Valve warns of Steam Deck throttling when used in extremely hot environments

If you are one of the lucky gamers to own a Steam Deck (opens in new tab), you may want to heed this warning from Valve. The company has strongly implied that users should not use the portable gaming PC in temperatures above 35°C as the device could reach its thermal limits and slow down or simply shut down.

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The custom AMD APU in the Steam Deck is designed to operate up to 100°C with no questions asked. That seems high enough to withstand all outdoor conditions, but it’s all about the temperature of the ambient air. In our testing, the deck’s silicon reached about 60-70°C during gaming, although it has been known to rise to about 80°C with less aggressive fan profiles. This means that large fluctuations in the outside temperature can cause headaches.