the color temperature did not change by much too, but like the gamma, it was already good out of the box. Backlight bleed is visible near all 4 corners, with the lower left corner being the worse and it is a noticeable in a dark room. Since the monitor is so large and has a TN panel, the viewing angles are horrible I had to strain my eyes to use the monitor.

The calibration was done on the 'Custom Color' picture mode, which was already good out of the box, but the calibration helped to fix the minor issues.

If the manufacturer does not provide such information, the diagonal is calculated from the width and height of the screen. Both of them use a black-and-gray, bezel-free cabinet, and both have a curved In-Plane Switching (IPS) panel with a WQHD (3,440-by-1,440) resolution. Unlike the gaming monitors, the S series panels won't come with ultra-fast refresh rates, so they may not appeal to gamers.

Creatives will appreciate the wide color support of these panels -- all three panels support 99% of the sRGB color space alongside AMD FreeSync technology. Its color accuracy is a little high comparatively, but still close enough for almost all users — only photographers and digital artists are likely to notice the difference. The static contrast shows the ratio between the brightest and the darkest color, which the display can reproduce simultaneously, for example, within one and the same frame/scene. Sometimes, this can lead to screen tearing, but thankfully this didn’t appear to be a major issue with through many hours of playing PlayerUnknown’s Battlegrounds, Destiny 2, Overwatch, and Battlefield 1.

The Dell U3417W has an IPS panel, giving you better viewing angles, whereas the CF791 has a slightly better refresh rate and a slightly faster response time resulting in clearer motion. ports on the monitor’s side, too, making the U3417W one of the most USB friendly monitors I’ve ever reviewed; a nice thing for anyone using a bunch of peripherals.

On the chromaticity chart below, the colored dots represent our color measurements results as measured with a colorimeter, and the boxes represent the ideal color coordinates as defined by the International Commission on Illumination (CIE). The Gamma, which was already not bad, did get marginally better and looking at the curve, we see that tracks a bit more closely, but overall it was already good before calibration. The monitor's EDID even has a (1720x1440) entry so an input can fully cover half the screen in PBP mode.Take your work projects and your home entertainment to the highest level with an amazing display, stunning details, and high-quality performance. Its colors remain decently accurate and it doesn't lose most of its brightness until it is viewed at a fairly steep 50-degree angle.

Its wide viewing angle and large virtual workspace make it very useful for productive tasks since you can have many windows open at usable sizes around the screen. The U3417W’s color reproduction falls right in line with other ultrawides when it comes to covering the sRGB and AdobeRGB spectrum. The PG348Q has much better motion handling, with a faster response time and higher refresh rate, as well as NVIDIA G-SYNC VRR support. The most widely used panels are those with 6, 8, and 10 bits for each of the RGB components of the pixel. The only thing missing is Thunderbolt 3, an option that’s been slowly rolling out to higher-end panels.

This is provided for reference only and should not be used, as the calibration values vary per individual unit even for the same model due to manufacturing tolerances. Pay in 3 is a form of credit, may not be suitable for everyone and use may affect your credit score. As usual, I used the Lagom LCD test pages to take a deeper look at how the Dell U3417W performed under a number of tests including contrast, black levels, color, and response time.