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LG

LG 27GP850-B 4K Gaming Monitor

  • 27-inch 4K Nano IPS
  • 144Hz, 1ms GtG
  • G-Sync Compatible, FreeSync Premium
  • HDR 400
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Is the LG 27GP850-B 4K Gaming Monitor worth it?

Yes, for the right buyer. The LG 27GP850-B 4K Gaming Monitor ranks #2 in our Best 4K Monitors 2026 list. Its biggest strength: 144Hz at 4K via DisplayPort 1.4. The main caveat: hDR 400 is not true HDR, no local dimming.

Overview

What the LG 27GP850-B 4K Gaming Monitor does well

4K 144Hz IPS gaming monitor with 1ms GtG response time and NVIDIA G-Sync compatibility. 4 and 1ms response time for fast-paced gaming. The tradeoff: hDR 400 is not true HDR, no local dimming.

Specs that matter

Key features

  • 27-inch 4K Nano IPS
  • 144Hz, 1ms GtG
  • G-Sync Compatible, FreeSync Premium
  • HDR 400
The trade-offs

Pros & cons

Pros

  • 144Hz at 4K via DisplayPort 1.4
  • 1ms response time for fast-paced gaming
  • Wide color gamut from Nano IPS

Cons

  • HDR 400 is not true HDR, no local dimming
  • Expensive for gaming at 4K
Fit check

Should you buy the LG 27GP850-B 4K Gaming Monitor?

Think twice if this matters to you

  • HDR 400 is not true HDR, no local dimming
  • Expensive for gaming at 4K
Where it ranks

Featured in 1 best-of list

ListRank
Best 4K Monitors 2026#2 / 5
Cross-shop

Alternatives to the LG 27GP850-B 4K Gaming Monitor

Products ranked near it in our research, each better for a slightly different buyer.

Buying advice: monitors

  1. IPS: best color accuracy and viewing angles for work/design. VA: deeper contrast for movies. OLED: perfect blacks and response times, with burn-in considerations for static desktop use.
  2. 27" at 1440p is the sweet spot for most desk work; 4K shines at 27–32" for design and text sharpness. Match resolution to your GPU for gaming.
  3. 60 Hz is fine for office work; 120–144 Hz+ makes motion visibly smoother for gaming and even cursor movement.
  4. Height, tilt, swivel, and pivot adjustment matter more than people expect, or budget for a VESA monitor arm.
  5. USB-C with power delivery turns a monitor into a laptop dock with one cable. Check wattage covers your laptop's charger.

Read the full guides

Answers

LG 27GP850-B 4K Gaming Monitor: common questions

Is the LG 27GP850-B 4K Gaming Monitor worth buying?

Yes, for the right buyer. The LG 27GP850-B 4K Gaming Monitor ranks #2 in our Best 4K Monitors 2026 list. Its biggest strength: 144Hz at 4K via DisplayPort 1.4. The main caveat: hDR 400 is not true HDR, no local dimming.

What are the downsides of the LG 27GP850-B 4K Gaming Monitor?

The main trade-offs owners and reviewers point to: hDR 400 is not true HDR, no local dimming; expensive for gaming at 4K.

What are the key features of the LG 27GP850-B 4K Gaming Monitor?

27-inch 4K Nano IPS, 144Hz, 1ms GtG, G-Sync Compatible, FreeSync Premium and HDR 400.

What are the best alternatives to the LG 27GP850-B 4K Gaming Monitor?

Worth comparing: Dell UltraSharp U2723D, Samsung Odyssey Neo G7 4K and LG 27UP850-W 27" 4K UHD IPS Monitor. Each ranks near it in our research for a slightly different buyer.

Where can I buy the LG 27GP850-B 4K Gaming Monitor?

It's sold on Amazon. Prices and stock change often, so check the current listing before you buy, our link takes you straight to it.

Is 4K worth it for a 27-inch monitor?

At 27 inches, 4K (3840x2160) provides 163 pixels per inch, noticeably sharper than 1440p (109 PPI) for text and fine UI details. For daily work involving text, spreadsheets, and web content, 4K at 27 inches is the sweet spot where pixel density improvement is clearly visible without requiring scaling. For gaming, 4K at 27 inches requires a powerful GPU, an RTX 4070 Ti or RX 7900 GRE at minimum for 60fps in demanding titles.

What is the best panel type for a 4K monitor?

IPS panels (Dell UltraSharp series, LG Nano IPS) provide the best combination of color accuracy and viewing angles for work and creative use, the standard recommendation for professionals. OLED panels provide the best contrast and black levels but cost significantly more and have potential burn-in concerns for static UI elements. VA panels provide higher contrast than IPS at a lower price but slower pixel response times. For general work use: IPS. For content consumption and gaming: OLED if budget allows, IPS otherwise.

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