Just wondering what the fastest chips are, reduction of the write speed bottleneck and all.
check sandisk. they are one of the few companies innovating in the "MicroSD" card market (if it's even a thing) as for speed. the fastest thing they have is the 64GIB Micro SD cards. their 128GiBs have been about for about a year or so now. and everyones speeds are next to identical. they ALSO have a 200GIB MicroSD card.. i believe it's out. but it's slow as shit. most of the high capacities are slow before they start to get fast down the pipeline.
Sandisk has some top notch stuff. Here's a mini list of the cards I've had a chance to use
https://forum.teksyndicate.com/t/how-fast-are-your-sd-cards/82414