R9 280x vs Gtx 760/Gtx770

[sh4c4w]

As stated on the title iḿ currently trying to decide between those 3 vgas.
Budget is definitly a problem since in Brazil computer stuff is extremely overpriced.

My build is

i7 4790k
Asus Maximus VII Hero
Zalman 700W
Corsair Vengeance Pro Red 2400mhz 2x4gb

I would like to hear opinions

[glo]

As stated on the title iḿ currently trying to decide between those 3 vgas.
Budget is definitly a problem since in Brazil computer stuff is extremely overpriced.

My build is

i7 4790k
Asus Maximus VII Hero
Zalman 700W
Corsair Vengeance Pro Red 2400mhz 2x4gb

I would like to hear opinions

The 280x and 770 are as even as it gets, so it comes down to brand preference. The 760 is a tier below both of them.

http://anandtech.com/bench/product/1041?vs=1037

That said, I'd personally go with the 280x for the extra VRAM and higher membus in case you get a higher resolution display later down the road.

[Stormspark]

The 280x is *slightly* ahead of the 770. It depends on what you're doing. If you need PhysX or CUDA, then you will need to go with the Nvidia. Otherwise they are pretty close to being equivalent.

[Chingylol]

Imo go for the 280x. The 1 extra VRAM on the 280x is the safest bet if you plan to have the card for a few years since current games are starting to need 2GB min VRAM.