LG 45GX950A-B Review: 5K2K OLED Gaming Monitor Endgame?

4.2/5
Enterprise

As an Amazon Associate I earn from qualifying purchases.

Check Price on Amazon
LG 45GX950A-B OLED Monitor
★★★★ ☆
4.2/5
💰
Enterprise
$1200+

⚡ Key Specifications

  • ▸ 45-inch 5K2K (5120x2160) WOLED
  • ▸ 165Hz Native / 330Hz Dual-Mode
  • ▸ 0.03ms Response Time (GtG)
  • ▸ WebOS Smart Platform Built-in
  • ▸ USB-C with 90W Power Delivery
Check Current Price on Amazon

LG 45GX950A-B at a glance

The LG 45GX950A-B is a bold attempt to solve the “productivity vs. gaming” dilemma for ultrawide enthusiasts. By pushing the resolution to 5120 x 2160 (5K2K), it offers significantly higher pixel density (~125 PPI) than standard 45-inch 1440p OLEDs, addressing one of the biggest complaints about large-format WOLED panels. It doesn’t stop there; LG has integrated its “Dual-Mode” technology, allowing competitive gamers to switch to a blisteringly fast 330Hz refresh rate at a lower resolution.

Disclosure: As an Amazon Associate, we earn from qualifying purchases.

Panel Type
WOLED (MLA+), Matte Finish
SPEC #1
Resolution
5120 x 2160 (5K2K / WUHD)
SPEC #2
Refresh Rate
165Hz (Native) / 330Hz (Dual-Mode)
SPEC #3
Response Time
0.03ms (GtG)
SPEC #4
Curvature
800R
SPEC #5
Ports
1x DP 2.1, 2x HDMI 2.1, 1x USB-C (90W PD)
SPEC #6
Dimensions
39.0 x 26.2 x 13.5 inches (w/ stand)
SPEC #7

Is 5K2K the Sweet Spot for Ultrawides?

For years, 45-inch OLEDs were held back by 3440 x 1440 resolution, which resulted in mediocre text clarity. The 45GX950A-B’s massive jump to 5120 x 2160 changes the equation. Games look sharper, and more importantly, text and UI elements are much crisper for productivity work. While it’s not quite “Retina” quality, it’s a noticeable upgrade that makes this monitor a viable single-screen solution for both work and play.

Does Dual-Mode Justify the Price?

The “Dual-Mode” feature is LG’s ace in the hole. With a few clicks, the monitor transforms from a high-resolution 165Hz immersive display into a 330Hz 1080p speed demon. This versatility means you don’t have to choose between graphical fidelity and competitive responsiveness. Combined with the deep blacks and near-instant response times of OLED, it handles everything from cinematic RPGs to twitchy shooters with ease.

Panel Performance & Design

The 800R curve is aggressive—fantastic for immersion in gaming but requiring an adjustment period for desktop use. Ergonomically, the stand takes up significant depth, so a deep desk is recommended. The matte coating effectively mitigates glare, a common issue with glossy OLEDs, though it softens the image slightly. With VESA DisplayHDR True Black 400 certification, the monitor delivers the infinite contrast expected of OLED, making HDR content pop, even if peak brightness trails Mini-LED competitors.

Resolution
5120 x 2160
Refresh Rate
165Hz (330Hz Dual-Mode)
Panel
WOLED (MLA+)
Response
0.03ms (GtG)
HDR
DisplayHDR True Black 400
Curvature
800R
👍 Perforex (Reddit)

"Games look amazing. I mainly play World of Warcraft and the aspect ratio/extra height compared to a 1440p screen is just as nice as the extra height given by my old 1600p. I really like the curve and I think it's required for a screen of this size."

👍 Flat_Comedian_6505 (Reddit)

"If you're looking directly head on, you really don't notice the curve. If you're at an off-angle, it does become pronounced. It really is super nice for gaming. It's bright enough in a dark room to pop."

⚠️ RobsterCrawSoup (Reddit)

"I just had to come to terms with the fact that the LG 45GX950A-B isn't for me. The text clarity is improved with some calibration to ClearType, but it can't fix the pixel pitch and I can really tell that my reading efficiency is really down on this thing."

👍 ThriceAlmighty (Reddit)

"Text clarity is great. Must have been the display unit. It was possibly running in dual mode (lower resolution and high refresh rate) or not set correctly at OS level."

Pros and Cons

Verdict

The LG 45GX950A-B is a powerhouse that bridges the gap between high-end productivity and elite gaming. If you can stomach the aggressive curve and the price, the combination of 5K2K resolution and Dual-Mode refresh rate makes it one of the most versatile monitors on the market. It’s not perfect—fan noise is a concern for silent PC builds—but for a do-it-all battlestation, it’s hard to beat.

View on Amazon

Share this review

Ready to buy?

Check the latest price on Amazon

Check Price on Amazon