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⇱ SMT Proves Very Advantageous For AMD Ryzen AI MAX Strix Halo Performance - Phoronix


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SMT Proves Very Advantageous For AMD Ryzen AI MAX Strix Halo Performance

Written by Michael Larabel in Processors on 3 June 2025 at 09:00 AM EDT. Page 2 of 8. 47 Comments.

Code compilation is very common for Linux users particularly developers and those running source-based Linux distributions like Arch Linux... With starting off on some timed code compilation benchmarks of different codebases, we see the immediate clear-cut benefit of SMT on the AMD Ryzen AI MAX 16-core processor.

There were very clear gains from leveraging SMT on the AMD Ryzen AI MAX+ PRO 395 processor... Even beyond the performance of 16 Zen 5 cores without SMT, there was significant time savings for compiling code by leveraging Simultaneous Multi-Threading. Beyond that, there was no significant power difference to having SMT enabled: in some benchmarks the no SMT run actually yielded ~1 Watt higher power use.

AMD Strix Halo with 16 cores / 32 threads and being able to have up to 128GB of RAM in laptops like the HP ZBook Ultra G1a is a huge advantage to developers compared to Lunar Lake with just 8 cores and up to 32GB of RAM depending upon the SoC.