What is thermal throttling and how does it affect frame rates?

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What is thermal throttling and how does it affect frame rates?
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Thermal throttling is what happens if your PC gets too hot. It slows itself down to prevent permanent damage. Here's how you can prevent both.

If you’ve ever been playing a game just fine and then found your fans spinning up fast and loud and your frame rate tanking, you may have become a victim of thermal throttling . It’s when your processor, graphics card, or some other component feels it’s getting too hot to continue safely, so it lowers its speed to keep itself running and alive.

Modern processors and GPUs have more nuance in their throttling, so you may only see a small drop in their clock speed if they start to overheat, while older designs could drop to base clocks, leading to a massive reduction in the raw performance of your system.

However, if your CPU or graphics card is thermally throttling because their cooling is inadequate, the thermal paste has run dry, your system is clogged with dust, or the ambient temperature is too high, you could see a much more dramatic change. FPS can crater, so a smooth game starts to look like a slideshow, and in some cases, you might just see the game or graphics driver crash. In the worst case with runaway temperatures, your whole system might restart.

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