Normally is the other way around since is the GPU that counts the most in gaming.
But, yeah, kinda. That CPU is pretty strong and the GTX 970 has already started to show its age on current games.
Nevertheless, if you're playing @1080p you won't notice much(or at all) bottlenecking due to the card still being viable at that resolution, but if you step hight than that, then you'll start to be left behind.
Still, not a problem if you ask me unless you're aiming to upgrade the GPU to a 1070 or higher and @1440p. since the jump to a 1060 isn't very beneficial.
But its up to you, no problem whatsoever comes from bottlenecking aside a bit of lag here and there while gaming.