ARM and RISC are not equal. The fastest current RISC CPU is an absolute potato. Then you’ve got ARM-based chips way faster than a Pi. Then there’s silicone like the M4. It’s a big uphill for RISC, which is why this, and the investments from the Chinese, are good but longer-term plays.
ARM and RISC are not equal. The fastest current RISC CPU is an absolute potato. Then you’ve got ARM-based chips way faster than a Pi. Then there’s silicone like the M4. It’s a big uphill for RISC, which is why this, and the investments from the Chinese, are good but longer-term plays.
The question should be then what ARM CPU compares to current RISC-V best CPU and see the gap in years.
This would be hard to quantify. A year of work one year ago would take significantly less time now since the knowledge exists.