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Bit of a noob on these things here, but why 192GB? Why not, say, 256GB? I noticed the new mac pro also caps out at 192GB, is there a specific reason for that nu
by michelb 3y ago
Bit of a noob on these things here, but why 192GB? Why not, say, 256GB? I noticed the new mac pro also caps out at 192GB, is there a specific reason for that number?
- zargon 3y agoThe article says that HBM3 memory comes in 24GB stacks. (Not 32GB.)
- wmf 3y agoThe largest DRAM dies are 24 gigabit.
- Dylan16807 3y agoIn this case it's because memory scaling has slowed down, so the manufacturers have introduced sizes that are halfway between powers of two. It would simply take too long to wait for 2x before making a new product line. So the biggest HBM you can get is 24GB, and 8 of them is a reasonable max.
- brucethemoose2 3y agoThe MI300 has 8x 24GB stacks of memory, which is physically the absolute max they can do. And those 24GB stacks are brand new. I believe the Apple M series is limited by package space? The LPDDR5(X?) bus is not physically/electrically limited to 192GB like the MI300.