> Why do you need 8GB to run MAME?! Man. I mean, what kind of horsepower did the old
> arcade machines have? Surely they are not more powerful than a $200 nettop PC? I
> realize they were machines dedicated to a single task, whereas computers are not and
> they must emulate. But still. AdvanceMAME, as old as it is, can still play many ROMs
> and runs fine on low-end hardware. Why can't MAME, what's so different about it?
Those items were just stuff on my wishlist, so don't read into it.
You don't need 8GB to run MAME, but memory is by far the cheapest part of the equation and going from 4GB to 8GB doesn't really add much to the price and future-proofs you in case you want to run something that DOES require more memory, or if you want to later use the computer for something else. I don't know what operating system you intend to run, but Windows 7 pretty much needs 4GB as a minimum.
Another consideration is the number of memory slots on the motherboard. If you only have two slots and you get a 4GB kit (2x2GB) and want to upgrade later, you need to toss all your existing memory to upgrade. I'd rather just spend a little extra up front and save myself time and money later.
GroovyMAME support forum on BYOAC