[hajile]

It didn't die.

Intel bought it from HP, stripped it for parts, then killed it.

HyperTransport and a few other things were essentially just copies of Alpha's stuff cleanroom implemented by ex-Alpha employees. Designs like Sandy Bridge look quite similar to EV8. QuickPath is just Alpha's interconnect with some updates (HyperTransport was also a cleanroom copy from ex-Alpha employees). Even AVX seems inspired by the 1048-bit SIMD planned for EV9/10.