Answer: PCIe 4.0 is the latest iteration of PCIe to get a commercial release. It offers double the bandwidth than that of its predecessor, PCIe 3.0. However, it only hit the market recently and it offers virtually no benefits when it comes to actual in-game performance right now.

Does PCIe 4.0 affect performance?

There is a slight curve in Redshift, with about an 8-second slowdown from PCIe Gen4 to Gen1 on the RTX 3090 and 5 seconds on the Titan RTX. ... The speed of the PCIe bus is going to impact how quickly the data can be moved back and forth, but won't impact the actual computations happening on the card.

Will PCIe 4.0 make a difference?

The main benefit of PCIe 4.0 SSDs being faster not only gives quicker loading times in some games, but it also translates to a much snappier operating system. You can expect instantaneous boot times with the latest NVMe drives if it houses your Windows, Linux, or macOS and fast loading of programs.