I didn't think that RAM was really an issue.  From what I have experience, read, and talked to others, the main thing is a single rail good PowerSupply, Good Motherboard, and the correct settings.  Processor and Ram can be kind of minimal.

Still wondering why I can't get the speeds you guys are getting though.  Still at around 2.5MH/s with this miner on BAMT 1.6 w/Sapphire R9 290 Tri-x for x13 mining: https://github.com/sgminer-dev/sgminer