QNIX QX2710 LED DPmulti True10 Review
by Chris Heinonen on April 11, 2014 6:00 AM ESTsRGB Test Bench
All calibration measurements are done using SpectraCal’s CalMAN 5.3 software with a custom workflow. Measurements are done using a C6 colorimeter that is first profiled against an i1Pro spectrometer to ensure accurate results. There are two sets of targets we use. Pre-Calibration and our first calibration aim for 200 cd/m^2 with an sRGB gamut and a gamma of 2.2. This is a common real-world setting for a display. The final target changes the white level to 80 cd/m^2 and the gamma curve to the tougher AdobeRGB standard.
|
Pre-Calibration |
Post-Calibration, 200 cd/m^2 |
Post-Calibration, 80 cd/m^2 |
|
| White Level (cd/m^2) | 204.1 | 201.0 | 84.3 |
| Black Level (cd/m^2) | 0.275 | 0.281 | 0.131 |
| Contrast Ratio | 742:1 | 716:1 | 644:1 |
| Gamma (Average) | 1.90 | 2.17 | 2.45 |
| Color Temperature | 6702K | 6629K | 6506K |
| Grayscale dE2000 | 2.74 | 0.44 | 0.81 |
| Color Checker dE2000 | 3.37 | 1.53 | 1.65 |
| Saturations dE2000 | 2.41 | 1.42 | 1.50 |
For this review I’ve switched from taking 21 measurement points to taking 256 levels for grayscale. It provides a much better level of detail than before. Color measurements can’t be measured at the same level of detail, but I do measure them as much as possible.
Using the "Warmish" color temperature setting, we see a good RGB balance before calibration. What isn’t as good is the gamma point, which starts out at 1.6, rises up to 2.0 and then falls down quickly at the top end. This causes crushing of highlights, where values from 90%-100% will look almost identical, and causes shadows to be washed out as well. Colors also have errors with colors on the Green-Yellow-Red side of the CIEuv chart being over-saturated. This also causes the skin tones to be exaggerated.
Post-calibration at 200 cd/m2 the RGB balance is improved but more importantly the gamma is far improved. The gamma is so far off the 2.2 target above 90% that we can’t fully correct it here, but calibration does a good job of fixing it overall. The dE2000 errors fall and are all below 2.0 now with an average of 0.44 that is very good. Color errors improve but there is still a lot of over-saturation in oranges, yellows, greens, and reds that cause visible issues. The lower half of the color gamut is much more accurate.
When we target 80 cd/m2 we see more issues with the gamma, as the lower light output provides us less range to fix the gamma through the hardware LUTs. The grayscale dE2000 is higher as a result but still below 2.0 everywhere. Colors have the same issues, as the green line is hidden behind the yellow line on the saturations chart, but it is otherwise almost the same as it is with 200 cd/m2.
The pre-calibration numbers are okay for the QNIX, but the main thing that holds it back is the gamma preset it utilizes. It makes it hard to hit the gamma target of 2.2 that we look for and means you can see some highlight clipping, even after calibration.
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pierrot - Sunday, April 13, 2014 - link
Aw man, thanks for the reply though!Badelhas - Monday, April 14, 2014 - link
I have a QNIX QX2710 (normal one, with dual DVI only connection) and it dosent skip any frames at 120Mhz, I also did the test myself. I totally recommend it for gaming.I think AnandTech should not be cheap and spend 300 bucks and review that one. The one´s with multiple connections dont OC well.
Badelhas - Monday, April 14, 2014 - link
Please check this forum http://www.overclock.net/t/1384767/official-the-qn...eikast - Monday, April 14, 2014 - link
I am extremely disappointed due to this article.First of all the korean monitors (eBay) are not meant for professional usage. They're meant for gamers who want a reliable 2560x1440 monitor.
Second of all, you don't purchase the multi input version for gaming. They're horrible at overclocking and have more input lag. The version that only comes with one input (dual DVI) is what should be purchased. I paid $300 for my Xstar (same panel) with single dual DVI back in October. I had zero dead pixels, minimal lightbleeding and am able to OC it to 96 Hz without frame skips.
I love Anandtech because usually when i come here to see reviews I see good reviews from people who do their research. I made an account just so that I could post this comment.
If you are thinking about purchasing a korean monitor be sure to check out this link.
http://www.overclock.net/t/1384767/official-the-qn...
Much more useful than this article.
By the way, who the hell OCs a monitor to 110 Hz without trying other frequencies?
You start in increments and then you up the refresh rate.
milkod2001 - Monday, April 14, 2014 - link
im a bit confused with AHVA panel. Is it something new? Is it better then IPS/PLS?I wouldn't mind to pay 50xtra for proper stand with all tilt/shift options something like Dell has and another 50xtra for factory calibrated screen. Pity none of these cheapos have this options. If I'm mistaken plz post a link.
vgu - Tuesday, April 15, 2014 - link
I think the reason that this screen isn't capable of overclocking is because it has lots of processing in order to use DP and the menu system.I own the Qnix QX2710 with Dual Link DVI input only, and it overclocks to 120hz without a hitch. Used the same test as author to verify results.
However, I agree about the colors looking washed out compared to my Dell Ultrasharp.
yasamoka - Tuesday, April 15, 2014 - link
Use a color profile. At 120Hz there is quite the gamma shift.lang15 - Tuesday, April 15, 2014 - link
You picked one of the versions that does not overclock. The single input models (DVI-D only) CAN overclock easily. Is there anyway you can update the article concerning overclocking using one of these models? Any of these models that have more than one input will not overclock.okashira - Tuesday, April 15, 2014 - link
Not to mention has inferior contrast, colors and input lag.The "regular" QX2710 and DP2710LED are some of the best monitors on the market, period. They offer a combo of features that NO other monitors offer at ANY price point:
amazing colors
Good contrast for IPS type display
zero input lag
overclockable
great view angle
non-pwm dimming
Scannall - Wednesday, April 16, 2014 - link
I purchased a Qnix monitor a couple of years ago now. It was $285 delivered. And it has been great. I guess I won the panel lottery or something as there are no dead pixels, minimal backlight bleed and the color is uniform across the screen. It just has the Dual DVI input, which I don't mind but others may find bothersome.There is some element of risk buying these I suppose. With Apple or Dell, you know you will get prompt service or replacement if you're unhappy. But saving $700 made it a gamble I was willing to make.