[tyingq]

AMD's Rome processors are an interesting case, with 8MB of L3 cache per core. So the 64 core processor has 512MB of L3 cache. It wasn't that long ago that 512MB was a respectable amount of DRAM in a big server. An early 90's fridge sized Sun 690MP maxed out at 1GB of DRAM and had 1MB of L2 cache, no L3.

[zamadatix]

Half that - 4 MB per core so the 64 core CPU has 256 MB (dual socket is where the 512 number comes from but that's 128 cores and NUMA).

It's also not fully accessible, each core can only directly access the 16 MB in its group of 4. Everything else is the same as a cross cache read.

[tyingq]

Ah, yeah. Mixed up their CCD and CCX terms. The 690MP was dual socket though, so still a somewhat valid comparison.

[zozbot234]

> It wasn't that long ago that 512MB was a respectable amount of DRAM in a big server.

Whereas today, 512MB is a bare minimum amount of DRAM in a general-purpose desktop. Times change.

[blattimwind]

I don't think you can run a modern Linux or Windows 10 desktop on 512 MB RAM. Even my slim Linux desktop (no DE) consumes about 400 MB of RAM after login. Web-browsing with less than ~2 GB of memory doesn't seem feasible.