zshadez
It's funny how in trying to be reasonable you're generally insulting instead. You don't know the setup in question, so defaulting to "e-peen" comments is childish and helps no one.
My setup is either to 3440x1440 or 4k, in either case a good overclock on the 1070 is generally the difference between choppy and smooth framerates. Gameplay is noticeably much better with the OC, I'm finally stable above 60 on my primary monitor.
The OP reported a +85 MHz overclock. His e-peen better reported +170, and suggested that the OP RMA his card. Think about that. EVGA sells a card as factory overclocked by over 100 MHz as compared to the base model. And the card clearly achieves the advertised speed stably. In fact, he achieves that and an additional 85 MHz. That's pretty good value for money, and EVGA's card performs better than advertized. So, what's the justification for an RMA? You do realize that with an RMA EVGA is going to lose money, right?
But consider the difference between an 85MHz overclock and a 170 MHz overclock. Starting at 1708 base clock for the out-of-box SC, add 85 for the OP and 170 for the guy who thinks the OP is entitled to make EVGA lose money on a card that works better than advertized. That's 1793 MHz as opposed to 1878 MHz. Dividing those we see about a 4 1/2% difference. If the guy with the longer e-peen is getting 60 fps on his 4k monitor the OP is getting 57 or 58. In practice you're never going to see that 2 fps difference.
And that's assuming that the boost clocks are even all that different. I don't recall seeing them compare actual achieved boost clocks under load. We're just assuming that the guy with the higher offset to the base clock is actually getting a 4 1/2% advantage, but I haven't seen the proof that he really is.
Trust me about 4K, I feel it too. I'm running a 4K monitor with a Geforce 960 SSC right now, and feeling the pain. After playing The Division for a week at 20-30 fps I've bit the bullet and down-rezzed to 1080p just so I can peg it at 60 fps for playability. I'm trying to buy a 1080 SC as well, and have been glued to the websites for several days now trying to catch one in stock. I appreciate the advantages of buying a faster card. That's why I'm trying to buy one, like so many others.
My whole point is that with so many of these guys it seems as if the most important thing to them when they first pull it out of the box is just how much further than stock they can push their overclock, as if the overclock itself were the end, and not just a means to an end. If the true end is more playable quality and framerates in games, then a little common sense kicks in. If my overclock ends up being 50 MHz lower than the next guy's, then yeah, I suppose he wins the e-peen contest, but all other things being equal, he might see 1 or at most 2 fps advantage over me in any games we might play. That's just not a big deal, and certainly not worth losing sleep over. With these things the law of diminishing returns applies. What are you willing to do for that last 20 or 30 MHz of overclock? And what if you achieve that last 20 or 30 MHz of overclock? What real world performance actually using the card have you gained?