What Graphic Card should i buy?

Go for the 1070 and you should be good. As said by another user theyre overpriced rn so Id get it from eBay or a site with discounts. Enjoy yourself

Gtx 1050, hands down, lower price, best performance (for his price)

there is no substitute for the 1080. Buy it, love it.

Get the GTX 1080 TI, or the Titan X. Both are great cards c:

I would like of course 1080, but I sit on 1070. Quite good for its price

you can get a 1050 or 1060 they a decent and not too pricey

1080 GTX, if you can get it cheaper...
Always i would use Nvidia and not some other crappy Cards... :monkey:

Here ya go ..this may help you out..

GPU Performance Hierarchy: Video Cards Ranked from Fastest to Slowest
ScoreGPU
Nvidia GeForce GTX 1060 6GB56.4GP106
Nvidia GeForce GTX 1060 3GB45.3GP106
AMD Radeon RX 57051.5Polaris 10
Nvidia GeForce GTX 1050 Ti33.6GP107

I'd say buy 1070. I have VR rig and 4k display, everything runs smoothly on my GTX 1070.