One of the major surprises Intel revealed during its Lunar Lake architecture announcement was the decision to remove Hyper-Threading (SMT) from its next-generation thin and light-optimized architecture. New Zen 5/Zen5C multi-threading benchmarks from Phoronix suggest that this feature still benefits AMD CPUs, showing significant performance and efficiency gains from having two threads on a single core.
Phoronix tested AMD's Ryzen AI 9 HX 370 in Linux with its four Zen 5 cores and eight Zen 5c cores, all featuring simultaneous multithreading (SMT) capabilities. The Linux-focused outlet tested the chip with SMT and turned on and off in various tests in Ubuntu 24.04 to see the advantages (or disadvantages) of AMD's SMT.
