New Laptop Memory Is Here! LPCAMM2 Changes Everything! - iFixit Video
Submitted 6 months ago by Linkerbaan@lemmy.world to technology@lemmy.world
Comments
db2@lemmy.world 6 months ago
alphapuggle@programming.dev 6 months ago
As a Thinkpad user since the early 2000s, I’m extremely excited to see this news after I’ve slowly watched all of my repair & upgrade ability be removed.
abhibeckert@lemmy.world 6 months ago
It runs at 120 GB/s…
As a Mac user that sounds pretty shit. A MacBook Pro has 400GB/s RAM.
falkerie71@sh.itjust.works 6 months ago
Apple M3 uses LPDDR5 and have transfer speeds of up to 6400 MT/s while LPDDR5X will have 8533 MT/s. LPCAMM2 is the connector type to replace SO-DIMM slots, it still uses LPDDR chips. According to this article, it would support speeds of up to 9600 MT/s. So unless I’m missing something, shouldn’t speed be much of a concern? I’m open to corrections.
victorz@lemmy.world 6 months ago
Megatransfers? Or what does the T stand for? And how does a “transfer” (if so) translate to bytes?
Emmy@lemmy.nz 6 months ago
The modularity is important. You might not care about cost to replace, and affordability. Plenty of people do.
What’s weirder is you compare it to a MacBook Pro with 400, when much much faster is available elsewhere. It’s not an apples to apples comparison.
MentalEdge@sopuli.xyz 6 months ago
You’re comparing apples and oranges.
The speeds you mention are defined by the memory type, not the connector.
As far as I can tell, there is no reason this connector could not, and won’t be, used with more advanced memory types. Including the type in apple silicon, and beyond.
datelmd5sum@lemmy.world 6 months ago
Why is bandwidth so important? The M2 is about half as fast as a DDR4 era x86 desktop processor with half the memory bandwidth.
qjkxbmwvz@startrek.website 6 months ago
cpubenchmark.net/…/Apple-M2-Ultra-24-Core-vs-Inte…
Benchmarks are of course just benchmarks, but the single-core performance is better for the M2, and the range-topping M2 is about 2x faster than the i9.
Also, regardless of how something compares, if it is ever memory-bandwidth bound, then faster RAM should help. While most tasks may be CPU or IO bound, AFAIK there can still easily be memory bound tasks in real-world workloads.
I picked the i9-11900k for comparison since I think that was the last one to only support DDR4 (making it “DDR4 era”). Ryzen maybe faster in the DDR4 era though?
cmnybo@discuss.tchncs.de 6 months ago
When the memory is shared with the GPU, bandwidth becomes much more important. A desktop will just use a dedicated GPU if it needs the performance.
TenderfootGungi@lemmy.world 6 months ago
This memory has1/4 the bandwidth of M series Mac’s. It may be possible to match current memory with 4 chips. But that would take a lot of room. And that leaves little room for growth.
praise_idleness@sh.itjust.works 6 months ago
People still use magnetic tapes to store stuff. New standards are being made. Just because something is clearly better in a way doesn’t mean that it will make everything well he obsolete, especially when we’re talking about soldered RAM…
bobs_monkey@lemm.ee 6 months ago
Magnetic tapes are still one of the best ways to store large quantities of data over a very long period of time, and they typically don’t really need very fast I/O considering their use case as long term archival that the stored data may or may never be read again.
RAM and local device storage are very much different story, considering the performance implications; it’s pointless to have a lightning fast processors if RAM and storage bus speeds can’t keep up. That said, flash memory doesn’t last forever, and there is a strong case to be made about having swappable components that don’t brick the entire machine when they fail. Replaceable parts ensures a device can live longer, leading to less ewaste and less money needlessly spent.
Crafter72@lemmy.world 6 months ago
Hopefully it can go mainstream with adoption frim oems and ram kit manufacturers though I’m pretty sure it will cost a fortune for such kit that want to edges out both performance and repairability.
vodkasolution@feddit.it 6 months ago
That could be a good news of they don’t skyrocket prices
MakePorkGreatAgain@lemmy.basedcount.com 6 months ago
the “change” is that laptop ram is socketed again?
Excrubulent@slrpnk.net 6 months ago
They explain in the video that SODIMM socketted RAM is bulky and power hungry. The low power chips used to need to be soldered, but this is a new way to use the low power smaller chips with a socket. That’s the difference.
MakePorkGreatAgain@lemmy.basedcount.com 6 months ago
ah, power constraints. yeah that tracks
vext01@lemmy.sdf.org 6 months ago
Can we have removable batteries again now?
BassTurd@lemmy.world 6 months ago
And the socket can be changed too, if I read the article correctly.