Having studied numerous features and tests, we learned what GeForce RTX 3080 is capable of in games, learned the details of its architecture, and also realized that when playing 4K there is no point in choosing the processor – you can buy conditional any top solution.
One more question remains: is there sense in PCIe 4.0? Recall that Ampere cards were the first Nvidia desktop adapters to support this interface. Its bandwidth is twice as high as PCIe 3.0, but does it affect the performance of GeForce RTX 3080 in any way?
As you can see, on average, there is no difference between them. The difference in speed between PCIe 3.0 and PCIe 4.0 in case of Nvidia innovation is only 1%, i.e. it can be neglected. Moreover the difference with PCIe 2.0 is also very small and the loss when switching to PCIe 1.1 (x16) is also not catastrophic.
However, it should be noted that this is the result for the current games, and Nvidia, recall, introduced technology RTX IO, allowing the graphics card to download data directly from the SSD to the GPU. And here the speed of the interface may well be critical, but so far we can not find out, as such games simply do not exist.