No

if 3770k is bottleneck, then what next to change?? 6950x??

I use i7 2600 and still don't see any bottleneck. The only thing I upgrade frequently is my graphic card. You should use monitoring program like Afterburner, to monitor the usage of your CPU, GC, RAM, VRAM, so you can tell which caused the bottleneck if any. I am currently using R9 390.

Sandy/Ivy Bridge i7 CPU will hardly bottleneck any latest GC today, unless the game you're playing is really intensive on CPU. But most of the time, CPU intensive games aren't GPU intensive. Even so, you should be at higher than 60 FPS with any CPU intensive game.

With your specification, 3770K + 1070 on 1080P is already overkill enough. You should be fine for few more years, and can max out most if not all games out there (excuse the bad optimized ported games tho) .

If you're coming from 6850 to GTX970 you actually will already see a massive performance bump. But going to the 1070 from 6850 is crazy man. You'll be happy if you do so, trust me.

Thanks for the share Samurai. Impressive. Can't wait for this thang. I'm hoping the price on release, is going to be the same or a little bit expensive than GTX970 at launch. It's a still a steal nonetheless. I mean, faster than Titan X, while being a lot cheaper? Damnnn son.