Not sure about that, although having those fixed short traces probably helps with speed, considering the stupid DDR5 negotiation on boot.
The real reason however is that going up SoC SKUs at apple gives you more memory channels. Those bandwidth increases you see in specs are because of that, not because the memory is soldered.
The real reason however is that going up SoC SKUs at apple gives you more memory channels. Those bandwidth increases you see in specs are because of that, not because the memory is soldered.