RTX 5080 and RTX 3090 Setup: 80 Tok/s on Qwen 3.6 27B Q8

Re:RTX 5080 and RTX 3090 Setup: 80 Tok/s on Qwen 3.6 27B Q8 by well_ackshually on Saturday June 13, 2026 @01:23PM (#48519365)

It does come with one tiny little issue: it now draws 700W on full load. Just a single 5080 is enough to measurably heat up a room when loaded (320W draw at the wall on mine), and with that amount of power flowing through, you better have a good PSU as well as checking your power plugs themselves, these are going to get HOT when your entire setup is basically drawing 1kW.

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Re:RTX 5080 and RTX 3090 Setup: 80 Tok/s on Qwen 3.6 27B Q8 by iMil on Saturday June 13, 2026 @02:13PM (#48519898)

I am actually surprised with the power draw, the box itself idles at 20W, which already amazes me for a Ryzen; when computing, I barely pass the 600W bar, and as I am not really using it to vibecode an entire system, I don't even notice the spikes on the power monitor (Shelly + homeassistant).

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Re:RTX 5080 and RTX 3090 Setup: 80 Tok/s on Qwen 3.6 27B Q8 by washadjeffmad on Saturday June 13, 2026 @06:50PM (#48522286)

I've got a 4090 and 3090 in a node that peaks at 600W.

If you're not power limiting in nvidia-smi, start.

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