Is it naive to expect that Intel’s Alder Lake desktop CPUs will be able to handle 256GB of DDR5 RAM with 4 x 64GB configuration someday?
With DDR4 the maximum amount of non-buffered/registered non-ECC memory per one stick is 32GB, thus it’s reasonable to put 128GB limit on desktop SKUs today. But with DDR5, AFAIK, the theoretical density limit is much higher, it’s just the industry doesn’t manufacture such modules yet.
I know, it can only be speculated, but from my previous experience with X99 Broadwell platform, here what happened:
- initially the platform with 8 memory slots declared support of up 128GB ram for desktop SKUs, say 6950x, because higher capacity sticks didn’t exist.
- many years later, when regular 32gb dimm sticks appeared - they were running fine on those X99 CPUs (have such build as of writing)
- manufacturers, neither CPU, nor Motherboard, didn’t bother to update the supported specs, yet the 256GB config works.
How do you think, would Alder Lake be similarly future-proof platform?