Radeon RX 7900 XTX vs Radeon RX 6950 XT

[Eugene]

Why Average G3D Mark
Radeon RX 6950 XT
29,021
vs
Radeon RX 7900 XTX
29,265
----> basically same score. WHY? G3D BenchMark insuffisient?

[David (PassMark)]

RX 7900 XTX is new and we don't have many samples yet to get a good average.

Also I suspect these two cards are very very close if you are running anything but the fastest CPU available at the highest resolutions and quality settings available.
(i.e. it is really easy for the CPU to be a bottleneck and likely it is for many people, especially at 1080p)