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Boost from 2xGPUs on different PCI-E buses - Printable Version

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Boost from 2xGPUs on different PCI-E buses - greywinged - 11-21-2023

Is there some performance boost from multiple graphics cards on different PCI-E buses

Describe question
At the moment, in hashcat increasing count GPUs to 2 will allow you to increase bruteforce speed, for example (h/s * 2.05) or (h/s * 2.1) and etc. or it will be like this ideal (h/s * 2).
I am also interested in whether PCI-E bus link widths from 4x to 16x and version from 3.0 to 5.0 affect hashspeed.