LG UltraGear 39GX950B vs LG UltraGear 27GX704A-B

Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the LG UltraGear 39GX950B is the better pick — it scores 61/100 to the LG UltraGear 27GX704A-B's 52, leading on Panel and Image Quality. Choose the LG UltraGear 27GX704A-B instead if performance matters most to you, where it comes out ahead.

Verdict

Our overall take, at a glance

LG UltraGear 39GX950B leads overall

LG UltraGear 39GX950B

LG UltraGear 27GX704A-B

Why it stands out

Panel Resolution: 5120 × 2160 px
Panel Screen Size: 39 in (47% more)
Panel Pixel Density: 143 (29% more)

Watch-outs

Compromises to know before you buy

LG UltraGear 39GX950B

No notable compromises found.

LG UltraGear 27GX704A-B

No USB-C — no single-cable laptop connection.

Winner by category for LG UltraGear 39GX950B vs LG UltraGear 27GX704A-B
Category	LG UltraGear 39GX950B	LG UltraGear 27GX704A-B	Winner
Panel	67	50	LG UltraGear 39GX950B
Image Quality	52	48	LG UltraGear 39GX950B
Performance	44	56	LG UltraGear 27GX704A-B
HDR	56	44	LG UltraGear 39GX950B
Connectivity	74	35	LG UltraGear 39GX950B
Ergonomics	85	85	Tie

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.

LG UltraGear 39GX950B

The LG UltraGear 39GX950B is a 39-inch curved OLED monitor designed for gamers and power users wanting an expansive, high-resolution canvas. It features a 5120 x 2160 resolution on an ultrawide 21:9 panel, coupled with a tight 1500R curvature for wrap-around immersion. The display delivers an ultra-fast 165Hz refresh rate alongside modern connectivity, including a 90W USB-C power delivery port.

Best for Ultrawide PC gaming demanding high refresh rates, low latency, and adaptive…Best for Single-cable workstation setups that require robust laptop charging alongside…

Pros

Extremely rapid 0.03ms response time that virtually eliminates ghosting and motion blur
High pixel density of 143 PPI offers sharp text and detailed graphics
Versatile USB-C port with 90W power delivery for clutter-free laptop integration
Excellent color performance with 99% DCI-P3 coverage and infinite OLED contrast ratios

Cons

Typical SDR brightness is capped at 335 nits, which may feel dim in highly illuminated spaces

Official

Official specificationsOfficial specifications detailing panel measurements, inputs, power delivery capacity, and refresh rates.

Video — reviews used (3)

Generated Sep 12, 2026

LG UltraGear 27GX704A-B

The LG UltraGear 27GX704A-B is a 27-inch OLED gaming monitor designed for players who prioritize deep contrast and fast visual performance. Utilizing self-lit OLED technology, it targets high-end gaming setups looking for rich image quality without sacrificing motion clarity.

Best for Fast-paced competitive gaming requiring high responsivenessBest for Dark-room media consumption and immersive gameplay

Pros

OLED panel technology delivers per-pixel dimming with infinite contrast and true deep blacks
27-inch form factor provides an ideal screen size for fast-paced competitive gaming

Cons

OLED panels carry a risk of permanent image burn-in when displaying static desktop elements long-term

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

LG UltraGear 39GX950B

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LG UltraGear 27GX704A-B

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Physical Comparison

Weigh them up, then compare real dimensions in 3D

LG UltraGear 39GX950BLG UltraGear 27GX704A-B

LG UltraGear 39GX950B is 2 kg (42%) heavier than LG UltraGear 27GX704A-B.

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Panel

Feature	LG UltraGear 39GX950B	LG UltraGear 27GX704A-B
Screen Size	39 in47% more	26.5 in
Resolution	5120 × 2160 px	2560 × 1440 px
Panel Type
Aspect Ratio	21:9	16:9
Pixel Density	14329% more	111
Curved	Yes	No
Curvature radius	1,500 mm	N/A
Screen-to-body ratio	94%	91%

Image Quality

Feature	LG UltraGear 39GX950B	LG UltraGear 27GX704A-B
Brightness (typical)	335 nits22% more	275 nits
Contrast Ratio	1850000:1	1500000:1
Color Gamut (DCI-P3)	99	98
Color Depth	10-bit	10-bit

Performance

Feature	LG UltraGear 39GX950B	LG UltraGear 27GX704A-B
Refresh Rate	165 Hz	240 Hz45% more
Response Time (GtG)	0.03 ms	0.03 ms
Adaptive Sync	AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible, VESA AdaptiveSync	FreeSync Premium Pro / G-Sync Compatible

HDR

Feature	LG UltraGear 39GX950B	LG UltraGear 27GX704A-B
HDR Format	VESA DisplayHDR True Black 500	HDR10, DisplayHDR True Black 400
Peak Brightness (HDR)	1,500 nits15% more	1,300 nits

Connectivity

Feature	LG UltraGear 39GX950B	LG UltraGear 27GX704A-B
HDMI Ports	2	2
DisplayPort	1	1
USB-C	Yes	No
Power Delivery	90 W	N/A
USB Hub	Yes	Yes

Ergonomics

Feature	LG UltraGear 39GX950B	LG UltraGear 27GX704A-B
Height Adjustment	Yes	Yes
VESA Mount	100 × 100 mm	100 × 100 px
Built-in Speakers	Yes	No
Dimensions (without stand)	92.14 × 40.5 × 11.87 cm	60.52 × 35.1 × 4.53 cm
Weight (without stand)	6.8 kg	4.8 kg
Release Date	April 1, 2026	September 1, 2025

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about LG UltraGear 39GX950B vs LG UltraGear 27GX704A-B comparison

Based on our overall comparison score, LG UltraGear 39GX950B rates higher at 79/100 versus 71/100 for LG UltraGear 27GX704A-B — a 8-point lead. LG UltraGear 39GX950B is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.

LG UltraGear 39GX950B and LG UltraGear 27GX704A-B are compared side by side above across every spec in the monitors category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 79/100 for LG UltraGear 39GX950B and 71/100 for LG UltraGear 27GX704A-B.

If you want the higher-rated monitors option overall, LG UltraGear 39GX950B (79/100) edges out LG UltraGear 27GX704A-B (71/100). But if LG UltraGear 27GX704A-B is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.