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  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Maximizing The Performance & Power Efficiency Of AMD Ryzen AI Max+ 395 With Platform Profiles

([Computers] 101 Minutes Ago 1 Comment)


[1]

Last week I began posting Linux benchmarks of the flagship " [2]Strix Halo " SoC, the [3]AMD Ryzen AI Max+ PRO 395 with powerful [4]Radeon 8060S graphics using the HP ZBook Ultra G1a laptop. Both the CPU and GPU results for the data published thus far have been mighty impressive and done at the Ubuntu Linux defaults... But the Ryzen AI Max+ 395 within the ZBook Ultra G1a can be pushed even further by leveraging the ACPI Platform Profiles capabilities. In this article is showing how much further performance -- and the power costs -- can be achieved out of this AMD Strix Halo SoC when leveraging the HP Power Profiles as well as the power efficiency for those wanting to run the SoC instead in the "power saver" / "low power" configuration.

[5]

As shown on various modern notebooks the past few years, ACPI [6]Platform Profiles can make for some nice performance boosts or power-savings/efficiency improvements depending upon your preference and how well tuned the platform profiles are by the given hardware vendor. Today's article is looking at the impact of changing the Platform Profile option on the HP ZBook Ultra G1a with the AMD Ryzen AI Max+ PRO 395 SoC.

[7]

The Strix Halo / ZBook Ultra G1a benchmarks to date on Phoronix were all done in the default "balanced" platform profile configuration as used out-of-the-box on the laptop. Today's article adds in the performance and SoC power results when switching to the "performance" profile for peak performance and similarly the impact of restricting the SoC capabilities within the "power saver" / "low power" mode for those wanting to extend the battery life, lower the thermals, or similar.

Ubuntu 25.04 with the Linux 6.14 kernel remained the default Linux configuration for all of these tests of the performance and power saver modes alongside the default balanced configuration. For additional perspective, the Linux laptop benchmark results from the Core Ultra 7 258V "Lunar Lake" with the [8]Lenovo ThinkPad X1 Carbon Gen 13 and [9]Framework Laptop 13 with AMD Ryzen AI 9 HX 370 were left as part of the comparison for additional perspective into the power/performance impact of Strix Halo. For more Linux laptop benchmarks see the aforelinked Ryzen AI Max+ articles from last week. Plus other HP ZBook Ultra G1a Linux benchmarks remain ongoing at Phoronix.



[1] https://www.phoronix.com/image-viewer.php?id=amd-strix-halo-platform-profile&image=halo_platform_0_lrg

[2] https://www.phoronix.com/search/Strix+Halo

[3] https://www.phoronix.com/review/amd-ryzen-ai-max-pro-395

[4] https://www.phoronix.com/review/amd-radeon-8060s-linux

[5] https://www.phoronix.com/image-viewer.php?id=amd-strix-halo-platform-profile&image=halo_platform_1_lrg

[6] https://www.phoronix.com/search/Platform+Profiles

[7] https://www.phoronix.com/image-viewer.php?id=amd-strix-halo-platform-profile&image=halo_platform_2_lrg

[8] https://www.phoronix.com/review/lenovo-thinkpad-x1-gen13-linux

[9] https://www.phoronix.com/review/framework-13-amd-strix-point


Norbert Weiner was the subject of many dotty professor stories. Weiner was,
in fact, very absent minded. The following story is told about him: when they
moved from Cambridge to Newton his wife, knowing that he would be absolutely
useless on the move, packed him off to MIT while she directed the move. Since
she was certain that he would forget that they had moved and where they had
moved to, she wrote down the new address on a piece of paper, and gave it to
him. Naturally, in the course of the day, an insight occurred to him. He
reached in his pocket, found a piece of paper on which he furiously scribbled
some notes, thought it over, decided there was a fallacy in his idea, and
threw the piece of paper away. At the end of the day he went home (to the old
address in Cambridge, of course). When he got there he realized that they had
moved, that he had no idea where they had moved to, and that the piece of
paper with the address was long gone. Fortunately inspiration struck. There
was a young girl on the street and he conceived the idea of asking her where
he had moved to, saying, "Excuse me, perhaps you know me. I'm Norbert Weiner
and we've just moved. Would you know where we've moved to?" To which the
young girl replied, "Yes, Daddy, Mommy thought you would forget."
The capper to the story is that I asked his daughter (the girl in the
story) about the truth of the story, many years later. She said that it
wasn't quite true -- that he never forgot who his children were! The rest of
it, however, was pretty close to what actually happened...
-- Richard Harter