that's weird first time to see someone recommend gigabyte cards over xfx i know that xfx manufacturing is great and it was build to resist but i will take your opinion under consideration too i guess everyone has his experience in this field
I know everyone's experience is different. I have over 60 gpus, I had 4 xfx cards, they were the worst as far as hash rate except for 1 gigabyte card (which by the way, my gigabyte cards are all 2nd worse). I say I had 4 because I returned one as it was getting memory errors at stock setting without the bios flashed, lol...
I've had the most luck with MSI and Sapphire cards.