LG OLED55C5PUA vs Samsung QN55QN90CAFXZA
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Choosing between the LG OLED55C5PUA and Samsung QN55QN90CAFXZA? Both compete in the TV segment. Here’s how they compare across the specs that matter most for your home theater.
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Looking at overall performance dimensions: The LG OLED55C5PUA scores higher in value, form factor, room fit. They score similarly in video quality, gaming performance, ease of use, future-proofing.
On the display side, the LG OLED55C5PUA uses a WOLED panel while the Samsung QN55QN90CAFXZA uses VA. OLED panels produce perfect blacks by turning pixels off entirely. QD-OLED adds a quantum dot layer for wider color. VA panels offer better contrast than IPS but narrower viewing angles. Mini-LED is a backlight technology applied to LCD panels, offering thousands of dimming zones for improved contrast.
The LG OLED55C5PUA holds an advantage across more performance dimensions, but the Samsung QN55QN90CAFXZA may still be the better pick depending on which specs matter most to your setup. See the detailed comparison table below for the full breakdown.
For most home theaters, the LG OLED55C5PUA is the stronger choice — it leads in 3 of 7 scored dimensions. The Samsung QN55QN90CAFXZA makes more sense if budget is the primary constraint.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Screen Size | 55" | 55" |
| Resolution | 4K | 4K |
| Panel Type | WOLED | VA |
| Backlight Type | none | direct-lit |
| Native Contrast Ratio | Infinite | Quantum Matrix Technology |
| HDR Formats | HDR10, Dolby Vision, HLG | HDR10, HDR10+, HLG |
| Refresh Rate | 120Hz | 120Hz |
| VRR | Yes | Yes |
| VRR Type | FreeSync+G-Sync | FreeSync |
| ALLM | Yes | Yes |
| Smart OS | webOS | Tizen |
| Speaker Config | 2.2 | 4.2.2 |
| Dolby Atmos (Speakers) | Yes | Yes |
| HDMI Total Ports | 4 | 4 |
| HDMI 2.1 Ports | 4 | 4 |
| eARC Port | Yes | No |
| VESA Pattern | 300x200 | ?Wall mount size standard (VESA) that supports extending, pivoting, or tilting the TV. |
| Processor | α9 AI Processor 4K Gen8 | Neural Quantum Processor 4K |
| Model Year | — | 2023 |
Key Differences
- Processor: LG OLED55C5PUA at α9 AI Processor 4K Gen8 vs Samsung QN55QN90CAFXZA at Neural Quantum Processor 4K
- HDR Formats: LG OLED55C5PUA at HDR10, Dolby Vision, HLG vs Samsung QN55QN90CAFXZA at HDR10, HDR10+, HLG. Dolby Vision adds dynamic metadata that adjusts brightness scene-by-scene. HDR10 is the baseline. HDR10+ is Samsung's alternative to Dolby Vision.
- Series Name: LG OLED55C5PUA at C5 vs Samsung QN55QN90CAFXZA at QN90C
- USB Type: LG OLED55C5PUA at 3ea (v 2.0) vs Samsung QN55QN90CAFXZA at 2
- Panel Type: LG OLED55C5PUA at WOLED vs Samsung QN55QN90CAFXZA at VA. OLED panels produce perfect blacks by turning pixels off entirely. QD-OLED adds a quantum dot layer for wider color. VA panels offer better contrast than IPS but narrower viewing angles. Mini-LED is a backlight technology applied to LCD panels, offering thousands of dimming zones for improved contrast.
Which Should You Choose?
Choose LG OLED55C5PUA if you want:
- + better depth (w/ stand)
- + lighter weight for easier placement
- + lighter weight for easier placement
See Where These Rank
Check our editorial rankings to see how LG OLED55C5PUA and Samsung QN55QN90CAFXZA compare to the rest of the field.
Best TV RankingsRelated Calculators
Specifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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