OLED#25 in our OLED rankingsBest for sim racing and flight sims
LG UltraGear 45GX950A-B review
A 45-inch 5120×2160 800R WOLED with a 2560×1080 330Hz dual mode: the most immersive OLED we cover, built for racing and flight sims.
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Quick verdict
The 45GX950A-B is a large, sharply curved 5K2K ultrawide that Tom's Hardware named its best ultrawide OLED and TFTCentral picked for the 45-inch class. Tom's Hardware found it bright (457 nits SDR, 673 nits at a 25% HDR window), stunning in HDR, and exceptional for racing and flight simulators.
The 800R curve is extreme; Tom's Hardware noted it can distort the image for desk work. The 330Hz mode drops to 2560×1080, which lowers pixel density a lot. LG's warranty is 2 years. You also need a powerful GPU to drive 5120×2160 at high frame rates.
45″ · 5K2K · 165Hz · dual mode 2560×1080 at 330Hz · WOLED
Buy it if
- You play racing or flight sims.
- You have a high-end GPU.
- You have a deep desk.
Skip it if
- You do a lot of spreadsheet or design work; the curve distorts straight lines.
- You play competitive shooters.
Key specifications
| Exact model | 45GX950A-B |
|---|---|
| Size / aspect | 45″ / 21:9 |
| Resolution | 5120×2160 |
| Refresh rate | 165Hz |
| Dual mode | 2560×1080 at 330Hz |
| Panel family | OLED |
| Panel subtype | WOLED |
| Subpixel layout | Unknown |
| Coating | Unknown |
| Curvature | 800R curve |
| Backlight | Not applicable (self-emissive) |
| Motion technology | Unknown |
| Adaptive sync / VRR | G-SYNC Compatible; FreeSync Premium Pro |
| HDR | VESA DisplayHDR True Black 400 |
| DisplayPort | 1x DisplayPort 2.1 |
| HDMI | 2x HDMI 2.1 |
| USB-C | DisplayPort Alt Mode with 90W power delivery |
| USB ports | 2 USB downstream |
| KVM switch | Unknown |
| Audio | Unknown |
| Stand | Adjustable stand |
| VESA mount | Unknown |
| Warranty | 2 years (US); burn-in covered per LG's 2023 statement |
Specifications are manufacturer-stated unless marked as measured. “Unknown” means we could not verify the value, not that it is zero or absent.
Advantages and drawbacks
Advantages
- 5120×2160 at 45 inches (125 ppi).
- Bright for an OLED in Tom's Hardware's testing.
- Dual mode 330Hz at 2560×1080.
- DisplayPort 2.1 and 90W USB-C.
Drawbacks
- 800R curve can distort the image.
- Gamma errors after calibration, per Tom's Hardware.
- 330Hz mode greatly reduces sharpness.
- 2-year warranty.
What independent testing reports
| Metric | Reported result | Conditions | Source |
|---|---|---|---|
| SDR brightness | 457 nits | Peak, high brightness setting | Tom's Hardware, November 15, 2025 |
| HDR brightness | 673 nits | 25% window | Tom's Hardware, November 15, 2025 |
These are third-party results, not our tests. Different outlets use different methods, so compare numbers only within the same source.
Motion, response, and latency
Tom's Hardware found motion very quick with no lag detected. The 330Hz dual mode halves frame duration but runs at 2560×1080.
Image quality and HDR
Tom's Hardware measured 457 nits peak SDR and 673 nits at a 25% HDR window (LG claims 1,300 nits at 1.5%). At 125 ppi, text is sharp enough for graphics work, though the curve bends straight lines.
Connectivity, PC, and console notes
DisplayPort 2.1, two HDMI 2.1 ports, USB-C with DisplayPort Alt Mode and 90W charging, and two USB downstream ports.
OLED care and warranty
LG includes pixel orbiting and automatic image cleaning. Tom's Hardware lists a 2-year warranty; LG's 2023 statement says US UltraGear OLED coverage includes burn-in for normal residential use.
Warranty: Tom's Hardware lists a 2-year warranty. LG stated in 2023 that US UltraGear OLED coverage includes burn-in for normal residential use. Confirm current terms with LG. Source: TechRadar, August 11, 2023, checked September 30, 2026.
Alternatives worth comparing
MSI MPG 341CQR QD-OLED X36
34″ · 3440×1440 · 360Hz · QD-OLED (5th gen, Penta Tandem)
34-inch RGB-stripe ultrawide at 360Hz with a gentler curve for desk work.
Questions buyers ask
What GPU do I need?
5120×2160 is about 11 million pixels, more than 4K. Expect to lower settings or use upscaling in demanding games, even on high-end GPUs. We do not estimate frame rates; check benchmarks for your card and games.
Final recommendation
The 45GX950A-B is the OLED for sim rigs and immersive single-player gaming. For mixed desk use, a 34-inch ultrawide is more practical.
Sources
- LG Ultra Gear 45GX950A OLED gaming monitor review — Tom's Hardware, November 15, 2025 (independent testing)
- LG finally clarifies whether its warranty covers OLED burn-in on gaming monitors — TechRadar, August 11, 2023 (independent news)
- The Best OLED Gaming Monitors to Buy in 2026 — TFTCentral, August 28, 2026 (independent testing)
- Best OLED Gaming Monitors 2026 — Tom's Hardware, August 27, 2026 (independent testing)
- Amazon listing for this exact model (ASIN B0DYG9DKX8), matched on September 30, 2026 by its listing title. We do not show Amazon prices or ratings.
First published . Last substantive update .