Dell UP2715K 27-inch 5K Monitor Review

Color Gamut And Performance

For details on our color gamut testing and volume calculations, please click here.

We encountered some interesting results in our gamut tests. If you refer back to our review of the HP Z27q, you'll see similar behavior.

The Color Temp mode is based on the UP2715K's native gamut, which is Adobe RGB with some bonus red. It makes for a deeply-saturated though not technically-accurate image. It looks great but it's not appropriate for color-critical applications. There's also a tracking issue with green where lower saturations are off in hue. The average error here is 4.94dE.

The Adobe RGB preset is pretty much the same as above except red is now reigned in. The lower levels are still over-saturated, however. Green and cyan both clip detail at the bright end of the scale because their 80 and 100-percent saturations are almost the same value.

The fixed sRGB preset is the best un-calibrated mode with most of the color points on-target and a balanced luminance chart. This is the most natural-looking image and will match the most commonly-seen source material.

If you want to calibrate the Custom mode, you'll be starting with the native gamut. This means there's work to do with the six-point hue and saturation controls. Fortunately, a lot can be solved with just the grayscale calibration.

After tweaking the RGB gains and making changes to the other CMS sliders, we've improved the error level from 4.89 to 3.81dE. It's not a huge difference but it is a visible one thanks to a more balanced luminance graph. This is the next best thing to performing an auto-calibration.

Using the included software and an i1Pro produces a near-perfect Adobe RGB gamut with amazingly-accurate luminance levels. We used the 118-patch setting, which takes about 30 minutes to complete. If you want to go for that last one percent, you can measure more patches, which takes more time.

The sRGB result is even better than the Adobe one. This is what perfection looks like. The only thing to remember about either Cal 1 or Cal 2 is to specify the luminance level before you start. The Brightness control is locked out in both modes. It can only be set by the software.

Now we return to the comparison group.

Exceptional color performance is possible from the Dell software but the best pro screens can still achieve similar results with an OSD calibration. In fact both NEC monitors can be adjusted with software but their menus allow for precise accuracy anyway. It comes down to the manufacturer's intent with regards to engineering and how much resolution they build into the menu's controls. Dell takes an approach that is easy for the user and includes the necessary software tools in the box. All you need to provide is a meter.

Gamut Volume: Adobe RGB 1998 And sRGB

The precise gamut results extend to the volume measurement as well. The UP2715K achieves almost exactly 100 percent for both sRGB and Adobe RGB. In the Cal 1 and 2 modes the monitor completely qualifies as a professional-grade piece of gear.

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19 comments
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  • Logen_
    On the specifications chart, it says that the panel is AMVA, but a little below the chart, it's mentioned that it's an IPS panel instead. Going by the conclusion and contrast ratio, definitely IPS. Also, 3 year warranty, that's.... so little for something that clearly deserves a 5 year or more, in my opinion.
  • ceberle
    Quote:
    On the specifications chart, it says that the panel is AMVA, but a little below the chart, it's mentioned that it's an IPS panel instead. Going by the conclusion and contrast ratio, definitely IPS. Also, 3 year warranty, that's.... so little for something that clearly deserves a 5 year or more, in my opinion.


    It is indeed AH-IPS not AMVA. Thanks for pointing out our error.

    -Christian-
  • huilun02
    Oh look its a retina display with retina pricetag
  • Jeff_53
    Why isn't the MSRP on the first or last page? My interest in the product and features is directly tied to it's price.
  • apertotes
    That contrast... ugh! For 99% of users, contrast is much more important than color fidelity.
  • theusual
    How about a test of the DELL S2716DG? Especiall vs the ASUS ROG PG279Q.
  • theusual
    Quote:
    How about a test of the DELL S2716DG? Especiall vs the ASUS ROG PG279Q.

    Never mind. That would be TN vs IPS. You could compare it to the PG278Q though.
  • CBender
    + for the price thing. It is absolutely irritating. Hope you guys fix this.
  • PellehDin
    If they fix the price issue - and the current price is about $1,500 and up - you might just skip the article, which they don't want.
  • CBender
    I don't read the review articles just because of that. I am going to read a full review for a product not that I can't afford, but a product that I consider it be way overpriced (not for this particular review)
  • TallestJon96
    I know I'm a gamer who's out of place in a professional work monitor article, but between the low response time, and you statement that you could play at 40fps, id love to see an article about gaming at 5k, particularly with titan x vs 980 ti benches
  • cats_Paw
    Well, I guess we needed higher resolution to keep "can it run crysis" alive.
  • It is cool to see they are pushing 5k and what not but it is absulutely useless for PC on 27". The only perfect resolution right now is 2K 144Hz, everything over that is waste.
  • Uri___Pisarev
    Quote:
    If they fix the price issue - and the current price is about $1,500 and up - you might just skip the article, which they don't want.



    I have a Dell U3415W, a 34 inch Ultrawide. Price on it was also $1.5K and it did not move, but during the holiday season it fell to $700.

    So if you are interested in a product don't just give up because you can't afford it, it can easily fall into your price range as long as you have reasonable expectations.
  • Uri___Pisarev
    Quote:
    It is cool to see they are pushing 5k and what not but it is absulutely useless for PC on 27". The only perfect resolution right now is 2K 144Hz, everything over that is waste.


    I had a 24 inch monitor and switched to a 32 inch TV and later to a 34 inch monitor.

    I have to say, you can never go back in size ever again. I would not even look at 27 inch.
  • mrmez
    Quote:
    It is cool to see they are pushing 5k and what not but it is absulutely useless for PC on 27". The only perfect resolution right now is 2K 144Hz, everything over that is waste.


    Maybe if you've got poor eyesight, just want to game or have a sub 25" panel.
    I switched from 1440 to 5k ~18 months ago (both 27"), and the difference is amazing.
    Remember this is a pro grade screen for pro users. What matters to them is colour range and accuracy. Refresh rate means almost nothing.
  • lip008
    At $1500 I would just buy a refurbished iMac. I know this monitor will outlast the hardware within the iMac. Others may want to run a machine that is more capable than an iMac, but it's interesting to me how an AIO can sometimes be the same price or cheaper than just the monitor. The 5k iMac maxes out at 4k running Windows the last time I checked though.
  • zodiacfml
    Something's amiss. How is it possible to achieve 100 percent Adobe RGB while just using W-LED backlighting?
  • zodiacfml
    Never mind. The capability seems pretty standard on 5K displays.

    Quote:
    Something's amiss. How is it possible to achieve 100 percent Adobe RGB while just using W-LED backlighting?