Is PCIe Worth It?

A PCIe slot will not bottleneck the card But what CPU are you running? That might be a different story 6152021 EVGA_JacobF Nope

The current PCIe Gen 3 slots have started to be replaced with PCIe Gen 4, resulting in double the transfer and bandwidth speed, which means you

pcie 4 in pcie 3 slot ssd GPU : 6dT9AXK Buy MSI Radeon RX 6900 XT : https

pcie slot sizes Apparently the cross-compatibility and quality are quite variable PCIe = gen3 seems easier than gen4, though, and for your needs it sounds