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<div>Hi all, <br>Ever since I got my Macbook Pro (16-inch, 2019, 2.3GHz 8‑core Intel Core i9) I noticed the fans can go full bore for seemingly small tasks. ChimeraX is one of those - swinging a protein view around is enough to set them off, and Activity Monitor reports around 200% usage for the "UCSF ChimeraX" process. I can see that GPU usage on the inbuilt AMD Radeon Pro 5500M can get up to about 50%, too. The bottom can get quite hot - it's Summer here now, but this happens in Winter too. <br><br>A couple of questions:<br>- Is this expected (for ChimeraX, not generally)? Do other people experience this? <br>- Does ChimeraX use the GPU for rendering? If so, what's driving the CPU spike when I move the protein on screen? Is it just from calculating the coordinate rotations?<br><br>Thanks, <br>Lewis</div>
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