Threadripper 7000 is the most reliable CPU as per Puget Systems stats — Nvidia RTX Ada Generation GPUs have the lowest failure rates

Ada is 4090 series

Honestly a 2% failure rate on CPU seems… high?

It's just about the last component I'd look at when diagnosing issues owing to that, it's usually: Storage, RAM, Motherboard, PSU, before I start giving a CPU side eye.

The only CPU I've seen go bad was an Intel one that static electricity on the USB somehow completely killed.

This is also me ignoring Intel's recent manufacturing misstep that killed much of the 13-14th gen parts.