LG UltraGear 32GX870B review

The LG UltraGear 32GX870B-B combines a 31.5-inch fourth-generation Tandem WOLED panel with 4K gaming at 240Hz and a separate 1080p mode at up to 480Hz. It also introduces built-in AI upscaling and modern connectivity. We examine independent gaming tests, HDR performance, its advantages over earlier LG OLED monitors and current US pricing to determine whether the 32GX870B offers a worthwhile upgrade.

Dual Mode: 4K 240Hz or 1080p 480Hz?

The LG 32GX870B supports two distinct operating modes: 3840 × 2160 at 240Hz for detailed visuals, or 1920 × 1080 at 480Hz for competitive gaming.

The first mode is particularly attractive for demanding single-player games, while the second prioritizes responsiveness in titles such as Counter-Strike 2 and Valorant.

According to LG's official 32GX870B-B specifications, the monitor has a manufacturer-rated 0.03ms gray-to-gray pixel response time. That figure describes pixel transitions, not total input lag.

The monitor cannot display 4K at 480Hz. Achieving the higher refresh rate requires switching to Full HD, and the actual benefit depends on the connected PC's frame rate.

LG 32GX870B gaming performance and response

In its October 2026 testing, RTINGS found that the monitor delivers exceptionally clear motion, near-instantaneous pixel response and low input lag across its supported refresh rates.

The independent RTINGS review also identified noticeable VRR flicker in dark scenes when frame rates fluctuate. The problem is not necessarily present in every game, but it is an important limitation for buyers expecting flawless adaptive-sync performance.

A high refresh rate also needs a capable graphics card to provide enough frames. Our NVIDIA RTX 5080 review offers additional context on the demands of modern 4K gaming, although the GPU and game settings ultimately determine the achievable frame rate.

Tandem OLED image quality and HDR

The fourth-generation Tandem WOLED panel supports a typical 99.5% DCI-P3 color gamut and carries VESA DisplayHDR True Black 500 certification.

LG specifies 335 nits of typical brightness and up to 1,500 nits of peak HDR brightness under controlled testing conditions. The peak figure does not represent sustained full-screen brightness.

RTINGS found excellent black levels, high contrast and impressive HDR presentation. However, some bright colors are less vivid than bright whites, and visibility can become more difficult in a room with strong direct sunlight.

AI Upscaling: What does it actually do?

The 32GX870B-B includes built-in 4K AI Upscaling, powered by processing hardware inside the monitor. The feature is intended to improve the apparent detail of lower-resolution video and other compatible content without requiring a new GPU.

It should not be confused with a graphics-card upscaling technology that increases game rendering performance. It also cannot reproduce every detail of native 4K content.

LG recommends a 1080p 60Hz input for optimal AI upscaling, so this feature should be treated separately from the monitor's 1080p 480Hz competitive mode.

Connectivity, adaptive sync and consoles

Connectivity includes DisplayPort 2.1 with UHBR20 bandwidth, two HDMI 2.1 ports and USB-C with display input, data connectivity and up to 90W power delivery.

The display supports NVIDIA G-SYNC Compatibility and AMD FreeSync Premium Pro, while the adjustable stand allows height, tilt, swivel and pivot adjustments.

According to RTINGS, the monitor accepts 4K signals up to 120Hz from supported PlayStation 5 and Xbox Series X|S consoles. Its 240Hz and 480Hz capabilities are primarily intended for compatible PCs.

LG 32GX870B vs 32GS95UE: What's improved?

The LG 32GS95UE-B was already a 4K 240Hz / Full HD 480Hz dual-mode OLED monitor. The newer 32GX870B-B therefore builds on an existing concept rather than introducing the 480Hz mode for the first time.

RTINGS identifies the updated Tandem WOLED panel, improved brightness and color purity, DisplayPort 2.1 and USB-C connectivity as the main advantages of the newer model.

However, buyers finding the older 32GS95UE at a substantially lower price should compare the practical value of those upgrades rather than assuming the newer monitor is always the better purchase.

LG 32GX870B price and availability

The LG 32GX870B-B has appeared in US retail listings with a $1,399.99 reference price. Best Buy displayed a reduced price of $999.99 when checked in October 2026.

These figures are US-market retail prices, not verified offers for Egypt, Saudi Arabia, the UAE or Kuwait. Local stock, warranty coverage and retailer pricing must be checked separately.

Buyers should also distinguish the 32GX870B-B from similarly named LG OLED models. When evaluating the full cost of a 4K gaming setup, our NVIDIA RTX 5090 review provides context for the high-end GPU class, although even a flagship card cannot guarantee 240 FPS in every demanding game..