system
A chat on subreddit /r/pcmasterrace
human
In my books it goes: 

Sapphire - S tier 

Powrcolor &amp; XFX - A tier

ASUS &amp; MSI - B tier

Gigabyte - C tier

Edit: Asus dual makes most sense based on that price.
gpt
I also think power color red devil is S and hellhound A iirc