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The AW3426DW came to me set to Standard picture mode, which, as you’ll see, does not need calibration. There is an 11-page report stored in each sample’s firmware that you can read from the OSD. My tests confirmed that it is indeed calibrated at the factory.
Grayscale and Gamma Tracking
Our grayscale and gamma tests use Calman calibration software from Portrait Displays. We describe our grayscale and gamma tests in detail here.
If I were just going to put the AW3426DW on my desk and use it for gaming and productivity, I would not bother with adjustments. The first chart shows that it has no grayscale errors above 2dE, and the gamma is slightly dark but very close to the 2.2 reference. This is impressive out-of-box performance.
In the Custom Color mode, you get RGB gain and bias sliders. I didn’t have to touch the bias, but I lowered red and green gain by one click each. The result was all errors below 0.5dE and a slightly tighter gamma. The visual difference is extremely small, but if you have the desire and the means, why not? This is a superlative performance.
The Creator sRGB mode has very accurate grayscale, but gamma is a tad wonky. It’s too light at 10%, making the shadow areas less black. And there’s a rise between 60 and 80%, which takes a bit of definition out of the brighter mid-tones. This is a minor error, but it would be nice to have tighter gamma. You can change the preset, but you can’t alter the curve’s shape.
Comparisons
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Though the AW3426DW impresses with a 1.46dE default grayscale score, it is slightly bested by its predecessor and by the Gigabyte. These numbers are more like talking points as the visual difference can’t be seen with the naked eye. But I am here to be precise in my testing.
Calibration takes the AW3426DW down to 0.44dE, but again, it is pipped by the AW3425DW by 0.01dE. Yes, that is a hair at best. All the monitors here test extremely well.
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Gamma performance is excellent but middling by comparison. The range of values is very tight at 0.08 from lowest to highest. The deviation is 2.73% with an actual average of 2.26. This is excellent performance.
Color Gamut Accuracy
Our color gamut and volume testing use Portrait Displays’ Calman software. For details on our color gamut testing and volume calculations, click here.
The color test result clearly shows the advantage of Quantum Dot technology. The AW3426DW fully covers all primaries, including green with slight oversaturation at all points. This means the picture will be very colorful but also well-balanced. Calibration barely makes a difference, but you can see slightly better hue tracking in cyan, magenta, and yellow.
The sRGB chart is very good overall, but with some slight undersaturation in the midrange red tones. This is an extremely small error. The AW3426DW is qualified for color-critical applications.
Comparisons
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The color difference between all six monitors is extremely small. From an error standpoint, there is no visible difference. The only variation comes in the volume test, where the AW3426DW sits at the bottom of the Quantum Dot screens. It has about 1.5% less color volume than the AW3425DW, which is an invisible difference. The AOC and Gigabyte screens have a touch more green and red, but you’ll only see that in the brightest content. For everyday games, videos, and applications, all six monitors will look the same.
Test Takeaway: The AW3426DW has exemplary out-of-box color, grayscale, and gamma accuracy. It does not need calibration, but a couple of tweaks generated awesome numbers in my tests. Its color volume is on par with other Quantum Dot screens at a hair shy of 105% of DCI-P3. No one would complain about its colorful and clear image.
MORE: Best Gaming Monitors
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Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors. Christian began his obsession with tech when he built his first PC in 1991, a 286 running DOS 3.0 at a blazing 12MHz. In 2006, he undertook training from the Imaging Science Foundation in video calibration and testing and thus started a passion for precise imaging that persists to this day. He is also a professional musician with a degree from the New England Conservatory as a classical bassoonist which he used to good effect as a performer with the West Point Army Band from 1987 to 2013. He enjoys watching movies and listening to high-end audio in his custom-built home theater and can be seen riding trails near his home on a race-ready ICE VTX recumbent trike. Christian enjoys the endless summer in Florida where he lives with his wife and Chihuahua and plays with orchestras around the state.
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Roland Of Gilead That's a beaut! I've only just upgraded my monitor to 21:9 3440x1440p, IPS and I love it. I play mainly BF6 and F1 2026, and the wider screen makes games like that shine.Reply
I will upgrade to something like this in a couple of years. I'm drooling. -
SkyBill40 I have the 3423DWF and I love it. This would be a nice addition as my main while relegating the older one to a secondary display role, but my wife would notice and string me up by my entrails if I brought this home.Reply -
thestryker It seems like Dell has delivered another solid monitor especially when considering the price. I am very interested in what comes next in this space as I really love the 21:9 34" format and development here has generally been a lot slower than 16:9.Reply
While $800 is still a lot of money it amazes me that Dell is undercutting everyone else with this display. The closest priced to it is Asus' similarly spec'd version which is at least $100 more while most other monitors using this panel are >$1000.
The upgrade over the AW3425DW is certainly tangible, but it's not one I'll be making. I'd be a little more tempted if I used a single monitor setup because of the pixel layout. Instead when looking at this I just see the hassle of selling my existing monitor or eating the cost of the new one. -
SkyBill40 Reply
I'm in the same boat. I could probably flip my display to one of my coworkers, but I'm not sure what I could get back for it to lessen the cost of a newer replacement.thestryker said:It seems like Dell has delivered another solid monitor especially when considering the price. I am very interested in what comes next in this space as I really love the 21:9 34" format and development here has generally been a lot slower than 16:9.
While $800 is still a lot of money it amazes me that Dell is undercutting everyone else with this display. The closest priced to it is Asus' similarly spec'd version which is at least $100 more while most other monitors using this panel are >$1000.
The upgrade over the AW3425DW is certainly tangible, but it's not one I'll be making. I'd be a little more tempted if I used a single monitor setup because of the pixel layout. Instead when looking at this I just see the hassle of selling my existing monitor or eating the cost of the new one. -
mr.phil I'm not a gamer, but as a photographer I'm interested. How does this stand up for photography work? Any opinons?Reply -
Roland Of Gilead Reply
Same. I've 2 27in 1440p no curved. Am gonna have both at either end of the 34in vertical orientation :) I'm thinking a nice matrix screensaver would look cool on that setup.SkyBill40 said:This would be a nice addition as my main while relegating the older one to a secondary display role -
Roland Of Gilead Reply
Yeah, I've been wondering why this size/aspect ratio isn't more prevalent. It's almost niche. There are lots of VA panels, but my own is IPS, and is hard as hens teeth to find. Hopefully there will more entries in this space.thestryker said:I am very interested in what comes next in this space as I really love the 21:9 34" format and development here has generally been a lot slower than 16:9. -
thestryker Reply
Definitely! When I got my first one with a VA panel the choice was basically compromised monitor or over $1000. By the time I wanted to replace it to get something with proper HDR OLEDs were the only reasonable choice. There were no IPS displays that weren't really old (aside from an AOC which wasn't curved) and there was only one VA panel and no mainstream brands ever picked it up. Even going OLED only the QD-OLED panel was viable for me due to WOLED being 800R curve.Roland Of Gilead said:Yeah, I've been wondering why this size/aspect ratio isn't more prevent. It's almost niche. There are lots of VA panels, but my own is IPS, and is hard as hens teeth to find. Hopefully there will more entries in this space.
Currengly it seems like the market is entirely cheaper VA/IPS and two tiers of OLED: input/refresh compromised or expensive. -
Roland Of Gilead Reply
Well, this is just my opinion, and just a being a gamer, but I think OLED tech would be great in terms of the near infinite contrast, real dark blacks, colours that pop, and nice brightness that would be close to what would be expected for professional photography.mr.phil said:I'm not a gamer, but as a photographer I'm interested. How does this stand up for photography work? Any opinons?
But, I understand some calibration is required for best results. -
Roland Of Gilead Reply
That's a serious curve. I've only ever seen 1000R min. 800R would be like wearing the monitor wrapped around your face! 😀thestryker said:WOLED being 800R curve.