3 ms·
Yeah but DDR3 was faster then and still is now - I can't imagine my M4 Mac having a slightly older version RAM would meaningfully affect me, but another 24GB of
by OJFord 2mo ago
Yeah but DDR3 was faster then and still is now - I can't imagine my M4 Mac having a slightly older version RAM would meaningfully affect me, but another 24GB of it (or whatever I have) would certainly be an improvement.
CPUs have L1, L2, L3+ caches too after all.
- icedchai 2mo agoIt probably would. LPDDR5 memory bandwidth on M-series Macs is several multiples of the memory bandwidth available on DDR3 (depending on the exact chip, Pro, Max, etc... 4x to beyond 10x.) The whole system would be much, much slower.
- haroldp 2mo ago> Yeah but DDR3 was faster then and still is now USB would be the limiter for both.
- __david__ 2mo agoThey obviously did not mean not literal USB, just a standardized connector across DRAM versions/speeds.
- haroldp 2mo agoYeah, sure but... if it's real fast, lets connect SSDs to it and have real fast swap. Whatever it is will be limited to the bus speed. And that's gonna be silly compared to RAM speed.
- OJFord 2mo agoI didn't say anything about USB? If you're referring to upthread wanting RAM to be standardised like USB (not standardised on something like USB), I took that to mean backwards compatible slots. (And maybe handicapped forwards compatibility, though why would you.) M.2/PCIe is this way.