PCIe 3.0 vs. 4.0 in Games: A question of graphics card memory [worst case scenarios with games that use more than 4GB VRAM] | Computerbase.de [German] : r/Amd
RX 6600 XT (PCIe 4.0 vs PCIe 3.0) vs RX 5700 XT (PCIe 4.0 vs PCIe 3.0) | PC Gaming Tested - YouTube