I have no idea what you're talking about. Amd and Intel match on the isa in any case you'd see typically. Moreover, Intel is currently using AMDs instruction set. X86_64 was designed my amd and used to be called AMD64
If we are talking about 3D-Now, that is long dead and buried. If we are talking about the latest AVX-whatever, not even Intel is consistent, with different processor families supporting different subsets and applying different clock policies.
AVX-512, which Intel had since 2016 and AMD caught up with supposedly in 2022, is probably what I was thinking of. So, long ago but also not long ago ;)
Yes it was Intel's own spec, so of course they're gonna implement it first, but that's exactly what I mean. This is a recurring dance, and I'll pay a little more for the one that sets the standard. If this weren't a thing, they'd both just be commodity.
