Are you referring to the multiple CCXs as different "NUMA" nodes? Because they aren't, they still share the same memory controller. There isn't a shared cache,

Are you referring to the multiple CCXs as different "NUMA" nodes? Because they aren't, they still share the same memory controller. There isn't a shared cache, true, and that does have performance implications but that doesn't make it NUMA. If you can point to anything to support your NUMA claim that'd be highly interesting, but all the block charts & teardowns I can find show it's clearly UMA.