HP Z27q 27-inch 5K Professional Monitor Review

Color Gamut And Performance

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

The Z27q has a native gamut conforming to the Adobe RGB standard, therefore, the Custom RGB mode is based on that colorspace. You can see that the outer points are on-target with the exception of red, which is over-saturated, and magenta, which has a hue error. We can't explain the odd tracking of the green saturation however, and that behavior persists in the Adobe RGB mode shown in the next chart. Even with its excellent grayscale tracking, we would not use this mode for color-critical work.

The Adobe RGB mode shows some of the same problems, but now the red primary has been improved; the problems in green and magenta remain. Furthermore, the luminance levels for red and magenta are quite high resulting in visible errors.

sRGB is by far the most accurate of the Z27q's picture modes. You're looking at near-perfection here. Every saturation measurement is spot-on and no luminance measurement is off by more than three percent. This is the kind of performance we expect from a professional monitor.

Now we return to the comparison group.

Despite the Z27q's billing as an Adobe RGB monitor, its color errors in that mode make it hard to recommend for color-critical work. If you only need the sRGB or Rec.709 gamut, this display is among the best. If the wide-gamut option is a requirement, there are better solutions out there.

Gamut Volume: Adobe RGB 1998 And sRGB

The Z27q comes closest to 100 percent volume for both the Adobe RGB and sRGB color gamuts. We still maintain that it's best-suited for applications in the sRGB/Rec.709 colorspaces, but if you need Adobe RGB, it will render all the colors in that standard.

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  • Xajel
    So, how long till we will see a 21:9 version of these... the 21:9 version will be good, as it will you give you the 21:9 ratio and still be able to view a full 4K resolution in the same time, as 21:9 version will have 2160 vertical resolution with 5K width... final res is 5120x2160
  • fmyhr
    No measurement of power consumption? Did you lose your Kill-A-Watt?
  • Tanquen
    Rent is too damn high!

    27" is too damn small! (So is anything under 34" for 4 and 5k screens.)
  • thor220
    Quote:
    No measurement of power consumption? Did you lose your Kill-A-Watt?


    This is a professional monitor and one of the few 5k screens on the market. Power consumption does not matter.
  • utroz
    You would need a microscope to see the pixels on this bad boy!!
  • 10tacle
    Ping me when this resolution is available in 32"...and there are GPUs powerful enough to run games at that resolution since even SLI 980Tis get taken to their knees in 4K in games like Witcher 3.
  • Bghead8che
    Too bad regarding the Adobe RGB test. Otherwise a pretty decent monitor, especially for the price. You wonder if the Adobe RGB issue is specific to the exact monitor they tested or it affects all HP Z27q models?
  • Larry Litmanen
    Quote:
    Ping me when this resolution is available in 32"...and there are GPUs powerful enough to run games at that resolution since even SLI 980Tis get taken to their knees in 4K in games like Witcher 3.


    I have a 34 inch Dell Monitor, 21:9,, rather than wait until the GPUs will become powerful enough i simply temporarily switched to playing AAA games on the XBox One. So i have the monitor for general PC activity and play Xbox on it as well.

    Realistically it is simply too much to drop all that money on the monitor and a GPU, of the two i think GPU can wait.
  • Karsten75
    You say "... it will send a true 10-bit signal to the display."

    That is one of my perennial questions. How to verify that when looking at a monitor's specifications. Can you provide any guidance in that area? I lnow that 10-bit (or 8-bit) is important for the entire path of image production, but I do not always know how to ensure that.
  • none12345
    The more 200ppi screens the merrier. As far as processing power for games...ya we arent there yet, but we should have gpus later this year that will be fine on that res. I wouldnt touch this screen tho because its only 60hz. Not touching 4k till there are a bunch of 120hz monitors out. All thought id really like an OLED screen next, id really like to see 10bit per channel 120hz OLED become average for monitors.
  • f-14
    @ 60Hz
    no thanks florescent lighting flicker gives most every one a headache after 5 minutes to 3 hours some lucky few who can make it to 3 hours.
    make it 75hz and ease the eye strain and flicker headache problem 85hz i have found i can work with for 12 hours at a time. i still have to take long breaks with a 75hz after 3-5 hours tho.

    60hz is enough only for robots. you ever wonder why you get headaches look at these screens on a video broadcast.... not only is the flicker prominent to the point even a moron can't ignore it, but you can also see the vertical scan lines
  • weilin
    Can Toms do a review of the Dell UP3216q?
  • spagalicious
    Quote:
    @ 60Hz no thanks florescent lighting flicker gives most every one a headache after 5 minutes to 3 hours some lucky few who can make it to 3 hours. make it 75hz and ease the eye strain


    60Hz produces no eye strain and scan lines are definitely not visible. Modern LCDs use LED backlighting. PWM dimming can cause eye discomfort for some, but not all. There is no tech available to run 5K@60Hz+.
  • picture_perfect
    pfft...5120x2880. Not even 8K. You kids get off my lawn!
  • BIG_PWR
    @10tacle, just to comment on your post, I have xfire R9-290's and Witcher 3, plays fine at 4K, 60Hz, never dipping below 35 fps. It's not perfect but still very enjoyable. Just thought I'd throw my 2cents.