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AMD Set to Fix Ryzen 8000G APU STAPM Throttling Issue, Sustained Loads Affected
by Gavin Bonshor on February 2, 2024 8:30 AM EST - Posted in - CPUs - AMD - APUs - Phoenix - 4nm - Zen 4 - Ryzen 8000G - Ryzen 7 8700G - Ryzen 5 8600G - STAPM Earlier this week, we published our review of AMD's latest Zen 4 based APUs, the Ryzen 7 8700G and Ryzen 5 8600G. While we saw much better gaming performance using the integrated graphics compared to the previous Ryzen 5000G series of APUs, including the Ryzen 7 5700G, the team over at Gamers Nexus has since highlighted an issue with Skin Temperature-Aware Power Management, or STAPM, for short.
Besides the obvious physical differences, the Ryzen 8000G APUs feature a much higher 65 W TDP (88W PPT) to reflect their desktop-focused operation, making these chips the least power constrained version of Phoenix to date. The issue is that AMD has essentially 'forgotten' to disable these STAPM features within their firmware, causing both the Ryzen 8000G APUs' Zen 4 cores and RDNA3 integrated graphics to throttle after prolonged periods of sustained load. As we can see from our investigation of the issue, in F1 2023 at 720p High settings, within 3 minutes of playing, we saw a drop in power by around 22%, which will undoubtedly impact both CPU and the integrated graphics performance during prolonged periods.
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