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The M1 Max gets that bandwidth from putting the RAM into the processor package. There is no way that server processors can fit the much higher RAM per core use
by ThrowawayR2 5y ago
The M1 Max gets that bandwidth from putting the RAM into the processor package. There is no way that server processors can fit the much higher RAM per core used for server workloads onto the processor package so it's unclear that the comparison is meaningful.
- marcan_42 5y agoYou need to scale the DRAM channels with the number of cores; you can't just pack more and more cores into one die without adding DRAM width. Yes, you then run into physical limitations, and that's kind of the point I'm trying to make here :)
- namibj 5y agoPOWER10's memory architecture offers a TB/s in memory bandwidth per die. And about another TB/s in other bandwidth for SMP and IO. Only using this all for memory, they'd be at an equivalent of around 80 channels. Not quite the 140, but much closer than 8.