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We tested the monitor with the PS5's new variable refresh rate feature and confirmed that it's not compatible, since the PS5 only supports HDMI Forum VRR. The new monitor is scheduled to go on sale in the coming weeks in most regions. LG provided us with the display ahead of release, but we've tested a final retail model that's ready to go. 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 storage humidity shows the lower and upper humidity limit, which ensures safe storage of the display. Storing it outside these limits might damage the display.
The next step is a full calibration, which we achieved using DisplayCAL. As expected, sRGB results are very strong, and for P3 it's also quite good aside from some very small problems right at the tip of the gamut where that last 2-4% isn't covered. LG needed this because in the past year or so we've seen other fast IPS panels hit the market, like the AU Optronics panel seen in MSI's MAG274QRF-QD, offering a step above the older 27GL850 in performance. While improving motion clarity and input latency, LG have kept pretty much everything else the same. This means the same great wide gamut experience, same great viewing angles, same sort of factory calibration and unfortunately, the same contrast ratio, which remains a weak spot for LG's offering. We do get higher brightness and a refreshed design though. To be clear, it doesn't need that higher refresh rate to be better, even comparing 144Hz to 144Hz, the 27GP850 is better in terms of response performance, a product of tweaked and improved overdrive modes.
The LG 27GN850 is a decent IPS monitor, but it needs a bit of tweaking to maximize the color advantage of its IPS panel. There is no question about its speed since it has low latency and its pixel response time is top-notch. Its compatibility with both VRR solutions is a huge plus, especially for those who upgrade their GPU to the current best every release cycle. The LG 27GN850 doesn’t have speakers, but that’s okay since its intended audience will most likely use gaming headsets. Built-ins are also part of the handy extras you can get from a high-end monitor, but it is still forgivable if they aren’t included. Display and Performance In terms of design, this is your standard LG UltraGear monitor. The stand has received an overhaul, so we're not getting the sliding-cylinder design for height adjustability, but the new version is similar to LG's 2020-series monitors. The stand pillar and base use plastic for their outer materials, it's got this new more angular pillar that looks quite good, and then V-shaped legs. I also quite like how easy it is to access the 27GP850's ports on the rear, where you'll find a DisplayPort, two HDMI connectors and a couple of USB ports. This complicates wall mounting somewhat - this display does have a VESA mount - but I feel the ease of access is worth it. The overall rear design is nice, and I'm glad LG hasn't changed it substantially from previous monitors. When using the Normal mode, at 180Hz performance does improve noticeably compared to overdrive disabled, and LG has achieved this without increasing overshoot. A 6.5ms grey to grey average response time is in line with several other IPS monitors, but we can do better than this. Let's increase the overdrive up to Fast.
The operating temperature shows the safe temperature range (from minimum to maximum), within which the display will function flawlessly. Outside this range it might operate improperly and/or fail entirely.
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When looking at cumulative deviation, we do see an improvement for the 27GP850, it now sits firmly among those new IPS panels we've just been talking about, although not generationally ahead. In comparison, last-gen versions like 27GL850, S2721DGF and AG273QXP all sit in the 580 to 540 range in this metric. So the 27GP850's result of 521 is in the range of 5 to 10 percent better, not a huge improvement but decent for what appears to just be overdrive tweaks, rather than an entire overhaul of LG's IPS technology - and it's doing this without variable overdrive. It is noticeable that the brand did not spare any expense when it comes to the LG 27GN850’s build quality. Its plastic panels don’t feel cheap so they are sturdy, plus there are no cosmetic defects on any of the monitor’s sides or edges. The stand also doesn’t wobble, but the cable hook feels a bit flimsy which may become a problem if you regularly change cables for different devices.
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