Comfy-Org / Comfy-Org/ComfyUI

SD models use more vram than XL models?

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Description

I'm not sure if this is a bug or if I don't understand something. But when I generate an image with an XL model, it uses less VRAM than if I use the same settings and switch to an SD model.
To make sure everything is clean, I restarted the server every time.
The results are shown in the screenshots.

Has anyone else observed this behavior?

SD:
![sd](https://github.com/comfyanonymous/ComfyUI/assets/30246258/9c597b4b-23d3-4be3-8ae7-5b0bee9dfd72)

XL
![XL](https://github.com/comfyanonymous/ComfyUI/assets/30246258/2adb1e2e-b46a-49fd-8cb8-f46bb3a1a3ae)

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