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Updated January 10, 2024·
The TCL QM8 is often significantly less expensive and offers better overall picture quality, making it well-suited for movies and streaming content. However, it may not perform as well in very bright rooms. If you prioritize overall picture quality and cost savings, the QM8 may be the better option for you. On the other hand, the TCL R648 is more expensive and delivers excellent sound quality with its great speakers, making it a good choice if you value audio performance. It also supports a higher resolution of 8k compared to the QM8's 4k. If you are willing to invest more for better sound and future-proofing with 8k resolution, consider the R648. 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 movies & TV
Advantages of the TCL R648 (LCD)
- Good for news, talk, & other TV
Key differences
Picture Quality
8.5
7.7
8.00/10
CONTRAST
7.00/10
9.2/10
COLOR VOLUME SCORE
7.6/10
miniLED FALD
PANEL TYPE
miniLED FALD
VA
PANEL SUB-TYPE
VA
The TCL QM8 (LCD) has very good picture quality, while the TCL R648 (LCD) has good picture quality.
Movies & TV
8.3
7.6
8.00/10
CONTRAST
7.00/10
8.5/10
BLACK UNIFORMITY
6.5/10
4.8/10
UPSCALING
5.9/10
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 R648 (LCD) is good.
The TCL QM8 provides excellent contrast, superior local dimming, and better black uniformity, which makes it very good for watching movies and cinematic TV, featuring deep blacks and stark contrasts necessary for a richer viewing experience. Meanwhile, while the TCL R648 also offers good local dimming and contrast, it falls short in black uniformity compared to the QM8, making it less ideal but still sufficient for those immersive movie sessions.
News, Talk, & Other TV
6.8
7.5
10.0/10
SDR BRIGHTNESS SCORE
9.0/10
4.8/10
UPSCALING
5.9/10
The TCL R648 (LCD) is good for news, talk, & other TV, while the TCL QM8 (LCD) is only fair.
The TCL R648 excels in upscaling content and provides brighter SDR quality, both very important for watching news and TV programs, enhancing clarity and visibility especially in brightly lit rooms. In contrast, the TCL QM8, while still performing well with a fair upscaling capability, does not match the brightness levels of the R648, which could result in slightly less vivid images under similar conditions.
Bright Room
9.9
8.1
5.3/10
VIEWING ANGLE
5.2/10
10.0/10
SDR BRIGHTNESS SCORE
9.0/10
9.3/10
HDR BRIGHTNESS SCORE
7.9/10
8.9/10
REFLECTIONS SCORE
8.0/10
The TCL QM8 (LCD) is best in class for bright room, while the TCL R648 (LCD) is very good.
The TCL QM8 outshines the R648 in SDR and HDR brightness while handling reflections similarly well, making it more suitable for bright rooms. While both models have similar performance in terms of contrast and color, the QM8's higher brightness may provide a more vibrant picture in well-lit environments.
Cost
$1,498
$2,000
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The TCL QM8 (LCD) has a price of $1,498 and the TCL R648 (LCD) costs $2,000.
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Key similarities
Sports
6.5
6.5
4.6/10
MOTION PROCESSING
5.3/10
120Hz
REFRESH RATE
120Hz
7.6/10
INPUT LAG SCORE
7.6/10
4.8/10
UPSCALING
5.9/10
10.0/10
SDR BRIGHTNESS SCORE
9.0/10
Yes
HLG SUPPORT
Yes
The TCL R648 (LCD) and TCL QM8 (LCD) are both only fair for sports.
Both the TCL QM8 and TCL R648 have response times and motion processing that are adequate for sports, but not excellent; this could lead to some blur during fast-paced games. The QM8 offers a slightly better reflections handling which is helpful in well-lit rooms, but both have limited viewing angles that could reduce picture quality when watching from the side; the QM8 has a slight edge in gray uniformity, important for displaying sports fields without uneven shades.
Gaming
8.3
8.2
8.1/10
RESPONSE TIME SCORE
8.2/10
7.6/10
INPUT LAG SCORE
7.6/10
4.6/10
MOTION PROCESSING
5.3/10
90.0/100
GAMING LOCAL DIMMING
70.0/100
9.3/10
GAME HDR BRIGHTNESS SCORE
8.3/10
The TCL QM8 (LCD) and TCL R648 (LCD) are both very good for gaming.
Cartoons & Animation
8.9
8.6
8.1/10
COLOR GAMUT SCORE
7.8/10
9.2/10
COLOR VOLUME SCORE
7.6/10
10.0/10
SDR BRIGHTNESS SCORE
9.0/10
7.6/10
COLORS OUT OF THE BOX SCORE
9.0/10
7.5/10
GRAY UNIFORMITY
7.0/10
The TCL QM8 (LCD) and TCL R648 (LCD) are both very good for cartoons & animation.
The TCL QM8 is praised for cartoons & animation due to its very good color gamut, ensuring a wide range of vibrant hues, while its colors out of the box are rated as good, indicating minimal need for calibration. In contrast, the TCL R648, while rated excellent for colors out of the box, offering an immediate optimized color experience, has a slightly lesser color gamut, which means it might not display as wide a range of colors as the QM8.
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How the TCL QM8 (LCD) and the TCL R648 (LCD) compare to other TVs
Spec Comparison
 |  | |
| TCL QM8 (LCD) | TCL R648 (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,498 | $2,000 | ||
Brand | |||
Brand | TCL | TCL | |
Release Date | |||
Release Date | May 1, 2023 | May 1, 2021 | |
Full name | |||
Full name | 65QM850G | 65R648 | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 8K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Google TV | Roku TV | |
Sound Quality Score | |||
Sound Quality Score | 7/10 | 8/10 | |
NextGen Ready | |||
NextGen Ready | No | No | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 8.6/10 | 7.8/10 | |
Bright Room Score | |||
Bright Room Score | 9.9/10 | 8.2/10 | |
Gaming Score | |||
Gaming Score | 8.4/10 | 8.3/10 | |
Movies & TV Score | |||
Movies & TV Score | 8.3/10 | 7.7/10 | |
Sports Score | |||
Sports Score | 6.6/10 | 6.6/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 32.6" x 56.9" x 1.7" | 32.7" x 57" x 3" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 34.1" x 56.9" | 35.1" x 57" | |
Weight without Stand | |||
Weight without Stand | 50.1 lbs | 70.1 lbs | |
VESA Mount | |||
VESA Mount | 300 x 400 | 400 x 400 | |
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 | 8/10 | 7/10 | |
Local Dimming | |||
Local Dimming | 8/10 | 6.5/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.1 | 2.1 | |
Speaker Power | |||
Speaker Power | 40 W | 50 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | Yes, Bypass only | Yes, Bypass only | |
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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.
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