(02-19-2019, 06:19 PM)undeath Wrote: depends on the attacks you run. For wordlist attacks (a0) with no or few rules your bandwidth will limit the cards. With those cards you might even see a bottleneck with slower algorithms such as WPA in such a case.
I came across this post by Atom - https://hashcat.net/forum/thread-7267-post-39112.html
It looks like starting from 4.1.0, hashcat now copys the data to GPU memory which makes a significant difference for GPUs on risers (PCIe x1). His example lists several algorithms with noticeable differences. I know it's a rather old post since we're on 5.1.0 now, but I wanted to point it out in case there's something that has changed since the post, and if we should be avoiding PCIe x1.