Possible to mix few RX580 of Asus and few of Gigabyte?

[Rasenga]

Is it possible to have 3 cards of Asus and 3 of Gigabyte all RX580 8GB at the same rig?
Some cards are 1340Mhz and some are 1420 so it will lock on 1340 right?
Thanks! 

[Vann]

You can mix different cards and brands on the same rig. Any core/memory overclocking or undervolting settings will need to be done for each card separately unless you hard code them in the Bios of the cards.

[Rasenga]

You can mix different cards and brands on the same rig. Any core/memory overclocking or undervolting settings will need to be done for each card separately unless you hard code them in the Bios of the cards.

Not planning to OC them, they come OC'd already and I don't have the best warranty for them so better keep them running for as much as possible.  

[Vann]

The stock clocks are set for gaming performance which has nothing to do with mining performance. The core frequency is set too high by default. It will reduce the hash rate of your cards and likely be unstable for mining if you just run the cards at the default settings. Running the cards at the default power settings is just increasing your cards power consumption, lowering your profitability and heating up the cards.

[Palmerson]

The brand of the GPU doesn't matter. I have working on the tower at the GPU from 3 different brands. Moreover, I use 480 RX, RX 580, R9 350. They all work without problems. I use modified under the mining driver, and GPU all work smoothly. In R9 I can't even change the BIOS.