Yes, if you have an RTX graphics card, the Optix driver in the settings preferences is what you should be using. Latest versions allow you to incorporate the CPU to help with the rendering as well, even in GPU mode. I would also recommend trying out the Intel Denoiser node in the composite tab. I've actually found this to be even faster than Optix denoising on certain scenes. Of course, it will depend on your grahics card. I have an RTX 2070 Super. If you have a 2080 or 30x series, then Optix denoising might be better.

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