Hello, I’m currently thinking back and forth about which new home server to build. What I’ve stumbled across: the i9 and new Core 9 Ultra all only support a maximum of 192GB RAM. However, some of the mainboards support 256GB (with 4 RAM banks and dual channel). Why?
I want to have the option of maxing out the RAM later.
I could buy 4x48GB RAM now and be at 192GB. Maybe I would be annoyed later that 48 GB of RAM is still “missing”. But what if I buy 4x 64GB RAM? 3x64 GB RAM makes no sense, because then dual channel is not used. 4x64 is probably not recognized by the processor?
Or are there LGA1851 or LGA1700 processors, capable of handling 256GB RAM?
Seems it means all together. (5600MT/s / 1000) x 2 sticks simultaneously x 64bit / 8bits/Byte = 89.6 GB/s
or 2933/1000 x 4 x 64bit / 8 = 93.9 GB/s
so they calculated with double the DDR bus width in the one example, and 4 times the bus width in the other one. That means dual or quad channel is already factored in in those numbers. And yes, the old one seems to be slightly better than the new one. At least regarding memory throughput. I suppose everything else has been improved on. And you need to put in 4 correct RAM sticks to make use of it in the first place.