caydn12 :
If you can get the 7870XT! It is very good.
Otherwise look for the brands:
Sapphire, HIS, or MSI. They are the 3 that ive had best experiences with.
Sapphire and HIS are probably most reliable, but MSI is decent as well
just seen this on amazon Sapphire 11199-20-20G AMD Radeon HD 7870 XT 2GB GDDR5 Graphics Card (HDMI, DVI-I, 2 x Mini Display Port, PCI Express 3.0, 256-Bit, AMD CrossFireX Multi-GPU Technology)
whots your opinion on it plz