Recently, I switched from an RTX 3090 to an RTX 5080, mainly because of 10-bit support, as I work with this kind of footage on a daily basis. After installing the card, I did a test render and found that render times were 6–7 times slower than on the 3090, which was really weird. I tried everything I could think of to fix it, and I even formatted the C drive, but nothing helped. In general, Premiere Pro (26.0.2) uses only about 5% of the encoding capacity, while an older version, such as 25.2, uses about 11–12%. I also tested HandBrake, and there the GPU was being used to its full potential. The same raw clip took about an hour to render in Premiere, while HandBrake finished it in 7 minutes. Timeline performance is also significantly better on the 5080 than on the 3090, and I pretty much no longer need proxies. However, when it comes to final rendering, my iGPU can now render faster than the 5080. Do you have any idea why that might be?Specs:CPU: i9 13900KRAM:128GB DDR4 3600 MHzGPU: RT
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