What a missed opportunity for a semicolon after "Samsung", and what a confusing sentence as a result.
Does Chrome's RAM usage cause problems on your machine? If the RAM is available, I don't see why Chrome shouldn't be taking advantage of it to improve browsing performance.
Have you looked at the hard drive usage of Chrome versus FF? I haven't looked, but it would be interesting to see if Chrome's increased RAM usage results in lower hard drive usage.