Two caveats: ECC UDIMMs still top out at 48 GB/stick. Bandwidth is reduced at 2 DIMMs per channel.
So yes, as far as applications which need memory capacity per node are concerned, this lets AM5 cut into Threadripper territory only slightly.
So yes, as far as applications which need memory capacity per node are concerned, this lets AM5 cut into Threadripper territory only slightly.