The internal photos show the Flash being a Winbond 25Q128, which is 128M and makes more sense.
The processor is ESP32-D0WDQ6, which is dual core, no Flash (makes sense, uses external) package with WiFi b/g/n (150Mbps) and BT/BLE. Datasheet says 520KB SRAM, and that’s… not much. It also claims 600MIPS, but in a RISC processor that’s a pretty spongy statistic. But that RAM… there’s one chip on the board I can’t identify, and I’m hoping it’s an SRAM.
How will this compare to the 2008-era MIPS 1004Kc in the Plus? I guess we’re going to find out. But as @HSD99 said, a dedicated RTOS may make all the difference, at least for the core software.
Oh, and thanks to the fellow who submitted this package to the FCC and scrubbed all the chip labels from the CPU-side internal photos… except on one photo. You da real MVP.