Vizio P Series Quantum X 2020 TV Review

8.24 Mixed Usages
8 TV Shows:
8.6 HDR Movies:
8.7 HDR Gaming:
7.9 Sports( Considering Day Light)
8 PC Monitor ():
Release year: 2020 Rating: 4.3
Where to buy



Screen Size Variation 65-77 Inches , 77-90 Inches inch
Features: Smart TV , HDR , High Definition , CEC Enabled , Anti-glare , With Energy Saving Mode
Display Type: LED
Screen Design Flat Tv
Connectivity: HDMI , WiFi , USB , Ethernet , Bluetooth , Optical Audio , RF
Number Of HDMI Ports: 5
HDR HDR10 , HDR10+ , Dolby Vision , HLG
Refresh Rate: 120 Hz
Next Gen. Gaming Feature: VRR (Variable Refresh Rate) , ALLM (Auto Low Latency Mode) , eARC
TV Type Indoor
Special Feature: Flat
Supported Internet Services: Netflix, Pandora, Hulu, Amazon Instant Video


Screen Size: 75 inches
Display Type LED
Aspect Ratio 16:9
Screen Resolution (pixels): 3840 x 2160 pixels (4K Ultra HD)
Screen Refresh Rate: 120Hz
Viewing Angle 178 degree
Backlight Type: Full Array LED
Quantum Dot Color: Yes
Video Processing Technology: N/A
HDR (High Dynamic Range): HDR10, HDR10+, HLG, Dolby version


Contrast: Native Contrast 5,078 : 1 Contrast with local dimming 14,345 : 1
Brightness: 800 nits
Local Dimming: Local Dimming with multiple zones
Gray & Black Uniformity: 50% Std. Dev. 2.296% 50% DSE 0.152% & Black Uniformity Native Std. Dev. 0.474% Std. Dev. w/ L.D. 0.546%
Viewing Angle: 178 degree
Reflections: Reflections Screen Finish Semi-gloss Total Reflections 2.3% Indirect Reflections 0.2%
Calibration: White Balance dE 4.46 Color dE 3.56 Gamma 2.08 Color Temperature 5,973 K
Pixels & Motion: Type LED Sub-Type VA
Input Handling (480p and 720p): 480p content looks decent, but it isn't as good as other recent 4k TVs.
Input Handling (1080p): 1080p content is upscaled well, and there are no visible artifacts.
Input Handling (4k): The Vizio P75QX-H1 displays 4k content perfectly. However, spatial dithering is present when using the Enhanced Viewing Angle feature
Color Gamut: Wide Color Gamut Yes DCI P3 xy 94.05% DCI P3 uv 95.13%
Color Volume: : Normalized DCI P3 Coverage ITP 82.7% 10,000 cd/m² DCI P3 Coverage ITP 53.7%
Gradient & Response Time: Color Depth 10 Bit Red (Std. Dev.) 0.099 Green (Std. Dev.) 0.095 & Response time 14.4 ms
Supported Resolutions: 480p, 720p, 1080p, 4K
Interface: SmartCast 5.0


Numbers of HDMI: 5
HDMI Version 2.1
Audio Return Channel 1
Optical Digital Audio Output: 1
Component Video Inputs: 0
Composite Video Inputs: 0
3.5mm Composite A/V Inputs: 0
RF Inputs: 1
USB Ports: 2
Analog Audio/Headphone Output: 1


HDR10: Yes
HDR10+ : Yes
Dolby Vision: Yes
HLG : Yes
HDMI 2.0 : Yes (HDMI 1,2,3,4)
HDMI 2.1 : Yes (HDMI 1,2,3,4)
CEC Enabled: Yes
HDCP 2.2: Yes (HDMI 1,2,3,4)
ATSC Tuner:
USB 3.0 : N/A
Variable Analog Audio Out: Yes
Wi-Fi : Yes (2.4 GHz, 5 GHz)


ARC/eARC Port : eARC
eARC: Dolby Atmos Over Dolby Digital Plus : Yes
eARC: Dolby Digital Plus 7.1 : Yes
eARC: LPCM 7.1 Over Dolby MAT: Yes
eARC: Dolby TrueHD 7.1 : N/A
eARC: DTS:X Over DTS-HD Master Audio: N/A
eARC: DTS-HD Master Audio 7.1: Yes
eARC: LPCM Channels (Bitstream) :
ARC: Dolby Digital 5.1 Yes
ARC: DTS 5.1 Yes
Optical: Dolby Digital 5.1: Yes
Optical: DTS 5.1 : Yes


Built-in Speakers: Downward-firing speakers with DTS Virtual:X
Voice Clarity: Average May struggle at higher volumes or complex dialogue.
Distortion: Weighted THD @ 80 0.093 Weighted THD @ Max 0.552
Frequency Response: Low-Frequency Extension 113.14 Hz
Bass: 0
Soundstage: Narrow
Immersion: Low Not ideal for surround sound experiences.
Dolby Atmos Support: Yes (limited) Supported, but limited by speaker capabilities.
Audio Passthrough: Yes (eARC) Allows high-quality audio formats to be sent to a soundbar or receiver.
Recommendation: Recommended to invest in a soundbar or external speaker system


Cast Capable Yes
USB Drive Playback Yes
USB Drive HDR Playback Yes
HDR in Netflix Yes
HDR in YouTube Yes
Apps Navigation Ease To Use


Operating System SmartCast 5.0
CPU / Processor N/A
Graphic Processor / GPU N/A
Storage N/A
Chromecast Built-in
Alexa Supported


PS5 Compatibility: Yes
Xbox Series X |S Compatibility Yes
Auto Low Latency Mode (ALLM): Yes
Variable Refresh Rate (VRR): Yes
Input Lag: 14.1 ms
HDR: Yes
High Frame Rate (HFR): Up to 120Hz
Additional Features: Game Mode


Voice Control Yes
Universal Remote Support for HDMI Device N/A
Universal Remote Support for non-HDMI Device N/A
Remote App SmartCast Mobile


Dimensions 65.54 x 40.51 x 13.39 inch with Stand
Style The Vizio P Series Quantum X has an excellent design. It's simple and clean, with thin borders and wide-set feet.
Back & Borders: Back Wall Mount VESA 400x400 & Borders 0.35 inch
Thickness: Max Thickness 2.72 inch
Build Quality: t's entirely made out of plastic, but the construction feels sturdy, and there aren't any obvious gaps.
Longevity: N/A
Stand: Footprint of the 75 stand: 57.3 x 13.2 inch
Included Components: Power Cable, Remote Control, Stand


TV Shows: 8
HDR Movies: 8.6
HDR Gaming: 8.7
Sports( Considering Day Light) 7.9
PC Monitor (): 8
Where to buy

Where to buy


Select Two Audio / Video System for Detailed Comparison


Find Your Sound System by Any Desire Specification

similar Product Reviews


Aspect Verdict Data Contrast Ratio     Perfect blacks, stunning HDR punch Near Infinite Black Level Inky blacks, minimal blooming 99.4% Uniformity  Brightness (HDR) Good HDR performance, visible in most rooms Peak Brightness: 830 nits (Evo Panel), 770 nits (OLED Panel) Local Dimming Minimizes blooming around bright objects Excellent     Gray & Black Uniformity Near-perfect grayscale reproduction ΔE 1.4 (Avg.) Viewing Angle Minimal color/brightness shift, ideal for group viewing 178 degrees Max Reflections     Glare resistance good, but bright rooms may pose challenges Low (4.7% Reflectivity)  Calibration     Presets accurate, professional calibration further enhances picture Pre-Calibration dE 3.7, Post-Calibration dE 0.6 Pixels & Motion     Individual pixel control, perfect black/color reproduction, near-instantaneous response time Self-illuminating OLED Input Handling (480p and 720p)  Maintains clarity, some artifacts might be noticeable Good Upscaling Input Handling (1080p) Delivers pristine image quality, ideal for Full HD content Near Perfect Input Handling (4k) Native 4K resolution shines, HDR content pops with vibrancy Outstanding Color Gamut DCI-P3 Coverage: 99.8%, Rec. 2020 Coverage: 83.2% Wide Color Volume P3 Color Volume: 99.2%, Rec. 2020 Color Volume: 71.5% High Gradient & Response Time Gradient Error: 0.2%, Response Time: Near Instantaneous Smooth Input Lag Extremely low input lag, great for gaming 6.1ms (native 4K 60Hz) Supported Resolutions Future-proofed for next-gen gaming and high-resolution content Up to 4K 120Hz
-Read More


Table of Picture Quality Glory: Aspect Verdict Data Image Contrast & Black Level Near Infinite, Perfect Blacks Contrast Ratio: Infinite, Black Level: 0.00 cd/m² perfect black level on LG C1 OLED Brightness (HDR & SDR)Moderate HDR, Good SDRPeak Brightness: 647 nits LG C1 OLED showcasing HDR brightness Local DimmingExcellentBloom Score: 1.8 (lower is better)Gray & Black UniformityExcellentGray Uniformity Avg. dE: 1.5 (lower is better), Black Level Uniformity: 99.9% LG C1 OLED with nearperfect gray uniformity Viewing Angle178 degrees Max, Minimal ShiftColor Shift at 45°: ΔE 2.7, ΔE 7.2 (lower is better)ReflectionsLow, Glare Resistance GoodReflectivity: 4.7% (lower is better) LG C1 OLED reflecting minimal light in a moderately bright room CalibrationExcellentPre-Calibration dE: 3.7, Post-Calibration dE: 0.6 LG C1 OLED calibration settings menu Pixels & MotionSelf-illuminating OLED PerfectionIndividual pixel control, perfect black/color reproduction LG C1 OLED pixel closeup showcasing individual pixel control Input Handling (480p & 720p)Upscaled Well, Good Detail480p Sharpness: 39 (higher is better), 720p Sharpness: 44 (higher is better)Input Handling (1080p)Excellent, Sharp and Detailed1080p Sharpness: 52 (higher is better) LG C1 OLED displaying upscaled 1080p content Input Handling (4k)Stunning, Flawless Native ResolutionNative 4K HDR Contrast Ratio: 1,416,546:1Color Gamut & VolumeWide & VibrantDCI-P3 Coverage: 99.8%, Rec. 2020 Coverage: 76.7%, P3 Color Volume: 99.2%, Rec. 2020 Color Volume: 66.4% LG C1 OLED displaying a color gamut chart Gradient & Response TimeSmooth & InstantaneousGradient Error: 0.2% (lower is better), Response Time: Near Instantaneous, Input Lag: 12.4 ms (lower is better)Supported ResolutionsFuture-ProofedUp to 4K 120Hz LG C1 OLED displaying 4K 120Hz content InterfaceUser-Friendly & App-RichwebOS 6.0 LG C1 OLED webOS 6.0 interface Remember: Brightness limitations might affect daytime viewing in very bright rooms. Professional calibration enhances picture quality, but isn't mandatory for most users. Gaming enthusiasts will love the low input lag and VRR support. This table unlocks the secrets of the LG C1 OLED's picture quality dominance.
-Read More