x264 - Video Strategy - Constant Bitrate?

In many Voukoder screen captures I've found while searching I see a Strategy option for Constant Bitrate (CBR). Where did this option go? After installing Voukoder and accessing it from Premier I only see VBR, CRF, and CQF as video strategy options.

Is there still a way to specify a constant bit rate for video when encoding with x264 or any other ecoder choice in Voukoder?

Thank you.

I appreciate the reply. That helps. I just needed to update my driver then NVENC showed up as an option. Thank you.