AMD Radeon RX 6900 XT TRUE performance! vs RTX 3090, vs RX 6800 XT (Stock, no Rage Mode, no SAM)

At AMD's announcement, AMD's RX 6900 XT performance chart showed Rage mode (overclocking) and SAM mode on (Smart Access Memory), but that's not a fair fight is it? So I decided to do some calcs and compare the stock performance of the RTX 3090 and the RX 6900 XT as well as the RX 6800 XT as well. I think this is particularly relevant to many people who don't have or aren't actually getting an AMD 5000 series CPU and won't be able to take advantage of the SAM mode. Slides - https://www.anandtech.com/show/16202/amd-reveals-the-radeon-rx-6000-series-rdna2-starts-at-the-highend-coming-november-18th AMD announcement - https://youtu.be/oHpgu-cTjyM My previous video on AMD's Infinity Cache, 256 bit memory bus and 16gb vram - https://youtu.be/gA8HQWryfBs Chapters 0:00 Intro 0:56 RX 6900 XT Specs 2:23 RX 6900 XT Performance with Rage Mode on and SAM on 2:47 Rage Mode and Smart Access Memory explained 3:17 Rage Mode and Smart Access Memory additional performance 3:45 RX 6900 XT vs RTX 3090 with Rage Mode and SAM off (both @ stock) 5:09 RX 6900 XT vs RX 6800 XT 6:19 Thoughts on RX 6900 XT pricing vs RX 6800 XT