LG OLED B3 65" vs Vizio P-Series Quantum 65"
The Verdict
Both 65-inch 4K TVs deliver compelling value but target different priorities. LG's B3 OLED excels with superior contrast and perfect blacks thanks to pixel-level dimming, true Dolby Vision support, and minimal 7ms input lag for gaming,ideal for cinephiles and competitive gamers. Vizio's P-Series Quantum counters with significantly brighter 1200-nit peak brightness (double the LG), superior for bright rooms, plus HDR10+ support and Wi-Fi 6 connectivity. Picture quality heavily favors OLED's infinite contrast ratio, though Vizio's local dimming and quantum dot technology narrows the gap. Both offer identical 120Hz refresh rates and gaming features. Audio is equivalent at 20W 2.0ch, though LG includes Dolby Atmos. At $300 less, Vizio represents exceptional value for bright-space viewing; LG justifies premium pricing with OLED's ultimate contrast and gaming responsiveness. Choose LG for dark-room performance and gaming, Vizio for bright environments and budget consciousness.
Who Should Buy
Buy the LG OLED B3 65" if…
- →Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- →Perfect blacks and infinite contrast inherent to OLED technology
- →Dolby Vision and Dolby Atmos for cinema-quality HDR experience
Buy the Vizio P-Series Quantum 65" if…
- →Strong price-to-performance — quantum dot color and FALD at $999
- →Both Dolby Vision and HDR10+ support all HDR content
- →120Hz with VRR and ALLM for console and PC gaming
Category Scores
Pros & Cons
LG OLED B3 65"
Pros
- Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- Perfect blacks and infinite contrast inherent to OLED technology
- Dolby Vision and Dolby Atmos for cinema-quality HDR experience
- 4x HDMI 2.1 ports with 4K@120Hz for gaming
- Wide viewing angles with no color shift
Cons
- Older α7 Gen6 processor — less effective upscaling than C3's α9
- 600 nits peak brightness is dim — struggles in bright rooms
- 20W speakers are weak — a soundbar is essential
- Wi-Fi 5 instead of Wi-Fi 6 on a 2023 model
Vizio P-Series Quantum 65"
Pros
- Strong price-to-performance — quantum dot color and FALD at $999
- Both Dolby Vision and HDR10+ support all HDR content
- 120Hz with VRR and ALLM for console and PC gaming
- 1200 nits peak brightness makes HDR content pop
- Wide color gamut with quantum dot enhancement
Cons
- SmartCast platform is slow and has limited apps compared to Google TV
- 20W audio is very weak — a soundbar is essential
- Build quality and remote feel budget-oriented
- Vizio software support and updates can be inconsistent
Full Specifications
| Spec | LG OLED B3 65" | Vizio P-Series Quantum 65" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 41.7 lbs | 44.7 lbs |
| Dimensions | 57.0 x 32.8 x 1.8 inches | 56.9 x 32.9 x 3.0 inches |
| Dimensions (w/ stand) | 57.0 x 35.5 x 11.8 inches | 56.9 x 35.3 x 12.0 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 7 | 8 |
| Display | ||
| HDR | Dolby Vision, HDR10, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 65" | 65" |
| Type | OLED (WOLED) | Quantum Color LED (VA LCD, Full Array Local Dimming) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 600 | 1200 |
| Smart TV | ||
| Os | webOS 23 | SmartCast (Chromecast built-in) |
| Voice assistant | LG ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa (via voice remote) |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 2 | 1 |
| HDMI ports | 4 | 4 |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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