Hello Adeeb.
There would be advantages to having more memory for AE (in particular, you’ll be able to fit more rendered frames into memory, which may improve performance slightly).
In general, though, unless you’re dealing with huge data sets (incredibly complex 3D Invigorator objects, very high-def images/movies, etc.), you won’t see too much of a difference.
That’s been my experience, at least.
Let us know if you have more questions.
Matt Rhodes
Zaxwerks, Inc.