Hey guys and girls!
Have recently come into some money that I've been looking forward to and it seems next/this week I'll finally be able to purchase a new GPU which is sorely needed. (My old HD 4870 512mb is on her last legs)

Seeking opinions on which R9 270x I should go for.

Sapphire R9 270x Dual-X
or
Asus R9270X-DC2T

Wondering if anyone can share their wisdom on their respective aspects. Warranty / Customer Service / Quality / Overclocking etc.

The Sapphire is roughly $20ish cheaper than the Asus, though with saying that, I'm alright doing a little extra $ if the Asus is worth it.


Side note: Any info that can be shed upon overclocking pre-overclocked cards would be welcome, if I can get much more performance out of them or if it's not worth it.