Monitors · 2023 · LG

LG UltraGear 27GR93U-B

The LG UltraGear 27GR93U is a 27-inch 3840 × 2160 IPS gaming monitor with 144 Hz and 1 ms (GtG) response. It has VESA DisplayHDR 400, 95% DCI-P3 (typical) colour coverage, two HDMI 2.1 inputs and one DisplayPort 1.4 (DSC), G-SYNC Compatible and FreeSync Premium support, and a stand with height, tilt and pivot adjustment. Testing liked the accurate out-of-the-box colour and fast response; HDR is limited because there is no local dimming, and the chassis plastics feel cheap.

27GR93U-B, the 27-inch 4K 144 Hz IPS model; the spec table is from LG UK, dimensions and weights from LG Canada. The 32-inch 32GR93U and the OLED UltraGear models are separate products.

LG UltraGear 27GR93U-B — LG image of the 27GR93U-B; front view on its stand.
LG image of the 27GR93U-B; front view on its stand.

Specifications

SpecificationValue
Panel27-inch (68.5 cm) IPS, 3840 × 2160, 16:9; anti-glare surface

At 27 inches, 4K means high pixel density; text and detail look very sharp, though Windows usually needs scaling. IPS panels offer wide viewing angles and good colour, but blacks are not as deep as OLED.

Refresh rate and response time144 Hz; 1 ms (GtG, Faster mode)

LG notes that 1 ms is only achieved with Game Adjust → Response Time → Faster. 144 Hz requires a graphics card with DisplayPort 1.4 (DSC) or HDMI 2.1.

Contrast and viewing angle1000:1 typical (700:1 minimum); 178° / 178°

1000:1 is ordinary for IPS: blacks can look grey in a dark room. No local dimming is listed.

ColourDCI-P3 95% typical (90% minimum, CIE1976); 10-bit (8-bit + FRC), 1.07 billion colours; hardware calibration ready

8-bit + FRC imitates 10-bit gradations with rapid dithering; usually invisible to the eye. Hardware calibration writes settings to the monitor’s own memory.

HDRHDR10; VESA DisplayHDR 400; HDR Effect

DisplayHDR 400 is the entry tier of HDR certification; without local dimming, the bright-to-dark range of HDR content stays limited. HDR Effect is a picture mode that makes SDR content look more HDR-like.

Adaptive syncNVIDIA G-SYNC Compatible; AMD FreeSync Premium; VRR up to 144 Hz

Matches the monitor’s refresh to the game’s frame rate, reducing tearing and stutter. According to LG, VRR needs a graphics card with DisplayPort 1.4 (DSC) or HDMI 2.1.

Connections2 × HDMI (2.1), 1 × DisplayPort 1.4 (DSC); USB 3.0 upstream 1, downstream 2; 4-pole headphone out (audio + mic), DTS Headphone:X

DSC (Display Stream Compression) compresses the 4K 144 Hz signal, which exceeds DisplayPort 1.4 bandwidth, with no visible loss. There is no USB-C input and no built-in speakers are listed.

Gaming featuresBlack Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter, User Defined Key; Hexagon RGB LED lighting

Black Stabilizer brightens dark areas so opponents in shadow are visible; Crosshair places a fixed aiming point at screen centre. Crosshair is unavailable while FPS Counter is on.

Stand and mountingHeight, tilt, pivot; detachable base; cable holder and mouse cable holder

Per LG Canada dimensions, height with stand ranges from 467.7 to 577.7 mm, so about 110 mm of height adjustment. Pivot turns the screen to portrait; swivel is not listed.

PowerExternal adapter, 19 V / 3.42 A (65 W); 50 W typical, 55 W max; under 0.5 W in sleep
Size and weightWith stand 613.5 × 467.7–577.7 × 253.7 mm, 6.4 kg; without stand 613.5 × 371.6 × 51.3 mm, 4.5 kg

From the manufacturer

LG presents the 27GR93U as an IPS 1 ms gaming monitor that can also deliver UHD 144 Hz over HDMI 2.1 and is NVIDIA-validated as G-SYNC Compatible. LG UK

Strengths and limitations

  • In PC Gamer’s test the monitor was found to be beautifully calibrated out of the box: colours accurate and rich without oversaturation. The fastest of three overdrive levels produced obvious overshoot and inverse ghosting but was very fast; the middle level was recommended as the best compromise, and the reviewer found the response subjectively close to OLED. SDR content still looks good in HDR mode, so Windows can be left in HDR, but HDR content does not deliver a true HDR effect. The anti-glare coating is not glossy but smoother and clearer than ordinary matte. Downsides: the chassis plastics feel cheap and scratchy, the rear RGB lighting is weak, and there is no USB-C.

    PC Gamer review.

    PC Gamer: LG UltraGear 27GR93U review

Tags

2023LGULTRAGEAR4K144HZIPSHDMI-2-1

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Sources

  1. LG UK: 27GR93U-B specifications
  2. LG Canada: 27GR93U-B specifications
  3. PC Gamer: LG UltraGear 27GR93U review