Cause of Death
Outcompeted
A superior competitor captured the market. Signal scores typically decline for 12–24 months before the shutdown announcement.
What Happened
Intel and HP co-designed Itanium as the future of 64-bit computing. AMD instead extended x86 to 64-bit, which Microsoft and Linux adopted. The server market that Itanium was supposed to own went to x86-64 instead. After 20 years and billions in development, the last Itanium shipped in 2021.