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Old 01-05-2026, 09:13 AM   #172
JSWolf
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Join Date: Nov 2006
Location: Roslindale, Massachusetts
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Quote:
Originally Posted by DiapDealer View Post
I've never been able to discern any noticeable differences between Calibre's/Sigil's QtWebEngine rendering of epubs with its GPU acceleration enabled/disabled. I think people just seem to get it in their head that they're somehow being "cheated" by needing to disable it. *shrug*
Try running calibre on a 4th gen i5-4300U (1.9 GHz) and you'll see slower without the GPU. Also, it only has 8GB RAM.

On my main laptop, I don't see a difference without the GPU in the editor using an i7-11800H (2.30 GHz) and 16GB RAM.

Now, one other thing I've noticed is memory usage. If I load an eBook in editor in the beta, it took roughly 4GB. If I load the same eBook in 8.16.2 in the editor, it took about 2GB. I don't know if this is because calibre is no longer using the GPU and thus not using the GPU's RAM or a difference in the versions of calibre.

Last edited by JSWolf; 01-05-2026 at 09:21 AM.
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