LG 39GX90SA-W Review: Is this 39" 240Hz OLED monitor the ultimate all-in-one display? We test its gaming performance, image quality & ultrawide immersion to see if it's worth the premium price.
For PC gamers, the pursuit of the perfect display is endless. You want the immersive, perfect blacks of an OLED, the buttery-smooth motion of a ultra-high refresh rate, and the practical real estate of an ultra-wide screen. Until recently, you had to choose two—and compromise on the third. Enter the **LG UltraGar 39GX90SA-W**. This 39-inch curved OLED monitor isn’t just an incremental upgrade; it’s a potential paradigm shift, combining a 3440×1440 resolution with a blistering **240Hz refresh rate**. We’re breaking down the specs to see if this unique blend is the ultimate endgame display for both immersive and competitive gamers.
LG 39GX90SA-W: Key Specs at a Glance
- Display: 39″ OLED Curved (800R)
- Resolution: 3440 x 1440 (UWQHD)
- Key Feature: 240Hz OLED – The best of both worlds
- HDR: VESA DisplayHDR True Black 400
- Adaptive Sync: NVIDIA® G-SYNC® Compatible with AMD FreeSync™ Premium Pro
- Ports: HDMI 2.1, DisplayPort 1.4, USB Hub
Why This Spec Combo is a Game-Changer
The 39GX90SA-W sits in a sweet spot that no other monitor really occupies.
1. The 240Hz OLED Advantage: Speed Meets Fidelity
This is the headline. OLED technology delivers per-pixel lighting, meaning infinite contrast, perfect blacks, and pixel-level precision. This creates the most vibrant, depth-filled image possible. Pair that with a 240Hz refresh rate, and you get motion so smooth and clear it feels like you’re looking through a window. There is no blur, no ghosting—just pure, responsive clarity that provides a tangible advantage in fast-paced games.
2. The “Just Right” Form Factor: 39″ Ultrawide
The 21:9 ultra-wide aspect ratio is immersive for RPGs and sims, but many 45-inch+ models are overwhelmingly large for competitive play. At **39 inches**, this LG offers a massive upgrade in immersion over a 34-inch model without becoming a desk-dominating behemoth. You can see more of the game world without needing to turn your head.
3. The Resolution Sweet Spot: UWQHD (3440×1440)
This resolution is the perfect partner for this size and refresh rate. It’s significantly sharper than 1080p, but not as demanding to drive as 4K. To hit a consistent 240 frames per second, even the most powerful GPUs will appreciate the slightly lower pixel count compared to 4K, making high-frame-rate gaming more achievable.
Who This Monitor is an Absolute Dream For (And Who Should Pass)
✅ YES, This is Your Endgame If:
- You are a hybrid gamer who plays both immersive single-player titles (Cyberpunk, Elden Ring) and competitive FPS games (Apex Legends, Counter-Strike 2).
- You demand the best possible motion clarity and response times without sacrificing image quality.
- You have a high-end GPU (RTX 4080/4090 or equivalent) that can push high frame rates at this resolution.
- You want an all-in-one display that eliminates the need for a second “competitive” monitor.
❌ NO, Consider Another Option If:
- You are a pure productivity user or content creator who needs color accuracy for print/design work (risk of OLED burn-in with static UI elements).
- Your primary use is console gaming (PS5/Xbox Series X); a 4K 16:9 TV or monitor is a better fit.
- You are on a strict budget; this is a premium, flagship product.
- You absolutely need 4K resolution above all other factors.
Frequently Asked Questions (FAQ)
Should I be worried about OLED burn-in?
The risk is real but often overstated for modern OLEDs. LG uses preventative tech like pixel shifting, logo detection, and screen savers. For a diversified use case of gaming, media consumption, and general use, burn-in is unlikely to be an issue for most users within the monitor’s lifespan. Using common sense (hiding taskbars, using screen savers) mitigates risk further.
Is the curve aggressive?
The 800R curvature is designed to match the natural curve of the human eye, pulling you into the experience and ensuring consistent image quality from edge to edge without color shift. It enhances immersion, especially in sim racing and flight games.
Does it have good HDR?
Yes. While it doesn’t get as eye-searingly bright as some Mini-LED monitors, it earns the VESA DisplayHDR True Black 400 certification. Because OLED pixels can turn off completely, the HDR experience is incredible, with perfect blacks that make highlights pop with stunning contrast.
What GPU do I need to run this?
To truly take advantage of the 240Hz refresh rate in demanding games, you will need a top-tier GPU like an **NVIDIA RTX 4080 or 4090** or an **AMD RX 7900 XTX**. For less demanding esports titles, a more mid-range card will suffice.
The Verdict: A New Benchmark for High-End Gaming
The **LG UltraGear 39GX90SA-W** isn’t for everyone. It’s a specialized, premium tool for a specific audience: the discerning gamer who refuses to compromise. By successfully marrying the unparalleled image quality of OLED with the blistering performance of a 240Hz refresh rate in a practical ultra-wide form factor, LG hasn’t just released another monitor—they’ve created a new category leader. It is arguably the most well-rounded, high-performance gaming monitor on the market. If you have the hardware to power it and the budget to acquire it, this monitor doesn’t feel like an upgrade. It feels like a revelation.
Ready to Experience It?
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