[wtallis]

Intel actually has this documented all on one page: https://www.intel.com/content/www/us/en/support/articles/000...

DDR4 support was introduced with the 6th gen Core (except Core m) in 2016, LPDDR4 support didn't show up until (half of) the 10th gen lineup in 2019. It's just another aspect of their post-Skylake disaster, wherein they kept shipping the same stuff under new names for years on end before finally getting 10nm usable enough for some laptop processors, then a few years later getting it working well enough for desktop processors. In the meantime, they spent years not even trying to design a new memory PHY for the 14nm process that actually worked.

[angoragoats]

Yeah, this link is helpful, but IMHO doesn’t actually call out the specific problem I was referring to, which is that only laptops that used LPDDR3 had the 16GB limitation. If the laptop used regular DDR3, or DDR4, it could handle 32/64GB. The table lumps everything together per processor model/generation.