Mummelmann on 06 May 2015
I'm seriously considering a R9 390, it'll likely be fairly reasonably priced and should easily beat the 980GTX on performance. With liquid cooling, it might not make the same sawmill level noise than AMD cards seem to make and the extra wattage is of no concern in practical terms.
If the rumors of this card being better than the Titan X; I don't think it's even worth discussing which card to get this year.
I do hope they'll release it quite soon though, I'm itching to build a new rig as soon as possible.
