images simulated to enhance feature understanding. It may differ from actual use. 8The images simulated to enhance feature understanding. It may differ from actual use. As for input lag, the Time Sleuth reported just 2.1ms of on display latency, and I’m happy to report that my new input lag testing mode for the response time tool reports a decent 7.5ms for the on display latency. The discrepancy there is down to the refresh rate taking so long. The key thing to see here though is that none of the results took more than a single frame to start rendering which is great news. images simulated to enhance feature understanding. It may differ from actual use. 10Comparison of Mode 'OFF' (left image) and AMD FreeSync™. 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 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. Another upgrade we liked on the LG 27UP850-W is its speakers which now have 5 watts of power. They can get decently loud compared to other built-ins and they are capable of better clarity along with some semblance of bass. Headsets and desktop speakers will always sound better, but it is nice to have improved monitor speakers on the side. Display and Performance Desktop monitors and smart TVs experience a latency/lag in visualizing the information. The time in milliseconds that the display needs to visualize the signal input.

Image Quality

Information about the maximum horizontal viewing angle, within which the image on the screen is of acceptable quality. 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. 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. The pixel pitch shows the distance from the centers of two neighboring pixels. In displays, which have a native resolution (the TFT ones, for example), the pixel pitch depends on the resolution and the size of the screen.

The LG 27UP850-W is a fantastic 4K monitor for those who want a flexible and high-quality screen. Its IPS panel is capable of eye-popping color quality so it can be used for entertainment or professional purposes. We also liked the upgrades it received, starting with its powerful 96-watt USB-C port which can charge high-spec laptops without breaking a sweat. Updated to Test Bench 1.2, resulting in changes to the results and scores with the Response Time and Input Lag. Added tests for Console Compatibility and macOS compatibility and made minor changes to other tests, which you can see in our Changelog. Information about the maximum vertical viewing angle, within which the image on the screen is of acceptable quality. Information about the brightness of the screen. It is measured in candela per square metre (cd/m²). The percentage of the approximate area, taken by the active part of the screen, to the total front area.

Added that the Dell Alienware AW2724DM supports HDMI Forum VRR, which this monitor doesn't support. Approximate diagonal size of the display. If the manufacturer does not provide such information, the diagonal is calculated from the width and height of the screen. The LG 27UP850-W has an acceptable pixel response time, but the 60Hz limitation is noticeable in some instances. Using the overdrive is essential, but we can only recommend its Fast level since the maximum will induce overshoot. Doing so will clean up the visible trailing and persistence, but it is still not comparable to a dedicated gaming variant. The LG 27UP850-W renders 100% sRGB and around 96% DCI-P3 for excellent vibrancy in SDR and HDR. Its default accuracy is great since the average is only at 1.89 so users won’t see color errors in any scenario. Calibrating the device isn’t necessary since it looks like LG had that covered from the factory.