RTINGS.com reviewed the Framework Laptop 16 in June.
Framework Laptop 16 (2023) Review - RTINGS.com
(via Framework Laptop 16 User Reviews - #438 by TheStachelfisch)
(I didn’t understand this statement in the RAM section.
Each SO-DIMM of DDR5 RAM has two channels; therefore, if you plan on upgrading to more RAM down the road, you can select an option with only one DIMM and add another one later without having to worry about sacrificing performance like with the older DDR4 standard.
A DDR4 SO-DIMM has 1 channel with 64 data lines. A DDR5 SO-DIMM has two channels, each with 32 data lines.
Confusingly, AMD’s Ryzen 7840HS specifications say the processor has two memory channels. I hope they mean it supports two SO-DIMMS.
[The RTINGS statement might be true if two SO-DIMMs shared only two 32 bit data channels to the processor. But that is only 64 data lines total, and since DDR5 is only 50% higher frequency, that would mean that the DDR5 with two SO-DIMMS would be lower bandwidth than DDR4 with two SO-DIMMS, and that seems unlikely.]
So it doesn’t seem like a single DDR5 SO-DIMM can provide the bandwidth of two DDR5 SO-DIMMS, and therefore it will have less performance.)