You can clearly see this in many tests—once the NVIDIA card runs out of VRAM, it drops much harder than AMD's Radeon—quite unexpected. Part of the reason for this could be that the NVIDIA RTX 5060 and 5060 Ti use a PCI-Express x8 interface, which offers only half the bandwidth of x16 on the RX 9060 XT. While this doesn't matter much for normal gaming, it becomes a bottleneck when out of VRAM, because the VRAM overflow will get copied to system memory. The GPU needs the bits for every frame though, so data is flowing across the PCIe bus at a high rate when VRAM is scarce, which of course means that available PCIe bandwidth becomes more relevant. I'm not fully convinced that this the whole answer. In my testing of the RTX 5060 8 GB models I noticed that they generally fail sooner and harder than competing GeForce 40-series 8 GB models, which is unexpected.
:
