Hi there just get at a bargain price new ZOTAC 1070Ti AMP EXTREME but have quite old pc cpu 3570k@4,4Ghz+ asus sabertooth z77 and 32GB cl10 1866Mhz. I'm just worried how bad this processor will be bottleneck that GPU. For now im use ROG Strix GTX 1060 OC edition 6GB.
Yeah the 1060 already is quite enough for your cpu... I don't think you will get a lot more fps with a 1070ti, maybe in a few games.
But in an upgrade perspective, you could still use the 1070ti when you want to upgrade in a few years. It all depends on you, but I don't think the card will give a lot more performance, maybe more stability at best.