@lore Performance is going to be lackluster unless one pays to get the highest end hardware. There are a few newcomers like whatever is in the Lichee Pi 4. It's just the first proper T-Head C906 implementation I've heard of. A quad core RISC-V SoC that can out perform the Pi 4 it seems.

SiFive makes their own RISC-V SoCs but they are their own IP. The good news is that they seem to follow the standard. The T-Head cores were opened to the public. They might be a little different than the standard but they were designed for and used in servers and data centers.

It's not impossible to get a good RISC-V CPU or MCU but it definitely takes some research. I think StarFive has a few suitable products for tablets and laptops. The MCUs will be the best and worst category. I will admit that I haven't been disappointed by the performance with the few MCUs I've bought. The disappointment and frustration is getting them functional but they just work and lean towards being overpowered for their intended application. The first RISC-V MCU that I bought can emulate a NES and run Linux. It's a K210.