I used BitCrack with the same base command but manually tuned the -t, -b, and -p values for each GPU. I gradually increased these parameters until the GPU either crashed or was about to crash, then backed off slightly to get the maximum stable performance.

Someone in the group chat managed to push their RTX GPU to about 5356.87 MKey/s, which is higher than what I got. They were likely using a different GitHub project like KeyHunt-Cuda, which can sometimes achieve better raw speed. However, in my tests, I noticed that KeyHunt-Cuda occasionally skips some keys, especially with test/fake keys, which could lead to missing targets.

BitCrack, on the other hand, is very thorough and doesn't skip keys, so I prefer it for reliability, even if the speed is slightly lower