Wednesday 27 July 2016

Why is the proprietary ARM(64) preferred to the open SPARC(64) architecture?



Just wondering:

Most mobile devices, Android or Windows or {i, watch}OS, come with an ARM/ARM64 RISC processor. As far as I know, ARM is a proprietary architecture, directly connected to additional development cost because Advanced RISC Machines must grant a license first before you can start to assemble a new smartphone. (I never tried to buy an ARM license, maybe they just sell you a joker for all of your future devices?)

Given that the well-established SPARC/SPARC64 RISC processor is open and royalty-free, it's strange to never have seen a SPARC smartphone/tablet/whatever in the past few years. What makes ARM worth the additional cost?



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