LG UltraGear 27GX790A 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 27GX790A is the better pick — it scores 56/100 to the LG UltraGear 27GX704A-B's 52, leading on Performance. Choose the LG UltraGear 27GX704A-B instead if you want to spend less.

Verdict

Our overall take, at a glance

LG UltraGear 27GX790A and LG UltraGear 27GX704A-B are closely matched

LG UltraGear 27GX790A

LG UltraGear 27GX704A-B

Where LG UltraGear 27GX790A stands out

Performance Refresh Rate: 480 Hz (100% more)

Watch-outs

Compromises to know before you buy

LG UltraGear 27GX790A

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

LG UltraGear 27GX704A-B

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

Winner by category for LG UltraGear 27GX790A vs LG UltraGear 27GX704A-B
Category	LG UltraGear 27GX790A	LG UltraGear 27GX704A-B	Winner
Panel	59	59	Tie
Image Quality	50	50	Tie
Performance	60	40	LG UltraGear 27GX790A
HDR	50	50	Tie
Connectivity	38	38	Tie
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 27GX790A

The LG UltraGear 27GX790A is a 26.5-inch flat monitor featuring a 1440p WOLED panel designed for high-end competitive gaming. It stands out with a 480 Hz refresh rate and an ultra-fast 0.03 ms response time to deliver exceptional motion smoothness. Image quality is enhanced by a 1,500,000:1 contrast ratio, 98% DCI-P3 color coverage, and peak HDR brightness reaching 1300 nits.

Best for Competitive esports gaming requiring maximum motion clarity and minimal latencyBest for HDR gaming in low-light environments demanding deep contrast and accurate colors

Pros

Ultra-high 480 Hz refresh rate paired with a near-instant 0.03 ms response time
Exceptional contrast ratio and deep black levels characteristic of WOLED technology
High peak HDR brightness of up to 1300 nits with DisplayHDR True Black 400 support
Broad adaptive-sync support covering both FreeSync Premium Pro and G-Sync compatibility

Cons

No USB-C connectivity for display input or single-cable charging
Modest typical SDR brightness rating of 275 nits

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

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LG UltraGear 27GX790A

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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 27GX790ALG UltraGear 27GX704A-B

LG UltraGear 27GX790A is 0.3 kg (6%) heavier than LG UltraGear 27GX704A-B.

Detailed Specifications

The full spec sheet, side by side

Panel

Feature	LG UltraGear 27GX790A	LG UltraGear 27GX704A-B
Screen Size	26.5 in	26.5 in
Resolution	2560 × 1440 px	2560 × 1440 px
Panel Type
Aspect Ratio	16:9	16:9
Pixel Density	111	111
Curved	No	No
Screen-to-body ratio	91%	91%

Image Quality

Feature	LG UltraGear 27GX790A	LG UltraGear 27GX704A-B
Brightness (typical)	275 nits	275 nits
Contrast Ratio	1500000:1	1500000:1
Color Gamut (DCI-P3)	98	98
Color Depth	10-bit	10-bit

Performance

Feature	LG UltraGear 27GX790A	LG UltraGear 27GX704A-B
Refresh Rate	480 Hz100% more	240 Hz
Response Time (GtG)	0.03 ms	0.03 ms
Adaptive Sync	G-Sync Compatible / FreeSync Premium Pro	FreeSync Premium Pro / G-Sync Compatible

HDR

Feature	LG UltraGear 27GX790A	LG UltraGear 27GX704A-B
HDR Format	HDR10, DisplayHDR True Black 400	HDR10, DisplayHDR True Black 400
Peak Brightness (HDR)	1,300 nits	1,300 nits

Connectivity

Feature	LG UltraGear 27GX790A	LG UltraGear 27GX704A-B
HDMI Ports	2	2
DisplayPort	1	1
USB-C	No	No
USB Hub	Yes	Yes

Ergonomics

Feature	LG UltraGear 27GX790A	LG UltraGear 27GX704A-B
Height Adjustment	Yes	Yes
VESA Mount	100 × 100 px	100 × 100 px
Built-in Speakers	N/A	No
Dimensions (without stand)	60.52 × 35.1 × 4.53 cm	60.52 × 35.1 × 4.53 cm
Weight (without stand)	5.1 kg	4.8 kg
Release Date	N/A	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 27GX790A vs LG UltraGear 27GX704A-B comparison

Based on our overall comparison score, LG UltraGear 27GX790A rates higher at 74/100 versus 71/100 for LG UltraGear 27GX704A-B — a 3-point lead. LG UltraGear 27GX790A 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 27GX790A 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 74/100 for LG UltraGear 27GX790A and 71/100 for LG UltraGear 27GX704A-B.

If you want the higher-rated monitors option overall, LG UltraGear 27GX790A (74/100) 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.