> Do these exist yet? No, it's simply too soon. A realistic initial ISA spec for desktops and servers was first published in November 2021, less than three ye

> Do these exist yet? No, it's simply too soon. A realistic initial ISA spec for desktops and servers was first published in November 2021, less than three years ago. It generally takes 3-4 years from the design of a CPU core being finished and announced and available for licensing for a high performance chip to be designed around it, put into mass production, and chips designed on to boards, and put on sale to the public. In addition, except for SiFive, the serious and well-funded companies with experienced CPU designers from Intel, AMD, Arm, Apple, Qualcomm etc mostly were founded or started work on a RISC-V core in 2021 or so.