RTX 5080 Test with HEAVY Workload in Davinci Resolve

TLDR: The RTX 5080 and the new encoders slice through Optical Flow Slow Motion and heavy Dehancer film emulation like butter even with 10-bit 4:2:2 HEVC. All clips shot by me on the Sony A7IV at 24fps, and drone shots on the DJI Air 3 at 10 bit HEVC

By the wildest stroke of luck on Friday. I managed to snag a returned RTX 5080 at my local Best Buy. My 2080ti had just crapped out and the 3080ti I planned on running wasn’t going to work out.

My previous setup was a dual GPU, with the Arc A380 for 10-bit 4:2:2 acceleration in HEVC since previous Nvidia cards didn’t support hardware decoding.

Last bit of critical background. My A7IV doesn’t record full frame framerates over 30fps, so I depend on Optical Flow in Davinci resolve when I want to slow things down a bit, even more than Topaz Video AI because of the ability to stay within the editor. Also all my color grading is done with Dehancer, which is incredibly taxing on the GPU. Using both together would result in my 2080ti begging for mercy, managing no more than 1 to 7 fps playback without proxies.

The 5080 doesn’t miss a single step. As shown in the video above it maintains full frame rate playback without proxies, and any stuttering you see comes from the screen recording with Snipping Tool.

ps, Handbrake conversion is also wild. It managed to shrink this video from 511mb to 30mb at over 140fps using the nvenc h265 preset.

I know this is a controversial generation but if you’re a creator coming from an older card, or if you want to get rid of your dependence on a secondary Gpu for Intel Quicksync, it really is a massive leap in performance.

Full specs: RTX 5080 FE, 5950X, 64gb 3600 CL 16, 850W PSU.