So different GPU architectures handle different workloads better than others. Nvidia tends to balance out their cards so they are pretty well rounded. It's boring, but consistent. The radeon 6000 series on the other hand is clever, using the infinity cache to boost its performance way beyond what it would otherwise have been. But that does come with some quirks. The 6900 XT is an absolute BEAST at high frame rates, but if you throw a very large high resolution frame at it, it can be too large for the infinity cache and force it to lean on more on its traditional vram. This will cause performance to suffer a lot. You were probably encountering that exact scenario with high internal resolution and SSAA settings.
![[Image: RPvlSEt.png]](https://i.imgur.com/RPvlSEt.png)
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