The new 8th Gen NVENC now accelerates AV1 encoding, besides HEVC. You also get an “optical flow accelerator” unit that is able to calculate intermediate frames for videos, to smooth playback. The same hardware unit is used for frame generation in DLSS 3.The thermal solution on the Colorful Ultra W uses two heatpipes. The main heatsink also provides cooling for the memory chips, the VRM circuitry is cooled by the airflow of the main cooler.
The backplate is made of metal and protects the card against damage during installation and handling.