How conveniently to use only the graphs that fit your claim?
This card has 6 GB of VRAM, which is still better than the 4 GB found in both RX 6400 and 6500 XT.
Also, when showing that 1K result, you should clarify that's the current AMD driver helping.
But if you take a look at the more serious graphics loads where the card is pushed to its limits, you will see that you are wrong:
4K:
View attachment 335989
This is without even mentioning that the poor RX 6400 and RX 6500 XT lack features such as AV1, H.262 MPEG-2, JPEG, video codec accelerators.