Nobody is moving DRAM on-die. Apple puts DRAM on-package, and x86 laptops using LPDDRx solder it on the main board next to the soldered-down CPU/SoC. The advant

Nobody is moving DRAM on-die. Apple puts DRAM on-package, and x86 laptops using LPDDRx solder it on the main board next to the soldered-down CPU/SoC. The advantage of doing so is not latency (which is still dominated by stuff that happens entirely within the DRAM die) but rather that LPDDR allows for lower power draw for the same bandwidth.