The LG 27GP850-B is a 27-inch Nano IPS panel at 1440p with a 165Hz refresh rate (overclockable to 180Hz). Its wide colour gamut needs attention when setting up for gaming.
Color Gamut — Most Important Setting First
The 27GP850-B covers 98% DCI-P3. In SDR gaming without colour management, this makes games look oversaturated. Fix it:
Option 1: Enable sRGB mode in the LG OSD. This clamps output to the sRGB gamut. Colors will look accurate. Note: you lose manual brightness control in this mode.
Option 2: If you do not want sRGB mode, reduce Color Gamut to sRGB under Color > Color Gamut in the OSD (available on some firmware versions).
Response Time (Overdrive / TraceFree)
- TraceFree 60–70 — the safe range for 165Hz operation
- TraceFree 80+ — inverse ghosting appears on most 27GP850-B panels at this level
- Test at 180Hz if you are using the overclock — you may be able to push one step higher
Brightness
- Default OLED Light / Brightness: drop from 80 to 50–60 for typical indoor use
- The Nano IPS panel is bright — it does not need high settings to look vivid
Sharpness
Set to 50. LG's sharpness filter above 55 on the 27GP850-B adds noticeable edge haloing.
Black Stabilizer
LG's shadow-lifting setting. A value of 60–65 (scale 0–100) helps visibility in darker game environments without washing out dark areas.
Adaptive Sync
Enable FreeSync Premium in the LG OSD. Enable G-Sync Compatible in Nvidia Control Panel for Nvidia GPUs.
Community Presets
LG 27GP850-B owners have submitted presets at BestSettingsFor.com/displays/lg-27gp850-b — including notes on the sRGB mode trade-off and panel variance between unit batches.
