dang. the dual-socket AMD Turin "Volcano" platform has half a gigabyte of L3 cache.
there's as much cache in that server as there was RAM in my first gaming rig.
@gsuberland I think that's the size of the spinny hard drive on the first main host (mail, news, web, DNS was on a slightly slower 386/25) that we used for the ISP I was part of starting way back when.