Comment by the_pwner224
1 day ago
Yep, I have a 13" gaming tablet with the 128 GB AMD Strix Halo chip (Ryzen AI Max+ 395, what a name). Asus ROG Flow Z13. It's a beast; the performance is totally disproportionate to its size & form factor.
I'm not sure what exactly you're referring to with "Only Apple has the unique dynamic allocation though." On Strix Halo you set the fixed VRAM size to 512 MB in the BIOS, and you set a few Linux kernel params that enable dynamic allocation to whatever limit you want (I'm using 110 GB max at the moment). LLMs can use up to that much when loaded, but it's shared fully dynamically with regular RAM and is instantly available for regular system use when you unload the LLM.
What operating system are you using? I was looking at this exact machine as a potential next upgrade.
Arch with KDE, it works perfectly out of the box.
I configured/disabled RGB lighting in Windows before wiping and the settings carried over to Linux. On Arch, install & enable power-profiles-daemon and you can switch between quiet/balanced/performance fan & TDP profiles. It uses the same profiles & fan curves as the options in Asus's Windows software. KDE has native integration for this in the GUI in the battery menu. You don't need to install asus-linux or rog-control-center.
For local AI: set VRAM size to 512 MB in the BIOS, add these kernel params:
ttm.pages_limit=31457280 ttm.page_pool_size=31457280 amd_iommu=off
Pages are 4 KiB each, so 120 GiB = 120 x 1024^3 / 4096 = 31457280
To check that it worked: sudo dmesg | grep "amdgpu.*memory" will report two values. VRAM is what's set in BIOS (minimum static allocation). GTT is the maximum dynamic quota. The default is 48 GB of GTT. So if you're running small models you actually don't even need to do anything, it'll just work out of the box.
LM Studio worked out of the box with no setup, just download the appimage and run it. For Ollama you just `pacman -S ollama-rocm` and `systemctl enable --now ollama`, then it works. I recently got ComfyUI set up to run image gen & 3d gen models and that was also very easy, took <10 minutes.
I can't believe this machine is still going for $2,800 with 128 GB. It's an incredible value.
You may wanna see if openrgb isn't able to configure the RGB. Could even do some fun stuff like changing the color once done with a training run or something
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Really appreciate this response! Glad to hear you are running Arch and liking it.
I've been a long-time Apple user (and long-time user of Linux for work + part-time for personal), but have been trying out Arch and hyprland on my decade+ old ThinkPad and have been surprised at how enjoyable the experience is. I'm thinking it might just be the tipping point for leaving Apple.
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