You can scale with more memory channels. Workstation/server platforms go up to 12 or 16 channels if I remember correctly.
replyConsumer platforms have been stuck at dual channel for decades; most of it I attribute to intentional product segmentation. I'm hoping that LLMs might change eventually for an upcoming consumer platforms; going to 4 channel would be really nice.
How do you scale past 16 channels though? 16 channels give you around 614 GB/s, while PIM can do that per chip, so it can achieve 58TB/s.
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