Think theres a miss understanding
Ive run the command you showed and it just shows my core and memory clock of each card
To be clear on my question
In Windows I get 30mhs per card with my custom bios
Im Linux I am only getting 29.5 per card with the same card. Seems like the Linux driver has a slightly lower hash rate than the windows driver. Ive heard others having that same discrepancy
The command you showed doesnt really help? Unless I am missing something?
The command I provided gives you the current clock rate. If your clock rate is same as that on windows (monitor for several minutes) then it might be just the drivers. This was happening for me when dual mining. I was hitting the power limit (had a lower TDP and Max power in my custom BIOS) and card was throttling at lower core frequencies -> leading to lower hash rates.
I'll check how much I get on mine for solo mining at same clocks on windows & linux.