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A comment on Framework's first desktop is a strange–but unique–mini ITX gaming PC. Parent comment

Re:Framework's first desktop is a strange–but unique–mini IT... by kingsleyopara on Tuesday February 25, 2025 @03:29PM (#43176955)
One thing to note on the more RAM: for the 128GB option, my understanding is that the GPU is limited to using only 96GB [1]. In contrast, on Macs, you can safely increase this to, for example, 116GB using `sysctl`.

[1] https://www.tomshardware.com/pc-components/cpus/amds-beastly...

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Re:Framework's first desktop is a strange–but unique–mini IT... by adgjlsfhk1 on Tuesday February 25, 2025 @03:34PM (#43177014)
On linux, the gpu can go up to 110 GB.
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Re:Framework's first desktop is a strange–but unique–mini IT... by kingsleyopara on Tuesday February 25, 2025 @03:37PM (#43177060)
Apologies, I stand corrected. Do you have a reference for this? I'm genuinely curious why the 96GB "limit" is so frequently cited - I assumed it must be a hardware limitation.
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Re:Framework's first desktop is a strange–but unique–mini IT... by watermelon0 on Tuesday February 25, 2025 @04:04PM (#43177371)
It's mentioned in LTT video: https://youtu.be/-lErGZZgUbY?t=126

(video also features Framework's founder/CEO)

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Re:Framework's first desktop is a strange–but unique–mini IT... by amstan on Wednesday February 26, 2025 @10:22PM (#43190975)
It can go higher actually, just that when I setup my test devices I had a "ought to be enough for everyone" moment when typing `options amdgpu gttsize=110000`. I guess this number spread too far, heh.

See also:

[1] https://en.wikipedia.org/wiki/Graphics_address_remapping_tab...

[2] https://www.kernel.org/doc/html/v4.19/gpu/amdgpu.html#:~:tex...

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Re:Framework's first desktop is a strange–but unique–mini IT... by colingauvin on Tuesday February 25, 2025 @03:41PM (#43177124)
That's a Windows limitation. On Linux it's 110GB.
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