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The_Dragon_Ladis
January 24th, 2026, 11:06
After the update to 5.1 I've noticed a spike in GPU usage when opening a map. I've done some testing, and it's worse on older campaigns than new ones, but as you start using the map in a new campaign you can replicate the performance degradation. Tested in both my main desktop PC and my Macbook Pro M1 and I can see very high GPU usage in both machines, with older campaigns and fresh new ones.

These are te steps I've been doing to replicate it, with FPS limited to 60, on a 4k HDR monitor.

1. Create a new campaign. 6% GPU usage in the empty main menu (high for not be showing anything, but whatever).
2. Create a new map using a 4080x2720 .jpg image (file attached for reference). GPU usage at 15%.
3. Add ambient light and 4 point lights. GPU usage to 19%.
4. Add an FX layer, rain for example. GPU usage to 22%.
5. Enable the grid and place one NPC token on the map. GPU usage to 49%.
6. Add two character tokens to the map. GPU usage to 59%.

My desktop has the following specs:
- CPU: AMD Ryzen 7 9800X3D
- GPU: Nvidia RTX 5080
- RAM: 64 GB DDR5
- Monitor: 4k HDR 240hz

Screenshots:
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The_Dragon_Ladis
January 24th, 2026, 11:07
Screenshots (part 2):
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Just for reference, the same image, with token, walls, lights and a rain FX is using 9-10% GPU on FoundryVTT.
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Moon Wizard
January 24th, 2026, 16:52
Per your discussion with Carl on Discord; this is on his list to review once things calm down a bit from the last release.
https://discord.com/channels/274582899045695488/692116657858150410/1463950921145778310

Regards,
JPG

pindercarl
January 28th, 2026, 00:37
Screenshots (part 2):
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Just for reference, the same image, with token, walls, lights and a rain FX is using 9-10% GPU on FoundryVTT.
66351

Thanks for all the info and the assets. I have a lower spec machine (GeForce 2060 at roughly the same resolution) and I hit 79% GPU usage with your sample scenario. I've been working on reducing the GPU usage and I have it down to 34% locally. I'll to do some more poking about to see if I can reduce it further.

Asgurgolas
January 29th, 2026, 15:45
RTX 2060, this is FGU with game map loaded. I think I might want to skip tomorrow's game ��


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pindercarl
January 29th, 2026, 15:59
RTX 2060, this is FGU with game map loaded. I think I might want to skip tomorrow's game 😅


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Is this with the update from yesterday? v5.1.1(2026-01-28)

Asgurgolas
January 29th, 2026, 16:12
After tweaking Nvidia's control panel, I managed to tone it down to about 60%
After updating again (I didn't update yesterday, so I just did) it's more stable between 30 and 40%

This is good, thank you