The machine I'm currently typing on is just 8Gig. It's a W7 machine and doesn't need the huge amounts just to burble along.
My recording machine - W10 - uses 16 with no memory issues.
Most of my recording involves live tracks by me & others with lots of takes on my part plus the battery of RealTracks I use to set up the demo run of each song. Up to 42 tracks with not issues - mind you I don't use any hungry VSTs.


Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe