Gaming At 3840x2160: Is Your PC Ready For A 4K Display?

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We got our hands on Asus' PQ321Q Ultra HD display with a resolution of 3840x2160. Anxious to game on it, we pulled out our GeForce GTX Titan, 780, and 770 cards for a high-quality romp through seven of our favorite titles. What do you need to game at 4K?

Results: Battlefield 3

Surprised to learn that a $1000 GeForce GTX Titan won’t get you consistently playable frame rates in Battlefield 3 using the Ultra quality preset? At least based on the averages, we’d be most inclined to go with a pair of 780s for slightly more. Two Titans won’t necessarily give you the return on your investment in this game.

This is but the first time you’ll see strange behavior from two GeForce GTX 770s in SLI. The GF104-based cards react to all of the same peaks and valleys that the other combinations convey—they just exaggerate them. In order to investigate, we fired up EVGA's Precision X and logged memory usage at this monster resolution and the demanding settings that go along with it. What we found is that certain titles need more than 2 GB of on-board memory, and it isn't difficult to freak the 770s out by going over.

That behavior aside, we see one Titan maintain more than 30 FPS throughout our single-player run, while two GeForce GTX 780s keep their noses above 50 FPS the whole time.

Erratic behavior translates into an outlier worst-case reading from two GTX 770s, though their average variance isn’t particularly worrying. The other three configurations perform really well on paper, though the huge 3840x2160 resolution makes it very easy to see any time the scripted sequence we test hitches.

Chris Angelini
Chris Angelini
Chris Angelini is an Editor Emeritus at Tom's Hardware US. He edits hardware reviews and covers high-profile CPU and GPU launches.
104 Comments Comment from the forums
  • RascallyWeasel
    Is it really necessary to use Anti Alaising at this resolution? If anything it would only hurt average FPS without really giving much of a visual increase.
    Reply
  • RascallyWeasel
    Would of enjoyed seeing the 79xx series take a crack at this.
    Reply
  • expl0itfinder
    Yep, now hold on while I go order my SLI Titans. Anyone got $2K I can borrow??
    Reply
  • ubercake
    Great review! It's good to see this information available.

    I know you want to leave AMD out of it since they still haven't completed the fixing of the runt/drop microstutter issue through promised driver updates (actually, I thought it was all supposed to be done with the July 31 update?), but people constantly argue that AMD cards would be superior because of this or that on 4K. Maybe after they release the new flagship?

    At any rate, I won't buy a 4K 60Hz screen until the price drops under the $1K mark. I really wish they could make the higher res monitors with a faster refresh rate like 120Hz or 144Hz, but that doesn't seem to be the goal. There must be more money in higher res than in higher refresh. It makes sense, but when they drop the refresh down to 30Hz, it seems like too much of a compromise.
    Reply
  • CaedenV
    Hey Chris!
    So 2GB of ram on the 770 was not enough for quite a few games... but just how much vRAM is enough? By chance did you peak at the usage on the other cards?

    With next gen consoles having access to absolutely enormous amounts of memory on dedicated hardware for 1080p screens I am very curious to see how much memory is going to be needed for gaming PCs running these same games at 4K. I still think that 8GB of system memory will be adequate, but we are going to start to need 4+GB of vRAM just at the 1080p level soon enough, which is kinda ridiculous.

    Anywho, great article! Can't wait for 4K gaming to go mainstream over the next 5 years!
    Reply
  • shikamaru31789
    So it's going to be a few years and a few graphics card generations before we see 4k gaming become the standard, something that can be done on a single mid-high end video card. By that time, the price of 4k tv's/montors should have dropped to an affordable point as well.
    Reply
  • Cataclysm_ZA
    So no-one figures that benching a 4K monitor at lower settings with weaker GPUs would be a good feature and reference for anyone who wants to invest in one soon, but doesn't have anything stronger than a GTX770? Gees, finding that kind of information is proving difficult.
    Reply
  • cypeq
    Cool Yet I can't stop to think that I can Put 5 000$ on something better than gaming rig that can run smoothly this 3 500 $ screen.
    Reply
  • CaedenV
    11564184 said:
    Is it really necessary to use Anti Alaising at this resolution? If anything it would only hurt average FPS without really giving much of a visual increase.

    This is something I am curious about as well. Anandtech did a neat review a few months ago and in it they compared the different AA settings and found that while there was a noticeable improvement at 2x, things quickly became unnecessary after that... but that is on a 31" screen. I don't know about others, but I am hoping to (eventually) replace my monitor with a 4K TV in the 42-50" range, and I wonder with the larger pixels if a higher AA would be needed or not for a screen that size compared to the smaller screens (though I sit quite a bit further from my screen than most people do, so maybe it would be a wash?).

    With all of the crap math out on the internet, it would be very nice for someone at Tom's to do a real 4K review to shed some real testable facts on the matter. What can the human eye technically see? What are UI scaling options are needed? etc. 4K is a very important as it holds real promise to being a sort of end to resolution improvements for entertainment in the home. there is a chance for 6K to make an appearance down the road, but once you get up to 8K you start having physical dimension issues of getting the screen through the doors of a normal house on a TV, and on a computer monitor you are talking about a true IMAX experience which could be had much cheaper with a future headset. Anywho, maybe once a few 4K TVs and monitors get out on the market we can have a sort of round-up or buyer's guide to set things straight?
    Reply
  • daglesj
    So those of us married, living with a partner or not still living with our parents need not apply then?

    I think there is a gap in the market for a enthusiast PC website that caters to those who live in the real world with real life budgets.
    Reply