G means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. G LG 27GN800-B, 68.6 cm (27"), 2560 x 1440 pixels, Quad HD, LCD, 1 ms, Black LG 27GN800-B. Display diagonal: 68.6 cm (27"), Display resolution: 2560 x 1440 pixels, HD type: Quad HD, Display technology: LCD, Response time: 1 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. VESA mounting. Product colour: Black https://www.monitornerds.com/lg-27gn800-b-review/ on AmazonThe LG 27GN800-B is an inexpensive IPS monitor with a 144Hz 1440p output plus some of the essential features of a gaming-grade display. The UltraGear monitor uses the same panel as its higher-tiered sibling, but it sacrifices a few creature... Vibrant IPS Screen, FreeSync/G-Sync Compatible, Fast Pixel Response Time, Low Input Lag, Affordable, Tilt-Limited Stand, Limited Contrast, Mediocre Default Accuracy The LG 27GN800-B is a good choice for E-Sports due to its excellent gaming performance. It's fast and practically blur-free, plus it can produce vibrant colors which will be great for many competitive titles. It's a well-rounded gaming display even if it'... https://www.rtings.com/monitor/reviews/lg/27gn800-b The LG 27GN800-B is a great gaming monitor from LG's UltraGear lineup. It's very similar to the LG 27GN850-B/27GN880-B with a nearly identical panel but a much cheaper stand, so don't expect much ergonomic adjustability. When it comes to gaming, it delive... Exceptionally fast response time, Low input lag, Native FreeSync and G-SYNC compatible Poor contrast ratio