In this video I test out the Cinematic RTX Option in Cyberpunk 2077, I notice some slight improvements in RTX quality in some areas, and I also noted ad additional 1-2 GB of V-ram being used with the option turned on after driving a little while. But the nice thing is I'm not noticing any noticeable decline in FPS compared to just regular RTX being used, but in some areas, there is not much of a difference really.
This was with my Ultra Optimized settings and DLSS set to balanced mode. HDR was enabled for this video. The GPU used was an Asus TUF RTX 3090 with a 71 mhz core OC, and 540 mhz memory OC. The Nvidia control panel texture quality set to high quality, and Nvidia latest hot fix drivers version 460.97 on my RTX 3090. And my Ryzen 9 5950X at stock with PBO enabled, along with using 32 GB (2x 16GB) of G.Skill Royal Z memory 3200 mhz CL14 dual rank memory. Recorded with Nvidia shadow play.