For those not “in the know”, the PowerPC 615 was a never-released design that was pin-compatible with the Pentiums of the day and would have been able to run x86 and PowerPC (in both 32- and 64-bit variants).

I had no idea that existed. That would've been interesting. It'd be fun to see something like that in the future.

A lot of the engineers ended up at Transmeta.

I vaguely recall that it was a power hog.