Verdict

The LG 27G640A-B is a powerhouse for serious gamers craving buttery-smooth 300Hz performance with solid 1440p image quality and versatile connectivity. However, its recurring flicker and glitch issues might drive you mad if you’re all about reliability. If the price feels steep, waiting for a deal or considering alternatives with more consistent quality control could be wise. For those prioritizing flawless, ultra-high refresh gaming and HDR in one package, this monitor is worthy of your attention—just be ready to manage the quirks.

Top pro:
Blazing fast 300Hz refresh rate and 1ms response time make this a dream for competitive 1440p gaming.
Top con:
Several users report a frustrating black screen flicker or flashing issue lasting 2-3 seconds, often unresolved by typical troubleshooting.
Get an alert when the price drops or it comes back in stock.

Pros

  • •Blazing fast 300Hz refresh rate and 1ms response time make this a dream for competitive 1440p gaming.
  • •Excellent color accuracy, deep blacks, and good brightness, especially suited for darker environments.
  • •Sturdy, well-built stand offering tilt, height, swivel, and pivot adjustments for comfortable setups.
  • •Supports both NVIDIA G-Sync and AMD FreeSync Premium, providing smooth tear-free gaming across GPUs.
  • •Includes versatile connectivity options like HDMI 2.1, DisplayPort, and USB Type-C, great for multi-device use.
  • •Minimal IPS glow and light bleed, resulting in strong screen uniformity and sharp image clarity.
  • •Easy-to-use controls via a single joystick button make adjusting settings intuitive.
  • •USB ports add convenience for peripherals and accessories.
  • •Comes with DisplayHDR 400 certification, delivering decent HDR experience for mid-tier monitors.
  • •Overall great value for high-end gaming when found at a reasonable price.

Cons

  • •Several users report a frustrating black screen flicker or flashing issue lasting 2-3 seconds, often unresolved by typical troubleshooting.
  • •Some units experience occasional vertical screen glitches or artifacts.
  • •Built-in speakers are underwhelming, described as low-quality and barely passable for basic audio needs.
  • •Brightness uniformity can be inconsistent across different parts of the screen.
  • •Stand, while sturdy, can feel a bit stiff or slightly wobbly in some cases.
  • •The aggressive energy-saving sleep mode might cause the screen to turn off too quickly, requiring manual tweaks.
  • •Dead pixels have been noted but tend to be minor and not disruptive in daily use.
  • •Overall quality control seems spotty, with replacement units sometimes exhibiting the same hardware issues.
  • •Not the best bang-for-the-buck if buying at full retail price—better deals or alternatives might offer more balanced features.
Available at Amazon
View at Amazon

We may earn a commission when you buy through these links, at no extra cost to you. How ShopSavvy makes money

How we researched this

About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from ShopSavvy's price data.

Get ShopSavvy
ShopSavvy is totally free and works on all popular phones and browsers
Download ShopSavvy AppDownload ShopSavvy App

Compare prices across tens of thousands of stores, set price alerts, watch for deals by keyword, and much more.

Install ShopSavvy Browser ExtensionInstall ShopSavvy Browser Extension

Compare and track prices automatically while you shop online at thousands of websites.