UltraGear OLED 45GX950A

Released April 2025

LG's 45-inch 5120 × 2160 (5K2K) curved OLED gaming monitor at 165 Hz, with a dual mode that runs 2560 × 1080 at 330 Hz, for gamers and multitaskers who want a very large, sharp ultrawide.

Size: 44.5″
Resolution: 5120 × 2160
PPI: 125
Panel: OLED
Refresh: 165 Hz
Brightness: 275 nits
HDR: True Black 400
USB-C power: 90 W

What reviewers say

Reviewers agree the huge curved 5K2K OLED is very immersive, especially for racing and flight games, with a sharp, colourful picture and smooth motion. The common complaint is the very high price; PC Gamer found full-screen brightness limited and the curve extreme, Trusted Reviews found the ports meagre, and Tom's Hardware saw gamma errors after calibration.

From tomshardware.com, pcgamer.com and trustedreviews.com

Specifications

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Display

Screen size: 44.5″
Resolution: 5120 × 2160 (5K2K)
Sharpness: 125 pixels per inch
Panel: OLED (LG Display WOLED with RGWB subpixels; dual mode 2560 × 1080 at 330 Hz (TFTCentral, from LG))
Refresh rate: 165 Hz
Response time (grey to grey): 0.03 ms
Brightness (typical): 275 nits
HDR certification: DisplayHDR True Black 400
HDR formats: HDR10
Contrast ratio: 1,500,000:1
Colour range: 98.5% DCI-P3 (typical)
DCI-P3 coverage: 98.5%
Shape: Curved (800R)
Adaptive sync: FreeSync Premium Pro, G-Sync Compatible
Subpixel layout: RGWB (TFTCentral)
Colour depth: 10-bit, 1.07 billion colours
Colour modes: Reader Mode, Colour Weakness mode; HDR Effect
HDR detail: HDR10; VESA DisplayHDR True Black 400
Viewing angles: 178° / 178°
Pixel pitch: 0.2035 × 0.2035 mm
Calibration: Factory calibrated; hardware calibration ready (LG Calibration Studio)

Connections

Video inputs: 2 × HDMI 2.1, DisplayPort 2.1, USB-C
USB-C charging: Up to 90 W
USB ports: 2 × USB-A
Speakers: Yes
HDMI detail: 2 × HDMI 2.1 (1.8 m cable included)
DisplayPort detail: DisplayPort 2.1 with DSC (cable included)
USB-C detail: USB-C with video up to 5120 × 2160 at 165 Hz, data and 90 W power delivery; also the USB upstream port
USB hub detail: 2 × USB 3.0 downstream
Picture by picture: PIP; 2-way PBP
Audio out: 4-pole headphone out (sound and mic), DTS Headphone:X
Speaker detail: 2 × 10 W, Rich Bass

Design

Stand adjusts: Height, tilt, swivel
VESA mount: Yes
Weight with stand: 14 kg
VESA pattern: 100 × 100 mm
Size with stand: 991.6 × 342 × 545.6–665.6 mm (W × D × H)
Size without stand: 991.6 × 225.5 × 460.7 mm (W × D × H)
Weight without stand: 9.4 kg
Controls: 4-way joystick; user-defined key; auto input switch; dual controller; Unity Hexagon Lighting

Power and support

Power use: Less than 0.5 W sleep, less than 0.3 W off
Power supply: External adapter, 20 V / 18 A output, 100–240 V input
In the box: HDMI 2.1 cable, DisplayPort 2.1 cable, USB-C cable, power adapter and cord, mouse holder

Pros and cons

Pros

5120 × 2160 WOLED (125 ppi) at 165 Hz, or 330 Hz at 2560 × 1080 in dual mode
DisplayPort 2.1 and USB-C with 5K2K 165 Hz video and 90 W charging
2 × 10 W speakers with DTS Headphone:X

Cons

275 nits typical brightness and DisplayHDR True Black 400
Steep 800R curve; 14 kg with its stand
Stand has no pivot; external power adapter

Closest rivals

Model	Size	Resolution	PPI	Panel	Refresh	Brightness	HDR	USB-C power	Released
DellAlienware 39 5K OLED (AW3926QW)	38.9″	5120 × 2160	143	OLED	165 Hz	300 nits	True Black 500	90 W	Jun 2026
SamsungOdyssey OLED G9 G95SC	49″	5120 × 1440	109	QD-OLED	240 Hz	250 nits	True Black 400	–	Jun 2023
LGUltraGear evo GX9 (39GX950B)	38.9″	5120 × 2160	143	OLED	165 Hz	335 nits	True Black 500	90 W	Jun 2026

Sources

Photo: lg.com

LG 45GX950A, Front view of 45" LG UltraGear™ OLED Gaming Monitor, 800R Curve, 5K2K Resolution, 165Hz Refresh Rate, Black 45GX950A-B: LG, official UK product gallery
LG 45GX950A, close-up view of ports: LG, official UK product gallery
LG 45GX950A, Tilt and curve: LG, official UK product gallery

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