For me it has kind of the different effect, -w 4 is even slightly faster than the benchmark with -b , because benchmark doesn't use -w 4 by default.
If you want to troubleshoot here are the relevant options that hashcat uses in benchmark mode:
https://github.com/hashcat/hashcat/blob/...1600-L1628
https://github.com/hashcat/hashcat/blob/...#L446-L451
I would also recommend to test with the beta version from here (https://hashcat.net/beta/) also because the code above is the current one that the beta uses (such that we have a reference).
The -w 4 (your run above0 vs -w 3 (the default in benchmark) is what makes the difference in the loops (-u) above. but again, normally -w 4 should be faster than -w 3 so it must be something else.
Did you also try just benchmarking with 1 device ? -d 1 -b -m 5600 and -d 2 -b -m 5600 ?
The Fan speed says 0% which is also suspicous. Any reason why there is NO fan ?
btw: the initial discussion was here https://hashcat.net/forum/thread-8768.html , not sure if we really needed a new forum thread for this
in theory you could also test newest beta with CUDA (install the CUDA SDK) just to eliminate some possible OpenCL related "problems"... you also didn't really mention which driver version you are using, which might also be relevant here (or maybe the problem lies somewhere completely else, also possible)
If you want to troubleshoot here are the relevant options that hashcat uses in benchmark mode:
https://github.com/hashcat/hashcat/blob/...1600-L1628
https://github.com/hashcat/hashcat/blob/...#L446-L451
I would also recommend to test with the beta version from here (https://hashcat.net/beta/) also because the code above is the current one that the beta uses (such that we have a reference).
The -w 4 (your run above0 vs -w 3 (the default in benchmark) is what makes the difference in the loops (-u) above. but again, normally -w 4 should be faster than -w 3 so it must be something else.
Did you also try just benchmarking with 1 device ? -d 1 -b -m 5600 and -d 2 -b -m 5600 ?
The Fan speed says 0% which is also suspicous. Any reason why there is NO fan ?
btw: the initial discussion was here https://hashcat.net/forum/thread-8768.html , not sure if we really needed a new forum thread for this
in theory you could also test newest beta with CUDA (install the CUDA SDK) just to eliminate some possible OpenCL related "problems"... you also didn't really mention which driver version you are using, which might also be relevant here (or maybe the problem lies somewhere completely else, also possible)