Guild Wars 2

Thank you for your answers. After i made some readings i think I will go for gtx 670. I will buy the pc next week. I will post the fps that i get in gw2.

I need you to help me choose a gpu from this two. I specify that i want the one that is the best for GW2 at 1920×1080 resolution with max video settings.

AMD Radeon HD7970, 3072MB, GDDR5, DVI-I, PCI-E
nVidia GeForce GTX670, 2048MB, GDDR5, 256bit, HDMI, DVI, PCI-E

My system specs will be:
Intel Core i7-3770K IvyBridge 3.5 GHz Socket 1155 box
Asus P8Z77-V Socket 1155
16 GB Kit Corsair Vengeance Red 4×4GB DDR3 2400MHz CL10
SSD Kingston HyperX 3K 120GB SATA3
Chieftec Smart II 700W

Till now i found this as relevant info:
http://www.tomshardware.com/reviews/guild-wars-2-performance-benchmark,3268-6.html
https://www.guildwars2.com/en/news/bill-freist-talks-optimization-and-performance/

In both 7970 wins (not by much).
So help me decide pls.

Im from Romania and i’m searching for a populated server where english language is spoken. Please suggest me one.
There are 27 european servers.