Question Graphics Card performance significantly worse after hours of use.

Aug 29, 2019
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Hi there! I purchased an rx 580 Sapphire Nitro+ 8GB at the start of this year. I have had a couple problems with this card, some relating to the voltage settings in wattman, etc. The card works great now, but I have an issue. After a couple hours of use, I will load into a game, particularly Overwatch, and the gpu will be throttling or something. Normally, I get a stable 155 fps, with dips relating to the CPU (2400g). But when this issue happens, I am limited by the Gpu (overwatch shows three dots when gpu-bound) and cannot break 120 frames, sometimes even dipping to 90.

The only way to fix this is to first go to wattman, set the voltage to 45%, apply, then back to 50, and restart my pc. Any advice would be appreciated.
 

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