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
What we think
The PerfectRec TV team Learn more
Updated January 10, 2024·
The TCL QM8 offers superior overall picture quality, making it a more suitable option if you prioritize image performance for movies, series, or gaming. It's especially better in bright rooms and has great black uniformity for dark room viewing. The QM8 also supports advanced gaming features and higher-quality motion processing, which could benefit fast-paced content like sports. However, it comes at an upper midrange price, meaning it's more expensive. On the other hand, the TCL S450G is a budget-friendly choice that performs decently across various types of content. Dark room performance and picture quality aren't as strong as the QM8. It's suitable for casual viewing and has lower sound quality but can still work well for general use. Its price is significantly lower, so it's a cost-effective option if the budget is a key consideration. 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 TCL QM8 (LCD)
- Best in class for bright room
- Very good for dark room
- Very good for gaming
- Very good for movies & TV
- Very good for cartoons & animation
- Good for use as monitor
- Very good reflections
Advantages of the TCL S450G (LCD)
- The TCL S450G (LCD) has no clear advantages over the TCL QM8 (LCD).
Key differences
Picture Quality
8.5
5.9
8.00/10
CONTRAST
5.64/10
9.2/10
COLOR VOLUME SCORE
6.2/10
miniLED FALD
PANEL TYPE
LED
VA
PANEL SUB-TYPE
VA
The TCL QM8 (LCD) has very good picture quality, while the TCL S450G (LCD) has poor picture quality.
Movies & TV
8.3
5.6
8.00/10
CONTRAST
5.64/10
8.5/10
BLACK UNIFORMITY
6.1/10
4.8/10
UPSCALING
6.0/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
No
Yes
DOLBY VISION SUPPORT
Yes
The TCL QM8 (LCD) is very good for movies & TV, while the TCL S450G (LCD) is poor.
Gaming
8.3
5.6
8.1/10
RESPONSE TIME SCORE
5.7/10
7.6/10
INPUT LAG SCORE
10.0/10
4.6/10
MOTION PROCESSING
4.6/10
90.0/100
GAMING LOCAL DIMMING
18.0/100
9.3/10
GAME HDR BRIGHTNESS SCORE
5.7/10
The TCL QM8 (LCD) is very good for gaming, while the TCL S450G (LCD) is poor.
The TCL QM8 has a higher response time and a higher refresh rate, which reduces motion blur and makes fast-moving content look smoother, important for a responsive gaming experience. In contrast, the TCL S450G, with its lower response time and standard refresh rate, will not keep up with fast-paced games and may show more motion blur, affecting gameplay.
Cartoons & Animation
8.9
5.8
8.1/10
COLOR GAMUT SCORE
5.9/10
9.2/10
COLOR VOLUME SCORE
6.2/10
10.0/10
SDR BRIGHTNESS SCORE
5.5/10
7.6/10
COLORS OUT OF THE BOX SCORE
6.2/10
7.5/10
GRAY UNIFORMITY
6.6/10
The TCL QM8 (LCD) is very good for cartoons & animation, while the TCL S450G (LCD) is poor.
The TCL QM8 is very good for watching cartoons and animation because it has good colors right out of the box and an excellent color gamut, ensuring vibrant and varied colors. In contrast, the TCL S450G is considered poor for the same content due to its fair performance in colors out of the box and its fair color gamut, which may result in less vivid and diverse colors.
News, Talk, & Other TV
6.8
5.6
10.0/10
SDR BRIGHTNESS SCORE
5.5/10
4.8/10
UPSCALING
6.0/10
The TCL QM8 (LCD) is only fair for news, talk, & other TV, while the TCL S450G (LCD) is poor.
The TCL QM8 stands out with its superior SDR brightness and good color accuracy out of the box, which is beneficial for watching news and TV programs in brighter rooms, while the TCL S450G has a lower SDR brightness making it less suitable for bright conditions, and its color accuracy out of the box is rated lower, which means the colors may not appear as vibrant or true to life.
Bright Room
9.9
5.7
5.3/10
VIEWING ANGLE
5.0/10
10.0/10
SDR BRIGHTNESS SCORE
5.5/10
9.3/10
HDR BRIGHTNESS SCORE
5.5/10
8.9/10
REFLECTIONS SCORE
6.6/10
The TCL QM8 (LCD) is best in class for bright room, while the TCL S450G (LCD) is poor.
The TCL QM8 is superior for bright room viewing because it has the highest scores for SDR and HDR brightness, complemented by very good reflection handling, essential for maintaining picture quality in well-lit environments. In contrast, the TCL S450G performs poorly in bright rooms due to its low SDR and HDR brightness scores and only fair reflection handling, making it less suitable for such settings.
Cost
$1,304
$748
$0
$500
$1,000
$1,500
$2,000
The TCL QM8 (LCD) has a price of $1,304 and the TCL S450G (LCD) costs $748.
Let Us Help Find Your Perfect TV
Find your new TV
Key similarities
Sports
6.5
6.1
4.6/10
MOTION PROCESSING
4.6/10
120Hz
REFRESH RATE
60Hz
7.6/10
INPUT LAG SCORE
10.0/10
4.8/10
UPSCALING
6.0/10
10.0/10
SDR BRIGHTNESS SCORE
5.5/10
Yes
HLG SUPPORT
Yes
The TCL QM8 (LCD) and TCL S450G (LCD) are both only fair for sports.
The TCL QM8 has a very good response time, which is crucial for watching fast-moving sports, but its reflections handling is only fair, potentially affecting visibility in brightly lit environments. In contrast, the TCL S450G has a poor response time, which may lead to motion blur during sports, and it also has fair reflections handling, sharing the same potential visibility issue in bright rooms.
Give feedback
We’re constantly working to improve.
How the TCL QM8 (LCD) and the TCL S450G (LCD) compare to other TVs
Spec Comparison
 |  | |
| TCL QM8 (LCD) | TCL S450G (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,304 | $748 | ||
Brand | |||
Brand | TCL | TCL | |
Release Date | |||
Release Date | May 3, 2023 | July 1, 2023 | |
Full name | |||
Full name | 85QM850G | 85S450G | |
Screen Size | |||
Screen Size | 85" | 85" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Google TV | Google TV | |
Sound Quality Score | |||
Sound Quality Score | 7/10 | 6.3/10 | |
NextGen Ready | |||
NextGen Ready | No | No | |
HDMI Ports | |||
HDMI Ports | 4 | 3 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 8.6/10 | 6/10 | |
Bright Room Score | |||
Bright Room Score | 9.9/10 | 5.8/10 | |
Gaming Score | |||
Gaming Score | 8.4/10 | 5.7/10 | |
Movies & TV Score | |||
Movies & TV Score | 8.3/10 | 5.7/10 | |
Sports Score | |||
Sports Score | 6.6/10 | 6.2/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 43" x 74.6" x 2.1" | 42.8" x 74.4" x 3.7" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 45.6" x 74.6" | 45.9" x 74.4" | |
Weight without Stand | |||
Weight without Stand | 105.6 lbs | 63.9 lbs | |
VESA Mount | |||
VESA Mount | 600 x 600 | 600 x 600 | |
DISPLAY | |||
|---|---|---|---|
Color Depth | |||
Color Depth | 10 bit | 10 bit | |
Black Frame Insertion | |||
Black Frame Insertion | Yes | No | |
Auto Low Latency Mode | |||
Auto Low Latency Mode | Yes | Yes | |
Contrast | |||
Contrast | 8/10 | 5.6/10 | |
Local Dimming | |||
Local Dimming | 8/10 | 3.5/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.1 | 2.0 | |
Speaker Power | |||
Speaker Power | 40 W | 30 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | Yes, Bypass only | Yes, Bypass only | |
Shopping
TCL S450G (LCD)
See more
Dig into reviews and images
9 to 5 Google
Ben Schoon | September 2023
"TCL, though, has built much of its success on affordable sets, and the 2023 TCL S Class S4 with Google TV is a testament to just how good of a TV you can get for an affordable price tag"
Get a great deal on the TCL QM8 (LCD) or the TCL S450G (LCD)
About TCL
TCL, the highly recognizable TV brand from China, has firmly established itself as the second-largest manufacturer in terms of sales volume. Renowned for striking an impressive balance between affordability, picture quality, and design, TCL TVs deliver a compelling overall package. While they have traditionally excelled in the low-end and midrange TV segments, TCL has recently made remarkable strides in the realm of high-end televisions, introducing impressive models that rival top competitors. Most TCL TVs use Roku software which is very user friendly and easy to use, but they have a few other models that use Google TV which has the largest app selection, but is not as user friendly as Roku.
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
129,630
Recommendations made
19,445
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
