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What we think
The PerfectRec TV team Learn more
Updated January 10, 2024·
The Sony X77L is less expensive and has better viewing angles, which might make it a good fit for rooms where viewers are spread out. However, it doesn't perform as well in dark environments. If you often watch TV in a well-lit room, the X77L may suit your needs. On the other hand, the Sony X90K, while more costly, provides better overall picture quality, especially in dark rooms, and it has a higher refresh rate which can be great for gaming and watching sports. Additionally, the X90K supports Dolby Vision, potentially delivering better HDR content quality if you have compatible sources. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Sony X77L (LCD)
- Good viewing angle
Advantages of the Sony X90K (LCD)
- Very good for bright room
- Good for dark room
- Very good for gaming
- Good for movies & TV
- Good for sports
- Very good for news, talk, & other TV
- Very good for cartoons & animation
- Good for use as monitor
- Best in class for upscaling
- Best in class motion processing
Key differences
Picture Quality
5.6
7.7
3.58/10
CONTRAST
7.38/10
6.3/10
COLOR VOLUME SCORE
7.8/10
LED
PANEL TYPE
LED FALD
IPS
PANEL SUB-TYPE
TBD
The Sony X90K (LCD) has good picture quality, while the Sony X77L (LCD) has poor picture quality.
Movies & TV
5.2
7.5
3.58/10
CONTRAST
7.38/10
5.8/10
BLACK UNIFORMITY
6.1/10
7.0/10
UPSCALING
10.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
No
No
DOLBY VISION SUPPORT
Yes
The Sony X90K (LCD) is good for movies & TV, while the Sony X77L (LCD) is poor.
The Sony X77L falls short in displaying movies and cinematic TV due to its lower contrast, less effective local dimming, and weaker black uniformity, which are crucial for deep blacks and shadow detail. In contrast, the Sony X90K provides a better cinematic experience with its higher contrast ratio, superior local dimming feature, and better black uniformity, which help to produce more vivid and lifelike images, essential for enjoying movies.
Gaming
5.8
8.1
5.9/10
RESPONSE TIME SCORE
8.0/10
8.7/10
INPUT LAG SCORE
7.0/10
8.5/10
MOTION PROCESSING
10.0/10
5.0/100
GAMING LOCAL DIMMING
76.0/100
6.4/10
GAME HDR BRIGHTNESS SCORE
8.6/10
The Sony X90K (LCD) is very good for gaming, while the Sony X77L (LCD) is poor.
The Sony X77L has a lower response time and input lag making it less suitable for gaming where these factors are crucial for fast-paced action. The Sony X90K, in contrast, has higher scores for both response time and input lag, which helps in delivering a smoother gaming experience with less motion blur and more immediate reaction to inputs.
Cartoons & Animation
6.0
8.0
5.9/10
COLOR GAMUT SCORE
7.7/10
6.3/10
COLOR VOLUME SCORE
7.8/10
7.2/10
SDR BRIGHTNESS SCORE
8.7/10
8.8/10
COLORS OUT OF THE BOX SCORE
7.0/10
7.7/10
GRAY UNIFORMITY
6.6/10
The Sony X90K (LCD) is very good for cartoons & animation, while the Sony X77L (LCD) is only fair.
The Sony X90K is very good for watching cartoons and animation because it has better color gamut and volume, meaning it can display a wider range of colors with more accuracy and intensity, which is crucial for vibrant animated content. In contrast, the Sony X77L is considered fair in this regard due to a poorer color volume and a less impressive color gamut, which might not showcase cartoons and animations as vividly.
News, Talk, & Other TV
6.0
8.7
7.2/10
SDR BRIGHTNESS SCORE
8.7/10
7.0/10
UPSCALING
10.0/10
The Sony X90K (LCD) is very good for news, talk, & other TV, while the Sony X77L (LCD) is only fair.
The Sony X77L is fair for news and TV programs due to lower upscaling quality and SDR brightness, making the picture less crisp and dimmer than ideal. In contrast, the Sony X90K is very good for the same content because its better upscaling and higher SDR brightness enhance picture clarity and ensure it looks bright and vibrant, even in well-lit rooms.
Bright Room
6.0
8.0
7.7/10
VIEWING ANGLE
5.4/10
7.2/10
SDR BRIGHTNESS SCORE
8.7/10
6.2/10
HDR BRIGHTNESS SCORE
8.3/10
6.3/10
REFLECTIONS SCORE
6.3/10
The Sony X90K (LCD) is very good for bright room, while the Sony X77L (LCD) is only fair.
The Sony X90K performs very well in bright rooms due to its higher brightness in both standard and high dynamic range content, alongside its ability to handle reflections effectively. In contrast, the Sony X77L, while providing good standard dynamic range brightness, lags in high dynamic range brightness and is less effective at minimizing reflections, making it just fair for bright room viewing.
Cost
$598
$998
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The Sony X77L (LCD) has a price of $598 and the Sony X90K (LCD) costs $998.
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Key similarities
Sports
6.8
7.1
8.5/10
MOTION PROCESSING
10.0/10
60Hz
REFRESH RATE
120Hz
8.7/10
INPUT LAG SCORE
7.0/10
7.0/10
UPSCALING
10.0/10
7.2/10
SDR BRIGHTNESS SCORE
8.7/10
Yes
HLG SUPPORT
Yes
Although they have very similar scores, PerfectRec considers Sony X90K (LCD) to be good for sports, while the Sony X77L (LCD) is only fair.
The Sony X90K is better for sports viewing because it has superior motion processing and faster response time, which results in clearer images during fast-paced action. Conversely, the Sony X77L has weaker motion processing and slower response time, leading to more motion blur and less crisp sports scenes.
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How the Sony X77L (LCD) and the Sony X90K (LCD) compare to other TVs
Spec Comparison
 |  | |
| Sony X77L (LCD) | Sony X90K (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$598 | $998 | ||
Brand | |||
Brand | Sony | Sony | |
Release Date | |||
Release Date | July 4, 2023 | May 2, 2022 | |
Full name | |||
Full name | KD-65X77L | XR-65X90K | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Google TV | Android TV | |
Sound Quality Score | |||
Sound Quality Score | 6.1/10 | 8/10 | |
NextGen Ready | |||
NextGen Ready | No | Yes | |
HDMI Ports | |||
HDMI Ports | 3 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 5.6/10 | 7.7/10 | |
Bright Room Score | |||
Bright Room Score | 6/10 | 8/10 | |
Gaming Score | |||
Gaming Score | 5.8/10 | 8.1/10 | |
Movies & TV Score | |||
Movies & TV Score | 5.2/10 | 7.5/10 | |
Sports Score | |||
Sports Score | 6.9/10 | 7.2/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 33.3" x 57.6" x 2.9" | 32.8" x 57.2" x 2.8" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 36" x 57.6" | 34" x 57.2" | |
Weight without Stand | |||
Weight without Stand | 45 lbs | 50.5 lbs | |
VESA Mount | |||
VESA Mount | 300 x 300 | 300 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 | 3.6/10 | 7.4/10 | |
Local Dimming | |||
Local Dimming | 3/10 | 7.2/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.0 | 2.0 | |
Speaker Power | |||
Speaker Power | 20 W | 30 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | Up to DTS Digital Surround, Bypass only | Up to DTS Digital Surround, Bypass only | |
Shopping
Sony X77L (LCD)
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HDTVs and more
Milton Clark | September 2023
"For an entry-level model, Sony’s X77L is a decent 4K TV. It’s color reproduction, along with crisp and clean picture images revealed plenty of detail and clarity thanks in part to Sony’s excellent video processing."
Sony X90K (LCD)
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Techradar
Al Griffin | December 2022
"As Sony’s next-to-flagship LCD TV, the X90K series delivers impressive performance for the price. The XR90K had fairly accurate out-of-box color. The TV’s multi-position stand lets you either set the screen flush with any stand its mounted on or elevate it to clear space for a soundbar. With the latter option, you get around 3 inches of clearance enough to accommodate most soundbars. The X90K’s excellent suite of gaming features ranks it up there with the best 120 Hz 4K TVs."
Get a great deal on the Sony X77L (LCD) or the Sony X90K (LCD)
About Sony
Sony stands as a highly experienced and widely trusted TV manufacturer, earning a reputation that surpasses all others. A Japanese company, Sony has been making TVs for far longs than it has been making Playstation game consoles. Sony's high-end TVs are often regarded as the ultimate choice for videophiles, representing the epitome of quality, albeit at a premium price point. Renowned for their advanced and precise motion handling, as well as their cutting-edge local dimming algorithms, Sony consistently delivers unparalleled performance in these areas. They include Google TV software with all their TV sets, which grants access to the largest selection of apps available and they also include Bravia Core which is a movie streaming platform specifically for Sony TVs that offers higher picture quality by using more bandwidth.
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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.
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