> Each of the 2-8 main CPU cores can run independently, shutting on or off as necessary, and has its own private cache (bigger than most computers’ RAM up to even recently)
Can someone elaborate on this? Do CPUs really have gigs of on-die RAM for their own private use? What are those used for? Or is this just roundaboutly referring to the usual cache hierarchy? If it's the latter, AFAIK CPUs have under tens of megabytes of cache, and it's been decades since the average desktop had 32 MB of RAM--a bit far from recent.
He's talking about "recently" in the age of computing hardware, not the last few years. You need to wait until around 1995[1] to find a mac with more standard RAM than an i9 has in its L2 cache[2].
I see. I was hoping there was something more interesting going on, such as CPU-private bookkeeping... or perhaps supporting that JVM that lives in the management engine. :)
Can someone elaborate on this? Do CPUs really have gigs of on-die RAM for their own private use? What are those used for? Or is this just roundaboutly referring to the usual cache hierarchy? If it's the latter, AFAIK CPUs have under tens of megabytes of cache, and it's been decades since the average desktop had 32 MB of RAM--a bit far from recent.