More stats needed
Most importantly, what's it's hash? Better than a pair of 290x?
Because no-one in their right mind buys an AMD card for gaming. For mining and gaming, sure :)
I use r9 270, since you can often get 270x performance out of them, if you're lucky 500 khash/s, for ~130 watts. Depending a bit on what undervolt and overclock you can get out of them.