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LG 27G850A-B 27-inch Ultragear 4K UHD

Display • LG • $ 855.96

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Unleash Dual-Mode Gaming with the LG 27G850A-B

The LG 27G850A-B Ultragear monitor is a 27-inch powerhouse engineered for gamers and creators who demand the absolute best. With a stunning 4K UHD (3840×2160) resolution and a blazing-fast 240Hz refresh rate, this display delivers razor-sharp visuals and buttery-smooth motion. But it doesn't stop there—its innovative Dual-Mode feature lets you switch to a 1920×1080 (FHD) resolution with an incredible 480Hz refresh rate, giving you the competitive edge in fast-paced esports titles.

Key Features & Performance

Dual-Mode Flexibility: Seamlessly toggle between 4K@240Hz for immersive single-player experiences and FHD@480Hz for ultra-responsive competitive gaming.
IPS Black Technology: Enjoy deeper blacks and higher contrast ratios (2000:1) compared to standard IPS panels, enhancing both gaming and content creation.
Ultra-Fast Response: 1ms (GtG) response time eliminates ghosting and motion blur, keeping fast action crisp and clear.
Vivid Color Accuracy: Covers 99% of the DCI-P3 color gamut, ensuring lifelike colors and accurate reproduction for creative work.
Premium Connectivity: Equipped with DisplayPort 2.1 and two HDMI 2.1 ports, supporting the latest GPUs and consoles at full bandwidth.
Adaptive Sync: AMD FreeSync Premium Pro and NVIDIA G-SYNC Compatible certification ensure tear-free, stutter-free gameplay.
Ergonomic Design: Height-adjustable stand with tilt, swivel, and pivot options, plus VESA 100×100mm mount compatibility.

Who Is It For?

This monitor is perfect for serious gamers who want a single display that excels in both high-resolution AAA gaming and high-refresh-rate esports. It's also an excellent choice for content creators who need accurate colors and high pixel density for photo and video editing. The combination of 4K clarity and 480Hz speed makes it a versatile investment for any high-end setup.

Performance Highlights

In real-world usage, the LG 27G850A-B shines. The 4K panel offers incredible detail, while the 240Hz refresh rate ensures smooth gameplay in demanding titles. Switching to FHD mode at 480Hz provides an almost instantaneous response, giving you a competitive advantage in shooters like Valorant or CS:GO. The IPS Black panel delivers impressive contrast, making dark scenes more immersive. With HDMI 2.1, it's also future-proof for next-gen consoles, though note that console gaming is limited to 120Hz at 4K.

Use Cases

Competitive Esports: FHD 480Hz mode for minimal input lag and maximum fluidity.
AAA Gaming: 4K 240Hz for stunning visuals with high frame rates.
Content Creation: 99% DCI-P3 coverage and IPS Black for accurate color grading.
Productivity: 4K resolution provides ample screen real estate for multitasking.

Key Specifications

Screen Size: 27 Inches

Resolution: 3840 × 2160 (4K UHD)

Aspect Ratio: 16:9

Screen Surface: Anti‑Glare (Matte IPS Black)

Response Time: 1 ms (GtG)

Refresh Rate: 240 Hz (4K UHD mode; 480 Hz in FHD Dual‑Mode)

Ports: 2 × HDMI 2.1 / 1 × DisplayPort 2.1 / 1 × 3.5 mm audio jack / Up‑stream USB‑B; 2 × USB‑A downstream

Sync Support: AMD FreeSync Premium Pro & NVIDIA G‑SYNC Compatible

Color Accuracy: 99% DCI‑P3 (~95% sRGB)

Built-in Speakers: No

Audio Jack: Yes (4‑pole 3.5 mm headphone+mic)

Viewing Angle: 178° × 178°

Weight: ~9.4 kg (20.7 lb) with stand; ~5.2 kg (11.5 lb) without

VESA

Yes (100 × 100 mm)

Where to Buy

Amazon

Pros

Dual-Mode: 4K@240Hz and FHD@480Hz in one monitor
IPS Black panel with 2000:1 contrast ratio for deeper blacks
Excellent color accuracy (99% DCI-P3) for creators
Future-proof connectivity with DisplayPort 2.1 and HDMI 2.1
Ergonomic stand with full adjustments and VESA compatibility

Cons

No built-in speakers
Premium price point
Limited to 120Hz at 4K on consoles due to HDMI 2.1 bandwidth

Frequently Asked Questions

What is the Dual-Mode feature on the LG 27G850A-B?

Dual-Mode allows you to switch between 4K UHD at 240Hz for high-resolution gaming and FHD (1920x1080) at 480Hz for ultra-fast competitive play. This gives you the flexibility to choose between visual fidelity and maximum refresh rate depending on the game.

Is the LG 27G850A-B compatible with both AMD and NVIDIA graphics cards?

Yes, it supports both AMD FreeSync Premium Pro and is NVIDIA G-SYNC Compatible, so you can enjoy tear-free, stutter-free gaming with either brand of GPU.

Does the monitor have built-in speakers?

No, the LG 27G850A-B does not have built-in speakers. However, it includes a 4-pole 3.5mm audio jack that supports both headphones and a microphone, so you can easily connect your own audio solution.

Can I use this monitor for console gaming?

Yes, it has two HDMI 2.1 ports, making it compatible with the latest consoles like PS5 and Xbox Series X. However, console output is limited to 120Hz at 4K, not the full 240Hz, due to console hardware limitations.

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