AMD's Zen 4 has been tested with the various Spectre variant mitigations and the performance is surprisingly good. In fact, overall, the Ryzen 7950X has managed to beat the unpatched system.
Spectre variant 4 RSS
The hard times for Intel may not be over yet, as sources say that the promised silicon-level fix for the Spectre and Meltdown vulnerabilities may not protect from the variant discovered this week.
