SiFive announced P870[0] last October[1]. It competes with ARM's absolute best.

Ventana Veyron V2 and Tenstorrent Ascalon/Alastor are other already announced, highly competitive, very high performance microarchitectures.

The high performance chips are coming. RISC-V is inevitable.

0. https://www.sifive.com/cores/performance-p870-p870a

1. https://www.sifive.com/press/sifive-announces-differentiated...