A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
Advantages of the LG B4 (OLED)
- Excellent for dark room
- Excellent for movies & TV
- Very good for sports
- Best in class viewing angle
Advantages of the Samsung QN90A (LCD)
- Best in class for bright room
- Very good for upscaling
Key differences
Picture Quality
8.8
8.1
10/10
CONTRAST
7.00/10
8.1/10
COLOR VOLUME SCORE
8.2/10
WOLED
PANEL TYPE
miniLED FALD
WBC
PANEL SUB-TYPE
VA
The LG B4 (OLED) and Samsung QN90A (LCD) both have very good picture quality, though the LG B4 (OLED) has somewhat better picture quality.
Movies & TV
9.2
8.0
10/10
CONTRAST
7.00/10
10.0/10
BLACK UNIFORMITY
7.0/10
7.0/10
UPSCALING
8.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
Yes
Yes
DOLBY VISION SUPPORT
No
The LG B4 (OLED) is excellent for movies & TV, while the Samsung QN90A (LCD) is very good.
Sports
8.3
7.0
8.0/10
MOTION PROCESSING
8.0/10
120Hz
REFRESH RATE
120Hz
10.0/10
INPUT LAG SCORE
10.0/10
7.0/10
UPSCALING
8.0/10
7.1/10
SDR BRIGHTNESS SCORE
9.4/10
Yes
HLG SUPPORT
Yes
The LG B4 (OLED) is very good for sports, while the Samsung QN90A (LCD) is good.
Gaming
8.9
8.3
9.4/10
RESPONSE TIME SCORE
8.3/10
10.0/10
INPUT LAG SCORE
10.0/10
8.0/10
MOTION PROCESSING
8.0/10
100.0/100
GAMING LOCAL DIMMING
70.0/100
7.5/10
GAME HDR BRIGHTNESS SCORE
9.3/10
The LG B4 (OLED) and Samsung QN90A (LCD) are both very good for gaming, though the LG B4 (OLED) is somewhat better.
News, Talk, & Other TV
8.3
8.9
7.1/10
SDR BRIGHTNESS SCORE
9.4/10
7.0/10
UPSCALING
8.0/10
The Samsung QN90A (LCD) and LG B4 (OLED) are both very good for news, talk, & other TV, though the Samsung QN90A (LCD) is somewhat better.
Bright Room
7.3
9.7
9.5/10
VIEWING ANGLE
6.5/10
7.1/10
SDR BRIGHTNESS SCORE
9.4/10
7.2/10
HDR BRIGHTNESS SCORE
9.3/10
9.2/10
REFLECTIONS SCORE
9.0/10
The Samsung QN90A (LCD) is best in class for bright room, while the LG B4 (OLED) is good.
Cost
$1,300
$1,470
$500
$1,000
$1,500
$2,000
$2,500
The LG B4 (OLED) has a price of $1,300 and the Samsung QN90A (LCD) costs $1,470.
Let Us Help Find Your Perfect TV
Find your new TV
Key similarities
Cartoons & Animation
8.7
8.8
8.3/10
COLOR GAMUT SCORE
7.8/10
8.1/10
COLOR VOLUME SCORE
8.2/10
7.1/10
SDR BRIGHTNESS SCORE
9.4/10
8.5/10
COLORS OUT OF THE BOX SCORE
9.5/10
9.5/10
GRAY UNIFORMITY
6.4/10
The Samsung QN90A (LCD) and LG B4 (OLED) are both very good for cartoons & animation.
Give feedback
We’re constantly working to improve.
How the LG B4 (OLED) and the Samsung QN90A (LCD) compare to other TVs
Spec Comparison
 |  | |
| LG B4 (OLED) | Samsung QN90A (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,300 | $1,470 | ||
Brand | |||
Brand | LG | Samsung | |
Release Date | |||
Release Date | March 1, 2024 | February 4, 2021 | |
Full name | |||
Full name | OLED65B4 | QN65QN90A | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | WebOS | Tizen | |
Sound Quality Score | |||
Sound Quality Score | 7/10 | 8.3/10 | |
NextGen Ready | |||
NextGen Ready | No | Yes | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 8.9/10 | 8.2/10 | |
Bright Room Score | |||
Bright Room Score | 7.4/10 | 9.8/10 | |
Gaming Score | |||
Gaming Score | 9/10 | 8.4/10 | |
Movies & TV Score | |||
Movies & TV Score | 9.3/10 | 8.1/10 | |
Sports Score | |||
Sports Score | 8.3/10 | 7/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 57.0" x 32.8" x 1.8" | 32.6" x 56.9" x 1" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 57.0" x 35.3" x 9.3" | 35.2" x 56.9" | |
Weight without Stand | |||
Weight without Stand | 37.7 lbs | 53.8 lbs | |
VESA Mount | |||
VESA Mount | 300 x 200 | 400 x 300 | |
DISPLAY | |||
|---|---|---|---|
Color Depth | |||
Color Depth | 10 bit | 10 bit | |
Black Frame Insertion | |||
Black Frame Insertion | Yes | Yes | |
Auto Low Latency Mode | |||
Auto Low Latency Mode | Yes | Yes | |
Contrast | |||
Contrast | 10/10 | 7/10 | |
Local Dimming | |||
Local Dimming | 10/10 | 8/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.0 | 4.2.2 | |
Speaker Power | |||
Speaker Power | 20 W | 60 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Bypass only | |
DTS:X | |||
DTS:X | Yes | No | |
Get a great deal on the LG B4 (OLED) or the Samsung QN90A (LCD)
About LG
LG, a prominent TV brand from Korea, has played a significant role in popularizing OLED TVs. OLED technology is hailed as the future of TV technology. Their TVs employ WebOS, a proprietary smart TV software that not only offers seamless functionality but also includes gaming-specific features, earning praise from players worldwide. Often regarded as the gateway to unparalleled viewing experiences, LG's mid-range OLEDs come highly recommended, making them a worthwhile investment for those willing to stretch their budget for superior quality.
About Samsung
Samsung, a South Korean electronics manufacturer, holds the title of being the largest global TV vendor in terms of units sold. They offer a diverse lineup of TV products that cater to various budget ranges. A notable achievement in recent years is the development of Quantum Dots, a technology that enhances color reproduction, resulting in richer and more vibrant hues. Samsung TVs are well-regarded for their high manufacturing quality and user-friendly software, making them an excellent choice for consumers seeking an intuitive viewing experience.
Give feedback
We're constantly perfecting our model
TV guides you might be interested in
More comparisons for you
FAQs
FAQs about TVs
Why trust us
This information was produced and vetted by the PerfectRec TVs team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest TV information and makes it digestible for you.
By the numbers
385
TVs evaluated
33,110
TVs stats compiled
21
Proprietary TVs ratings developed
120,330
Recommendations made
18,050
Consumer hours saved
About the TV team
Joe Golden, Ph.D
CEO and TVs Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Jaime Roldán
TVs Expert
Jaime is a Colombia-based TV expert. He is an electronics engineer with 8 years of experience in the telecom sector and has been making TV recommendations for 12 years.
Featured in
