building 4x 4090 rig

[Chick3nman]

You are absolutely right. And to avoid such a situation, you need to use rules or use another type of attack. I'm sure the same thing will happen to you if you install your GPU in pci-e slots. And there will be no difference...

This is simply wrong. The difference between x1 lanes at 3.0 and x16 lanes at 4.0 is almost 32x faster. PCIe x1 @ 3.0 maxes out at ~1GB/s, x16 @ 4.0 can do 31.5GB/s. You can push a hell of a lot more candidates per second to your card with x16 @ 4.0 than you can with x1 @ 3.0.



I implore you to read through the FAQ link: https://hashcat.net/wiki/doku.php?id=fre...king_speed

Even on very old GPUs, the difference can be 15%+ performance loss at x1. Yes rules can latency hide by amplifying, but raw chunk load speed is still important because rules and amps are not always feasible.