The LG 27GX UltraGear OLED gaming monitor is currently available on Amazon for $679.99, marking a new lowest price for the high-performance display, according to PC Guide. Originally introduced as an extreme-performance screen built for competitive players seeking high refresh rates and low response times, the monitor features a dual-mode system that lets users switch between QHD at 540Hz and HD at 720Hz.
LG 27GX UltraGear Dual-Mode Performance and Pricing Breakdown
According to PC Guide, the $679.99 Amazon price tag represents a 32% discount and the platform’s lowest price yet for the 27-inch display. Meanwhile, 9to5toys reported that the monitor debuted last August as the “world’s fastest OLED monitor” before arriving in stores in December at a retail price of $1,000. 9to5toys noted a separate promotional price of $799.99, down 20% from its standard rate, showing varying retail discounts across platforms.
The monitor’s standout dual-mode feature allows players to use a hotkey to toggle between two distinct resolutions and refresh rates without navigating menu screens. According to PC Guide, the QHD mode runs at up to 540Hz for sharper visual detail, while the HD mode drops the resolution to support a 720Hz refresh rate. 9to5toys notes that the 720Hz configuration targets esports titles and competitive shooters where motion clarity and responsiveness take priority over resolution.
Pro Tip: Reaching 720Hz requires a powerful PC capable of outputting hundreds of frames per second. According to PC Guide, this performance target is far more achievable in lightweight competitive games running at reduced settings than in modern AAA titles.
Display Technology, Brightness, and Connectivity Specifications
Under the hood, the LG 27GX utilizes 4th-generation Primary RGB Tandem OLED technology. According to 9to5toys, this advanced four-stack RGB structure allows the panel to reach a typical brightness of 335 nits—making it LG’s brightest OLED gaming monitor yet—while consuming less power than previous UltraGear generations.

PC Guide points out that LG also updated the monitor’s Average Picture Level (APL) and Automatic Brightness Limiter (ABL) behavior. These adjustments help keep critical visual elements consistent and bright during intense scenes instead of allowing the entire image to dim automatically. Additional display specifications cited by PC Guide include a 0.02ms response time, UL Verified Perfect Black, DisplayHDR True Black 500, NVIDIA G-Sync compatibility, and AMD FreeSync Premium Pro support.
For connectivity, the hardware includes DisplayPort 2.1 to supply the bandwidth required for high-refresh-rate gaming, alongside two HDMI 2.1 ports for modern consoles and a USB-C connection to simplify compatible desktop setups, according to both PC Guide and 9to5toys.
Frequently Asked Questions
What is the main feature of the LG 27GX UltraGear monitor?
The primary feature is its dual-mode capability, which lets users switch via hotkey between a QHD resolution at 540Hz and an HD resolution at 720Hz.
What kind of PC hardware is needed for 720Hz gaming?
According to PC Guide, a PC must be capable of producing hundreds of frames per second to properly utilize a 720Hz refresh rate, making it best suited for lightweight competitive titles.
What is the response time of the LG 27GX?
The monitor features a 0.02ms response time, as reported by PC Guide and 9to5toys.
Does the monitor support variable refresh rate technologies?
Yes, the display supports both NVIDIA G-Sync compatibility and AMD FreeSync Premium Pro.
What are your thoughts on pushing refresh rates up to 720Hz, or do you prefer higher resolutions for cinematic gaming? Let us know in the comments below, and explore our site for more tech deals and hardware reviews.
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