A comparison vs Navi10 cards. Stock vs stock, OC vs OC. Check for undervolting on Navi10 since AMD is nuts and always goes bonkers on the voltages by default and losing performance because of it. You may actually get better OC with lower volts and AMD also has a registry edit for OC for higher power limit.
H264 and H265 encoder quality, performance and how many encodes at once can be run, comparisons Navi10 vs RTX (they are all probably the same encoder).
Video decoding comparison, RTX can hardware acceleration decode 8k60 VP9 from YouTube for example and 4k60 HDR VP9, can Navi10 do it?
Q2RTX performance comparison of the RTX cards.