Bayangan :
IF 290x as fast as titan x in dx12, 270x will be as fast as? (dx12)
depends if that game uses async, my 290x does worse in rise of the tomb raider in DX12 as it doesnt have any async support.
the 270X will be somewhere up in the 970 range if the game supports async, ashes of the singularity is the only game i currently know of that supports async