LG UltraGear Evo 39GX950B-B Review: Top Ultrawide OLED Display With One Key Drawback

Discover how the LG UltraGear Evo 39GX950B-B delivers exceptional 5K2K OLED gaming experiences with rich HDR and sharp visuals, but demands a powerful GPU and a premium budget.

LG UltraGear Evo 39GX950B-B Review: Top Ultrawide OLED Display With One Key Drawback
Sarah Collins

Sarah Collins

Computing Editor

Specializes in PCs, laptops, components, and productivity-focused computing tech.

What makes the LG UltraGear Evo 39GX950B-B stand out in gaming monitors?

The LG UltraGear Evo 39GX950B-B is a 39-inch ultrawide monitor boasting a 5K2K resolution (5120x2160) with a 21:9 aspect ratio, offering PC gamers an immersive and sharp visual experience that significantly enhances gaming and productivity. This monitor uses a 4th-generation tandem OLED panel, which improves brightness sustainability and reduces the risk of burn-in, a common concern with OLED displays.

Its high contrast ratio (about 1,850,000:1) and peak HDR brightness reaching up to 1,500 nits in small highlights deliver vivid colors and deep blacks, making games appear more lifelike with enhanced details, especially noticeable in HDR content like "Horizon Forbidden West." The pixel density is very high (143 PPI), enhancing text clarity and sharpness compared to lower-resolution ultrawide displays.

What GPU and system requirements should buyers expect?

The LG UltraGear Evo 39GX950B-B 5K2K OLED is a true endgame monitor, with  very little competition, but not without one major caveat | TechRadar
The LG UltraGear Evo 39GX950B-B 5K2K OLED is a true endgame monitor, with very little competition, but not without one major caveat | TechRadar

While the 5K2K resolution provides incredible detail and immersion, it also significantly increases the graphical workload by about 33% compared to standard 4K monitors. As a result, this monitor is best paired with a high-end GPU such as the NVIDIA RTX 4080 Super, RTX 5070 Ti, or better to maintain high frame rates without relying heavily on upscaling technologies.

For gamers with less powerful systems, the monitor offers a 1080p Dual Mode (2580x1080) that supports refresh rates up to 330Hz, suitable for competitive gaming with reduced GPU demands. Additionally, LG includes AI upscaling within the display itself, which can intelligently scale lower-resolution inputs to fill the 5K2K screen, although many gamers might prefer built-in GPU upscaling like NVIDIA's DLSS for optimal quality.

Overall, users should expect that investing in this display often necessitates upgrading or having a powerful gaming PC already to fully leverage its capabilities without compromise.

What are the benefits and limitations of the LG 39GX950B-B's design and features?

The monitor's design includes a sturdy and adjustable stand with excellent swivel, tilt, and height adjustment, providing ergonomic flexibility while saving desk space compared to larger ultrawides. Unlike some rivals with glossy panels, this monitor uses a matte, anti-glare coating that performs better under bright lighting or sunlight, minimizing reflections during gaming or work.

In terms of connectivity, it provides multiple ports including DisplayPort 2.1, HDMI 2.1, and a USB-C port with 90W power delivery, which is convenient for charging laptops or devices. It also features built-in 7W speakers, which can be a handy supplement for console gaming setups where Bluetooth audio options may be limited.

Despite the many features, the monitor can get noticeably warm after extended use—a trade-off expected given the panel's high pixel count and brightness levels.

How does the LG UltraGear Evo 39GX950B-B compare to competitors?

The LG UltraGear Evo 39GX950B-B 5K2K OLED is a true endgame monitor, with  very little competition, but not without one major caveat | TechRadar
The LG UltraGear Evo 39GX950B-B 5K2K OLED is a true endgame monitor, with very little competition, but not without one major caveat | TechRadar

The most direct competitor is the Alienware AW3926QW, which shares the 5K2K ultrawide OLED classification but with a lower price point, a glossy screen, Dolby Vision support, and an RGB stripe subpixel layout. The Alienware model starts at around $1,099 compared to LG's $1,799 price, making Alienware a more budget-friendly option.

The LG's matte finish and superior peak brightness provide slightly different user benefits, but the price difference is substantial and might deter many budget-conscious buyers. Additionally, Alienware's display includes Dolby Vision support, which this LG model lacks.

What should potential buyers consider before purchasing?

  • Consider this monitor if: You want one of the best and most immersive ultrawide OLED gaming experiences available, with top-tier HDR performance and excellent design that fits well on a standard desk without overwhelming space.
  • Avoid this monitor if: You have a mid-range or lower GPU, as running 5K2K natively is demanding and may require significant upscaling, potentially reducing image quality. Also, the premium price may be prohibitive, especially against more affordable competitors offering similar resolutions.

What is the key takeaway for gamers interested in the LG 39GX950B-B?

The LG UltraGear Evo 39GX950B-B 5K2K OLED is a true endgame monitor, with  very little competition, but not without one major caveat | TechRadar
The LG UltraGear Evo 39GX950B-B 5K2K OLED is a true endgame monitor, with very little competition, but not without one major caveat | TechRadar

The LG UltraGear Evo 39GX950B-B is a near-ideal ultrawide gaming monitor that excels in image quality through its advanced 4th-gen tandem OLED panel and stunning 5K2K resolution. For gamers with the necessary PC hardware and budget, it delivers an unmatched combination of color accuracy, contrast, and immersion. However, its steep price and demanding GPU requirements mean it's best suited for enthusiasts and those willing to invest heavily both in the monitor and their gaming PC. Considering the current hardware market and alternative offers, prospective buyers should weigh whether the performance benefits justify the cost and system upgrade needs.

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