Re: 4gb vs 16gb
I have a X4 920 and I recently went from 4GB to 8GB DDR3 1600.
Despite my best tries, I could not run the RAM at speed.
Remember, the Phenom2 official support is only 1333, so running the RAM at 1600 is as much processor limited as memory limited...
As the universe is curved, there cannot be a straight answer...