Fast14 looked amazing and it's one of those technologies that seems/seemed so promising. It's a tragedy (for them) that their FastMATH missed the machine learning wave - simply too early!

Alas, with the Apple acquisition nobody else can use it and we don't even know if they use it (but see https://spectrum.ieee.org/semiconductors/processors/evidence...)

While Intrinsity claimed powered advantages, I've heard off-hand remarks that it was too power hungry. I speculate that dynamic logic might have mores issues as geometries shrink.