8051 8-bit MCU @ 25 to 300 MHz with 8K SRAM The way the Sophgo SG2000 chip works, you can select to use either the 1 GHz RISC-V core or the 1 GHz ARM core, but you cannot use both at the same time.

The StarFive Vision Five 2 single-board computer is no rocket and requires a willingness to experiment. Nevertheless, it is still one of the most attractive 64-bit RISC-V systems running Linux. As ...