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My observations with BIAB is that it's not the RAM that's at issue but the processor.Once the processor locks at 100% you're done for.I know there's a sort of relation ship between Ram/processor and speed but the generation or RTs has always been limited by the processor pegging out at 100% while the RAM use is very low.




From the perspective of "bang for the buck", if you're looking at paying $100 to add a gig of ram to an old system or spending a bit more for a new low-end dual core with lots of ram, there's no question about it.
Even a cheap entry level computer from Wal Mart is likely to exceed both the RAM and processing power of an updated older system for a cost that's not much more than the RAM upgrade.

Plus, once you have an extra PC you can use your old one to display manuals or surf the PGMusic forum at the same time as you're running Real Band on the other

;-)