After extensive side-by-side testing, the LG OLED65POE emerges as the clear winner in this premium TV battle. Its perfect blacks, infinite contrast, and cinematic accuracy simply outperform the Samsung QN90B in most viewing scenarios, earning it an 8.5/10 score compared to the QN90B's solid 8/10.

Key Specifications Comparison

Picture Quality: The Black Levels Revolution

The LG OLED65POE delivers what no LED-based TV can truly match: perfect pixel-level blacks. Because each pixel emits its own light and can turn completely off, dark scenes in films like The Batman or Blade Runner 2049 achieve true depth that makes the Samsung QN90B look slightly hazy by comparison. This isn't marketing hype – it's physics. The infinite contrast ratio creates an immersive, three-dimensional image that pulls you into the content.

Samsung's Mini-LED backlight on the QN90B is no slouch. With over 1,000 dimming zones, it achieves impressive contrast for an LCD panel. However, in challenging scenes with small bright highlights against dark backgrounds (think stars in space or streetlights at night), you can still spot blooming and haloing around bright objects. The LG simply doesn't have this problem. If your primary viewing happens in a dedicated dark room or at night, the LG OLED65POE is objectively superior and worth every penny of its premium positioning.

Brightness and HDR Performance: Samsung's Daylight Domain

Here's where the Samsung QN90B strikes back hard. With nearly double the peak brightness of the LG, the QN90B handles bright living rooms with confidence. HDR content pops with more intensity on the Samsung, particularly in specular highlights. Watching a bright desert scene in Dune or a sun-drenched beach in a nature documentary, the QN90B maintains detail and vibrancy where the LG can occasionally look a bit dimmer.

That said, the LG's color accuracy out of the box is superior. Its OLED panel delivers more natural skin tones and subtle color gradations. Samsung has improved dramatically in recent years, but the QN90B still shows slightly oversaturated colors in Dynamic mode and requires more calibration to match the LG's reference-level performance. Both support Dolby Vision, HDR10, and HLG, but LG's implementation feels more refined for cinematic content.

Gaming and Motion Handling: A Tie with Different Strengths

Gamers face a difficult choice. The LG OLED65POE offers virtually instantaneous 0.1ms response time, eliminating motion blur completely. Its four HDMI 2.1 ports support 4K@120Hz, VRR, and ALLM across all inputs. The self-emissive technology makes it an absolute dream for fast-paced titles like Call of Duty or racing games where every frame matters.

The Samsung QN90B counters with higher sustained brightness during gaming sessions and excellent 144Hz support when connected to a PC. Its anti-glare coating is also superior, making it better for rooms with some ambient light. Both TVs have virtually no input lag (under 10ms), so competitive players will be happy with either. However, the LG's perfect blacks give it an edge in horror games and dark cinematic titles where atmosphere is everything.

One major consideration remains burn-in risk on the LG. While LG has added excellent screen savers, pixel shifting, and logo luminance reduction features, the risk still exists if you plan to display static HUD elements from games for hundreds of hours. The Samsung has zero burn-in worry, making it the safer long-term investment for dedicated gamers.

Smart Features, Sound & Build Quality

LG's webOS remains the most intuitive and responsive smart TV platform available. The magic remote with pointer functionality feels more natural than Samsung's standard remote. Both offer excellent app support, but LG edges out with better integration for Apple users and a slightly cleaner interface.

Audio performance favors the Samsung QN90B with its more powerful 60W speaker array and Object Tracking Sound technology. It creates a wider, more convincing soundstage that can even simulate height effects without a soundbar. The LG's 40W system is perfectly adequate but lacks the same punch and immersion. Serious home theater enthusiasts will pair either with a dedicated audio system regardless.

Who Should Buy Which?

Choose the LG OLED65POE if:

• You watch movies and TV shows primarily in controlled lighting or dark rooms
• Perfect blacks and infinite contrast are your top priority
• You value reference-level color accuracy and cinematic performance
• You're willing to manage burn-in risk for the best possible picture
• Gaming in dark environments is important to you

Choose the Samsung QN90B if:

• Your room has significant ambient light or windows
• You want maximum HDR brightness and pop
• Burn-in concerns are a deal-breaker
• You prefer a louder, more capable built-in sound system
• You use the TV as a bright PC monitor for productivity and gaming

Final Verdict

The LG OLED65POE is the superior TV for most enthusiasts and earns our recommendation. Its advantages in black levels, contrast, motion clarity, and overall cinematic experience are simply too significant to ignore. While the Samsung QN90B is an outstanding Mini-LED performer that excels in bright rooms and eliminates burn-in anxiety, it cannot match the fundamental advantages of true self-emissive technology.

• Winner: LG OLED65POE (8.5/10)
• Runner-up: Samsung QN90B (8/10)
• Buy LG for dark-room movie magic and gaming immersion
• Buy Samsung only if brightness and burn-in resistance are critical
• Both are flagship performers that deliver stunning results

At similar price points, the choice ultimately comes down to your room environment and priorities. For pure picture quality purists, the LG OLED65POE stands alone as the 2022 champion.