1080 isnt a 4k card, and a single 1080ti can scrape 60fps at 4k with some current games(obviously as time goes on that will be less the case). Now if you could do 1440p a 1080 will be good (maybe a 1070ti too)and a 1080ti will get you high frames if you want 144hz or something.

If 4k 60 is your only goal, wait and see what the new cards can do or do sli but that isn't gonna be supported in all games.

I'm currently using a 1080ti with a 4k monitor. I find it is a good combo and the GPU has had little issue hitting 60 fps in the games I have played (Destiny 2, Wolfenstein 2, etc.). At most you will have to turn down a couple settings such as anti-aliasing, but you don't need AA very much at 4k anyway. If you are wanting to make use of 4k right now that is what I would suggest. I used to be running a 1070, but I had to turn down a lot of settings to hit 60 fps with it.

I'm sure the 1180 will be better than the 1080ti, but I'm not sure how much better considering AMD has no competitive GPUs which also leads to me not being sure how long it will be before the next generation is finally released since Nvidia has little incentive at the moment.

I have a 1080, not TI, and i can crush pretty much any game at 1080p, but even some newer games will dip into the 40's at max settings. You may be able to get good FPS at 4k, but resolution does not equal high settings, and with whats currently available I think you'll be making more compromises than you'd want to.

@gtb08: What CPU are you using? I would guess that it is likely CPU bottlenecking. Especially if the game is AC:Origins.

You can generally get a solid 60fps at 4k with a 1080Ti, but you'll probably have to tinker with the settings on newer, graphically dense, or poorly optimized games. It doesn't just utterly crush 4k as well as one might hope. I'm pretty happy with mine, yet I can't help but wish it had just a little more kick at 4k. If you're willing to wait it might be worthwhile to do so. I don't know anything about the next generation of cards. Based on my experience with the 1080Ti, I can't see a 1080 or 1070Ti handling 4k all that well.

Right now I am getting by on the well outdated Titan black. It's actually served me pretty darn good, but it is outclassed by todays standards. My strategy is to hold out for the next NVidia card series, both to extract the last bit of value, and to get something next that should give me some headroom and performance for 4K.

Absolutely wait for Volta or you will regret it - unless you are totally flush with cash and regret isn't going to be an issue.

I have a 1070. For the most part it destroys 1080p, and should do so for years to come, even without an overclock. It probably would've been fine for 1440p, too, but I chickened out of getting a PG279Q for several reasons (money, wanting a longer lifespan before upgrading, the appeal of thoughtlessly bumping everything up to ultra in every game ever and brute-forcing through poor optimization, not wanting to render a 1080p picture on a 1440p screen if it comes to it), so I guess I'll never know for sure.

The 1080Ti seems like it can do 4K at ~60fps for now, but you'll probably find yourself having to do something more thoughtful in video settings menus than just maxing everything out in the not-too-distant future. If you want a card that'll destroy 4K, I don't think that card exists yet, unless you get a good overclock on a 1080Ti maybe?

If you can't wait to see what Volta has to offer, it might be worth considering getting an EVGA 1080Ti card and leveraging their step-up program, if you're in a supported country. It seems like Volta is expected to arrive Q1 2018, but that might not end up happening. Or you could buy a 1080Ti with the intention to sell and upgrade later.

As a final remark, 4K HDR in the PC gaming world is lagging far behind the home theatre market. 4K HDR adaptive sync monitors have been pushed back to some unknown 2018 release period, they'll be super expensive when they do release, and there are currently format wars over HDR and adaptive sync that'll make me hesitant to make the plunge at least until G-Sync finally dies. (I say this as someone who forked out for a PG248Q: the sooner the industry backs Nvidia into a corner and forces them onto the FreeSync bandwagon, the better.) What might finally sort their shit out is HDMI 2.1 arriving in the home theatre market, which has a variable refresh rate standard built in and might be here in 2018, but 2019 seems more likely.

@the_devoid: ive got an i7 4770, thought id be fine with that still