logoalt Hacker News

schmorptronlast Sunday at 2:07 PM1 replyview on HN

Will we be able to get similar bandwidth with socketed ram with CAMM / LPCAMM modules in the near future?


Replies

topspinlast Sunday at 3:19 PM

Maybe, but due to the physics of signal integrity, socketed RAM will always be slower than RAM integrated onto the same PCB as whatever processing element is using it, so by the time CAMM / LPCAMM catches up, some newer integrated RAM solution will be faster yet.

This is a matter of physics. It can't be "fixed." Signal integrity is why classic GPU cards have GiBs of integrated RAM chips: GPUs with non-upgradeable RAM that people have been happily buying for years now.

Today, the RAM requirements of GPU and their applications has become so large that the extra, low cost, slow, socketed RAM is now a false economy. Naturally, therefore, it's being eliminated as PCs evolve into big GPUs, with one flavor or other of traditional ISA processing elements attached.

show 4 replies