Fair enough. I used the GPU database relative performance table which gives a very different result and makes me wonder about the accuracy of that table in general now.
EDIT: that said, it's unlikely the 6600XT is a match for the PS5 at the memory bandwidth intensive 4k as it has much less main memory bandwidth, and given its infinity cache is much smaller than the 6800's, the 6800 should fair much better at that resolution comparatively. At 1440p which puts less pressure on bandwidth, the individual card reviews I'm seeing at TPU are coming in around the 50% faster margin.
EDIT 2: Wait, were you using their actual Uncharted 4 benchmarks? If so there is no 6800 in there. I'm not sure what you were comparing to but in the actual Uncharted 4 test below, the 6800
XT is only 90% faster at 4k, 59% faster at 1440p, and 40.5% faster at 1080p. Obviously the 6800 will be a fair bit slower than that, and as we can see by those figures, the performance advantage opens up hugely with higher resolutions. From the GPU performance scaling we're seeing even at 1080p, we can't put that all on CPU limitations and so the obvious culprit will be memory bandwidth/infinity cache size which when stressed is likely going to be the area the 6600XT falls behind the PS5.
Finally, we're getting Uncharted on PC! Sony's newest PlayStation port comes with modernized graphics vs the PS4 version, especially 'The Lost Legacy' looks surprisingly good in 2022, although it's based on a 2017 game. In our review we check performance on a wide selection of modern graphics...
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