I don't know if they have some kind of magically genius caching system but the chip only has 512kb of SRAM and a little cache and the rest has to be managed by flash memory which is like 30+ times slower so I dunno about the performance of that.
The boards using this chip typically have 8 MB of PSRAM from what I've seen.
The boards using this chip typically have 8 MB of PSRAM from what I've seen.