DCI P3 is a color space, introduced in 2007 by the SMPTE. It is used in digital cinema and has a much wider gamut than the sRGB. Size class of the display as declared by the manufacturer. Often this is the rounded value of the actual size of the diagonal in inches. There's also the usual adaptive sync functionality, listed as Nvidia G-Sync Compatible - meaning it will work with Nvidia cards without setting adjustments - and supporting AMD FreeSync with low frame rate compensation. There is DisplayHDR 400 certification, too, but no local dimming support, so realistically this monitor is not HDR capable. You can really think of this monitor as an ultrawide version of LG's excellent 27GL850. Response times are very similar, you get outstanding viewing angles, top notch wide gamut colors and factory calibration isn't too shabby either. Even IPS glow is improved, especially compared to the 34GK950F. If you're after an ultrawide that delivers an elite combination of speed and visual quality, with the possibility to double as a creative or productivity monitor, there is no better choice than the 34GN850. The best mode for most users, and also the default option, is the Fast overdrive mode. Here we see excellent performance, with a 3.91ms grey to grey average at 160Hz, which is fast enough that all transitions tested were within the 6.25ms refresh window - this means no smearing, and a true 160Hz experience. We also saw minimal overshoot at this refresh rate, so the experience is fast and super clean.

Information about whether the stand can be dismounted. Usually, this is required for wall mounting. Input lag is acceptable, at a touch over 1ms, which leads to a responsive experience. As the panel also refreshes at 160Hz, it's marginally faster and less blurry than current 144Hz options, although the difference is pretty small. We're only talking 11% faster, which is nice to have, but reasonably negligible in the grand scheme of things. There are various panel technologies. Each has its own specific features - viewing angles, color reproduction, response time, brightness/contrast, production cost, etc. The image quality depends directly on the type of the display panel used. On the subject of great looking things, the 34GN850’s LG NanoIPS panel certainly falls into that category. It positively zings with colour and vibrancy. Contrast is great too, which isn’t always the case with IPS screens, especially those rated at a mere 1,000:1 for static contrast. Approximate width of the display. If the manufacturer does not provide such information, the width is calculated from the diagonal and the aspect ratio.Often even a higher peak luminance can be achieved under certain conditions. For example, when a smaller area/APL of the display is used for showing a bright object, when a bright object is displayed for a short time, etc. The maximum number of colors, which the display is able to reproduce, depends on the type of the panel in use and color enhancing technologies like FRC. The operating humidity shows the acceptable level of humidity, in which the display will function flawlessly. It sets a lower and an upper humidity level for safe operation and is measured in percentage. Provided, of course, you have the GPU to drive it. The 3,440 by 1,440 spec isn’t a huge native resolution by today’s standards. But driving it at 160Hz in the latest and greatest titles is no mean feat. But if you've got the hardware, you’re in for a treat. Old school adventures, such as The Witcher 3, look absolutely luscious on this panel. It’s also big enough and detailed enough for a great experience in more strategy orientated stuff like the Total War series. Likewise, aforementioned semi-pro esports types aside, this is a damn fine screen for CS:Go or battle royale larks. The good news: calibrated contrast ratio with our unit was only marginally lower than the 34GK950F, which used older IPS technology. At a 920:1 ratio, it was also higher than our 27GL850 unit, actually 20% higher which is substantial.

As for the questions of speed and response, the answer is qualified. The 160Hz refresh will be bags for all but the most hair-trigger honed of esports aficionados. Paired with either G-Sync or FreeSync and a powerful graphics card, this monitor is nothing if not buttery smooth. Information about the number of pixels on the horizontal and vertical side of the screen. A higher resolution allows the display of a more detailed and of higher quality image. The percentage of the approximate area, taken by the active part of the screen, to the total front area.

34 inches of luscious 160Hz NanoIPS tech. For an awful lot of money...

Comparing the 34GN850 to other monitors paints a very positive picture for the new LG ultrawide. As expected, we are seeing 27GL850-like performance from this monitor, almost matching its response time and inverse ghosting performance. If you're looking for something less expensive, you do have alternatives, and the LG 34GN850 remains a premium option.