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submitted 4 months ago by KarnaSubarna@lemmy.ml to c/technology@lemmy.ml
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Have you done any stress tests on the system? And if you did did you monitor CPU power?

I have a gen 4 and at least whenever the CPU and GPU are active the CPU runs absurdly slow. I havent tested just CPU loads, but rendering a video where the CPU was 100% loaded and the GPU was about 5% loaded my CPU would drop to only 25 watts and throttle hard. With throttlestop I'm able to get 35 watts at the very most out of my CPU for long loads. I'm curious of they've done anything for the newer models so the CPU can actually stretch it's legs. It really sucks buying this i9 but having it perform worse than an i5. Even if there's PLENTY of thermal headroom.

[-] unmagical@lemmy.ml 2 points 4 months ago

I have not. I'm mostly doing webdev on it and it works fine for that. I honestly don't even need the dedicated GPU. If there's something you'd like me to run lmk and I'll see if I can find time for it. I'm running Debian stable on it and it's the i7-12700H with an RTX A1000 and 32GB 4800MHz RAM version.

Honestly I think any CPU stress test is enough for it to start to choke sooner or later. It's just faster with the GPU active. If you have video editing software you could render a long video with CPU rendering. If not I'm sure any furmark like stress test + yes > /dev/null a number of times is plenty.

The biggest thing is that it takes time. Sometimes it starts after 5 minutes, sometimes it's 20 minutes, sometimes it could be longer depending on the load. Since you're on linux IDK if lenovos tuning of TDP would apply, so you might get higher 35 watts like I can if I manually override their power limits.

I pretty much only use the GPU if I'm traveling and want to play a game. Normally I just want the CPU to do things and it's fine using 55+ watts for short loads, but I tax the shit out of my CPU for long periods of time and only 25 watts sucks on 11th gen Intel.

this post was submitted on 27 Jul 2024
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