Comment by dietr1ch
19 days ago
AFAIK now the ram gets to be way closer this way (which is why the M series gets to destroy everyone on benchmarks where it can show off that).
I think that it'd be cool to have that memory become an L4 cache and still have cheaper ram as a backing store with more capacity to fence off the CPU from the abysmal latencies that SSDs and, satan forbids, HDDs have.
The RAM speed comes from the 512bit wide bus, not the direct connection. If motherboard makers were to support quad or octa channel interfaces, PCs would be just about as fast.
RAM throughput comes from a wide bus, but I think that nowadays memory access latency is getting pretty important to keep the CPUs working.
There is no technical reason that forced Apple to make the RAM soldered. They could have easily made a proprietary but replaceable socket/connector, but chose not to because of the sweet, sweet markups.
LPDDR is not allowed/available in DIMM form.
This is true but not at all relevant to anything I said, as I was not talking about DIMMs.
LPCAMM2 is available.
3 replies →
A CAMM2 memory based design would likely work just as well.
Intel Lunar Lake is proving this is not necessary.