Even CPUs without any vector instructions at all can still do operations on vectors; they just have to do them "the hard way": slowly. This worst case ain't th

Even CPUs without any vector instructions at all can still do operations on vectors; they just have to do them "the hard way": slowly. This worst case ain't the end of the world if each core is fast enough and you have enough cores. In this case, the design (AFAICT) uses RISC-V's support for extensions to add some GPU-specific instructions for things like vector math and texture lookups.