LG UltraGear 27GP850-B: Nano IPS 1440p 165Hz Specs and Verdict

The LG UltraGear 27GP850-B suits a gamer who wants a flat 27-inch 1440p Nano IPS monitor with fast motion, strong colour and a 165Hz refresh rate that can overclock to 180Hz, and who accepts modest contrast and token HDR. LG’s own page now lists it as discontinued, so it is best seen as a well-regarded previous-generation model whose remaining stock and used units vary.

27GP850-B at a glance

Is it discontinued?

Yes, according to LG’s US product page, which states that the monitor has been discontinued and points to current UltraGear options. LG did not name a direct replacement on that page. People shopping for the same panel type commonly compare it with LG’s newer 27GS85Q, but sources disagree on some of that model’s details, so read LG’s current page for its stated refresh rate, panel type and USB ports before treating it as a like-for-like successor. RTINGS also notes that the 27GP850-B is a variant of the 27GP83B-B, with the 27GP850-B adding overclocking and USB ports.

LG 27G610A-B 27-inch Ultragear QHD (2560 x 1440) IPS Gaming Monitor, 200Hz, 1ms, AMD FreeSync Premium, VESA DisplayHDR 400, HDMI, DisplayPort, Tilt/Height/Swivel/Pivot Stand, Black

Chosen because it specifies 200Hz and 1ms.

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LG 27GR83Q-B 27-inch Ultragear QHD (2560x1440) IPS Gaming Monitor, 240Hz, 1ms, DisplayHDR 400, G-Sync AMD FreeSync Premium, HDMI 2.1 DisplayPort, 4-Pole HP Out DTS GP:X, Tilt/Height/Pivot Stand, Black

Chosen because it specifies 240Hz and 1ms.

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LG 32GS60QC-B Ultragear 32-inch Curved Gaming Monitor QHD (2560x1440) 180Hz 1ms 1000R AMD FreeSync HDR10 HDMIx2 DisplayPort Borderless Design Black Stabilizer DAS Crosshair FPS Counter - Black

Chosen because it specifies Black.

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LG 27G414B-B 27-inch Ultragear IPS 1080p 144Hz 1ms G-Sync Gaming Monitor | Full HD (1920 x 1080), FreeSync, HDR10, Built-in Speaker, LG Switch, Reader Mode, HDMI, DisplayPort, Tilt/Height Stand

Chosen because it specifies Full HD (1920 x 1080) and FreeSync.

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What reviewers report

Motion and input lag

Display Ninja measured input lag of about 4ms and says pixel response is fast enough to avoid visible trailing up to 180Hz. TechSpot called it the best in its class among the monitors it compared, citing great response times and a usable sRGB mode. Custom PC described its gaming performance as excellent. RTINGS reports low input lag and a 180Hz maximum refresh rate with FreeSync and G-Sync compatibility.

Colour and contrast

The Nano IPS panel earns praise for colour; RTINGS rates colour accuracy as excellent. The weak point is contrast. Custom PC measured 871:1, below the 1000:1 to 1100:1 typical of IPS panels, and Top Trusted Products summarises the experience as sharp motion and accurate colour with greyish blacks. If you play in a dark room, a VA or OLED screen will show deeper blacks.

HDR

DisplayHDR 400 is the entry-level HDR tier, and there is no local dimming. RTINGS rates the HDR performance as terrible, and Top Trusted Products calls it token HDR. Leave HDR off unless a particular game looks better with it.

Fit, stand and compatibility

The stand tilts, adjusts in height and pivots into portrait. Custom PC lists the lack of left and right swivel, speakers and a basic design among its cons. The single DisplayPort 1.4 input is the one to use on a PC for 165Hz or 180Hz, while the two HDMI 2.0 ports suit consoles or a second source. The USB 3.0 hub is handy for a keyboard, a mouse or a headset dongle. The overclock to 180Hz is a monitor-menu setting that LG lists, and, as with any overclock, results can vary by unit and cable.

A 27-inch 1440p screen has a pixel density of roughly 108 pixels per inch, which is a sharper picture than a 32-inch 1440p monitor and a sensible match for mid-range and high-end graphics cards that can drive 165 frames per second in many games.

Strengths and limits

Pick the 27GP850-B if…

Budget tiers and alternatives

At the mid-range tier, the 27GP850-B competes with 1440p IPS gaming monitors at 165Hz to 180Hz. Budget 1440p monitors cost less but usually offer narrower colour gamuts and slower pixel response, while premium OLED 1440p screens offer perfect blacks and much faster response at a higher tier.

• LG UltraGear 27GS85Q: LG’s newer 27-inch 1440p model that buyers compare with the 27GP850-B; read LG’s page for current specs.
• Samsung Odyssey G7 27-inch (C27G75T): a curved 240Hz VA monitor with higher contrast but more reports of flicker with adaptive sync.
• Samsung Odyssey G5 32-inch: a larger, lower-cost curved VA monitor for those who prioritise size over sharpness.

Setup notes

Use the DisplayPort cable for a PC, turn on G-Sync Compatible in the graphics driver, and enable the overclock option only if you want the extra 15Hz. If you see flicker, artefacts or signal drops after enabling it, return to 165Hz. Keep the monitor’s firmware and your graphics driver up to date, and consult LG’s manual for the on-screen menu. If you buy used, inspect the stand and ask for the original cables and manual.

How it fits different games and uses

Competitive and fast-paced games

The combination of a stated 1ms grey-to-grey response, about 4ms measured input lag in Display Ninja’s review and a refresh rate of up to 180Hz makes the 27GP850-B a sensible match for shooters, racing games and fighting games. A 27-inch screen lets you see the whole image without turning your head, which matters when information sits in the corners of the display. The flat panel also keeps crosshair alignment and straight lines predictable.

Single-player and cinematic games

Here the weaker contrast shows. Custom PC’s measured 871:1 means dark scenes look greyish compared with a VA or OLED screen, particularly in a dimly lit room. In a normal lit room the Nano IPS colour and wide viewing angles tend to look better than the numbers suggest, and the 98% DCI-P3 coverage the maker lists gives vivid, accurate colours in games that support wide gamuts.

Mixed work and play

Because it is a flat IPS-type panel with sharp text at 27 inches, the monitor also works for office tasks, photo browsing and video. The USB 3.0 hub reduces cable clutter, though the missing left and right swivel and the lack of USB-C mean it is not a dock-style display. Colour-critical work should still rely on a calibrated screen, since RTINGS’ praise for colour accuracy concerns the gaming picture modes, and TechSpot highlights the usable sRGB mode as a particular strength.

Graphics card pairing

A 1440p screen at 165Hz to 180Hz is a good partner for mid-range and high-end graphics cards from recent generations. Lighter esports titles can approach the upper end of the refresh range on mid-range hardware, while demanding single-player games usually land lower, where variable refresh rate keeps the image smooth. The monitor works with GeForce and Radeon cards through G-Sync Compatible and FreeSync Premium, and over DisplayPort 1.4 it reaches the full refresh rate without compression concerns. If you use a console, the HDMI 2.0 ports are adequate for 1440p output where the console supports it, but these ports are not the route to the highest refresh rates.

Buying a discontinued monitor sensibly

Because LG has retired the model, a purchase now usually means leftover new stock, an open-box unit or a used one. Confirm the exact model code ends in 27GP850-B, since the related 27GP83B-B lacks the overclock and the USB ports according to RTINGS. Ask what warranty and return period apply, because a maker warranty tied to the original purchase date may already have run down. Inspect the screen for dead pixels and uneven backlight on arrival, and test every input before the return window closes. If those terms are unclear, a current UltraGear model with a fresh warranty is the lower-risk route.

Frequently Asked Questions

Is the LG 27GP850-B still available?

LG’s US page lists it as discontinued. Stock may remain in some regions, and used units exist, but LG points to its current UltraGear range.

Is the 27GP850-B IPS or VA?

LG lists it as a Nano IPS panel. That means strong colour and wide viewing angles, with the lower contrast typical of IPS.

Can the 27GP850-B run at 180Hz?

LG lists a 165Hz refresh rate that overclocks to 180Hz. Display Ninja reports that pixel response keeps up with 180Hz.

Does it support G-Sync?

LG lists it as G-Sync Compatible with AMD FreeSync Premium, so both GeForce and Radeon cards can use variable refresh rate.

Is the HDR any good?

It carries a DisplayHDR 400 label, but RTINGS rates its HDR performance as terrible and Top Trusted Products calls it token. Most players leave it off.

What is the difference between the 27GP850-B and 27GP83B-B?

RTINGS reviews them together and describes the 27GP850-B as a variant that adds overclocking and USB ports.