this post was submitted on 27 Nov 2024
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I do not think it is about the royalties in most cases. I mean, RISC-V royalties may be the reason you choose it over ARM for a custom chips ( say in the bajillion SSDs you are going to ship ). Perhaps you were going to choose a different ISA for a microcontroller and the lack of license fee makes RISC-V attractive.
For chip maker, it is the freedom that matters as that is what “convenience” means to them. And it means less risk. Look at the Qualcomm / ARM lawsuits right now. That would not happen if Qualcomm had chosen ARM.
And if you are a chip maker licensing core designs, do you want your ISA to force you into a monopoly? ARM is more mature today but the role that ARM the company plays is being filled by multiple RISC-V suppliers ( HiFive, Milk-V, etc ). More players means more completion means more choice and probably better prices. ARM’s core business is licensing chip designs and they are about to have a lot of competition from RISC-C.
And in the end, competition from and within the RISC-V space will drive down prices for consumers. That is what consumers are going to care about. The lower prices will not really be because of lower license fees ( though that will help of course ). And it all comes with a large and open software ecosystem. So the “convenience” will be there too.