I , until today , have been running with 256K of Ram.
Today , I placed 1 Gig of Ram.

As far as browsing the Web is concerned, I've not noticed any change whatsoever.

Enough of anything , is enough.
Any more than is necessary is simply a wasted effort.

When you are thirsty , you only drink enough until thirst is quenched.
Too much will only lead to bloating and possibly drowning in the excess.