I think you mean unified (on-die) RAM can be faster.
They do make the most of it though. Soldered RAM can be much faster than socketed RAM, which is why GPUs do it too.
emptiestplace@lemmy.ml 8 months ago
bamboo@lemm.ee 8 months ago
Well, that too, but that’s not particularly common on laptops or GPUs. Even in Apple silicon it’s not the same die, but it is the same package.
uranibaba@lemmy.world 8 months ago
Why is that?
bamboo@lemm.ee 8 months ago
Shorter physical distance means less latency and lower power. Some memory types like LPDDR4X are built with assumptions that only apply to soldered RAM.
locuester@lemmy.zip 8 months ago
My knowledge of electrical engineering has not shown that solder increases performance. Do you have some more information on this?
bamboo@lemm.ee 8 months ago
Solder doesn’t increase performance, but shorter physical distances mean lower latency and less power to transmit the same data. LPDDR4/5X are designed to take advantage of this additional efficiency.
Tinidril@midwest.social 8 months ago
It would seem to be rational that the less mass of metal in a connection, the faster that connection will charge or discharge voltage. Physical sockets require a lot more mass just to ensure solid contact.