 1 year on the market?? I can't picture people having too many problems with "just" 4GB and now when the 8GB is out they all switch to that one.

I mean, I think 4GB is fast also, but because on my XPS M1210 I hardly did the things I now want to do so I can't compare.

I wonder if I have to go from 2GB to 4GB or from 2GB to 8GB,or better yet.. I was wondering what you guys were thinking.

Thanks in advance!