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55UP8000
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55R646
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What we think

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The PerfectRec TV team Learn more
Updated January 10, 2024·

The LG UP8000 is a lower midrange-priced TV that is typically much less expensive than the TCL R646, which is an upper midrange-priced TV. The LG’s performance in bright rooms is reasonable, but it may perform poorly in a dark room compared to the TCL. The TCL offers superior overall picture quality and is better for dark room viewing but comes at a higher cost. If gaming is a priority, the TCL has a higher gaming score and supports a higher refresh rate, which is better for fast-paced content. For bright room usage, the TCL also scores higher and has better reflection handling. Both TVs support HDR, but the TCL additionally supports Dolby Vision, HDR10+, and has a higher brightness capability for HDR content, which can make HDR movies and shows look more impressive. If you're on a tighter budget, prefer to spend less, and need a TV that's adequate for a variety of content, the LG UP8000 could be a suitable choice. However, the TCL R646 may be the better option if you're looking for higher performance, particularly for gaming and HDR content, and are willing to pay more for these features. 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 LG UP8000 (LCD)
  • Good for upscaling
  • Good viewing angle
Advantages of the TCL R646 (LCD)
  • Very good for bright room
  • Good for dark room
  • Very good for gaming
  • Good for movies & TV
  • Good for news, talk, & other TV
  • Very good for cartoons & animation
  • Good for use as monitor
  • Very good reflections

Key differences

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Picture Quality

5.7
55UP8000
55R646
7.9
5.10/10
CONTRAST
8.43/10
5.8/10
COLOR VOLUME SCORE
7.6/10
LED
PANEL TYPE
miniLED FALD
IPS
PANEL SUB-TYPE
VA
The TCL R646 (LCD) has good picture quality, while the LG UP8000 (LCD) has poor picture quality.

Movies & TV

5.3
55UP8000
55R646
7.8
5.10/10
CONTRAST
8.43/10
5.5/10
BLACK UNIFORMITY
6.8/10
7.5/10
UPSCALING
5.9/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
Yes
No
DOLBY VISION SUPPORT
Yes
The TCL R646 (LCD) is good for movies & TV, while the LG UP8000 (LCD) is poor.

Gaming

5.7
55UP8000
55R646
8.2
6.7/10
RESPONSE TIME SCORE
8.0/10
10.0/10
INPUT LAG SCORE
7.6/10
6.0/10
MOTION PROCESSING
5.3/10
0.0/100
GAMING LOCAL DIMMING
70.0/100
6.0/10
GAME HDR BRIGHTNESS SCORE
8.7/10
The TCL R646 (LCD) is very good for gaming, while the LG UP8000 (LCD) is poor.

Cartoons & Animation

5.9
55UP8000
55R646
8.4
5.9/10
COLOR GAMUT SCORE
7.6/10
5.8/10
COLOR VOLUME SCORE
7.6/10
6.5/10
SDR BRIGHTNESS SCORE
9.1/10
7.1/10
COLORS OUT OF THE BOX SCORE
7.2/10
6.2/10
GRAY UNIFORMITY
8.0/10
The TCL R646 (LCD) is very good for cartoons & animation, while the LG UP8000 (LCD) is poor.

News, Talk, & Other TV

6.2
55UP8000
55R646
7.5
6.5/10
SDR BRIGHTNESS SCORE
9.1/10
7.5/10
UPSCALING
5.9/10
The TCL R646 (LCD) is good for news, talk, & other TV, while the LG UP8000 (LCD) is only fair.

Bright Room

5.9
55UP8000
55R646
8.9
7.5/10
VIEWING ANGLE
5.3/10
6.5/10
SDR BRIGHTNESS SCORE
9.1/10
5.8/10
HDR BRIGHTNESS SCORE
8.3/10
7.0/10
REFLECTIONS SCORE
8.1/10
The TCL R646 (LCD) is very good for bright room, while the LG UP8000 (LCD) is poor.
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Key similarities

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Sports

6.6
55UP8000
55R646
6.6
6.0/10
MOTION PROCESSING
5.3/10
60Hz
REFRESH RATE
120Hz
10.0/10
INPUT LAG SCORE
7.6/10
7.5/10
UPSCALING
5.9/10
6.5/10
SDR BRIGHTNESS SCORE
9.1/10
Yes
HLG SUPPORT
Yes
The TCL R646 (LCD) and LG UP8000 (LCD) are both only fair for sports.

Cost

$590
55UP8000
55R646
$600
Product imageProduct image

$300

$400

$500

$600

$700

$800

$900

The LG UP8000 (LCD) has a price of $590 and the TCL R646 (LCD) costs $600.

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How the LG UP8000 (LCD) and the TCL R646 (LCD) compare to other TVs

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Spec Comparison

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LG UP8000 (LCD)TCL R646 (LCD)
LG UP8000 (LCD)TCL R646 (LCD)

GENERAL

Price
$590
$600
Brand
LGTCL
Release Date
July 3, 2021August 1, 2021
Full name
55UP800055R646
Screen Size
55"55"
Screen Resolution
4K4K

TV FEATURES

Operating System
webOSAndroid TV
Sound Quality Score
6.7/1010/10
NextGen Ready
NoNo
HDMI Ports
34
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
5.8/107.9/10
Bright Room Score
6/109/10
Gaming Score
5.8/108.2/10
Movies & TV Score
5.4/107.8/10
Sports Score
6.6/106.6/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
28.1" x 48.6" x 2.3"28.5" x 48.3" x 3.6"
Dimensions with Stand (H x W)
30.4" x 48.6"30.9" x 48.3"
Weight without Stand
30.9 lbs42.3 lbs
VESA Mount
300 x 300300 x 300

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
NoYes
Auto Low Latency Mode
YesYes
Contrast
5.1/108.4/10
Local Dimming
2.5/106.5/10

SOUND

Speaker Setup
2.02.0
Speaker Power
20 W30 W
Dolby Atmos
YesYes
DTS:X
NoYes, Bypass only

Shopping

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LG UP8000 (LCD)

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Dig into reviews and images

Home Media Entertainment

Stratos Kampourogiannis | July 2021
"What we liked on this one was the very sharp 4K images it could display, its good up-scaling capabilities, nice viewing angles and extremely low input lag. Lastly the new webOS 6.0 is great even if it needs some time to get your bearings while the redesigned Magic Remote feels fresh even if functionality remains the same."

Get a great deal on the LG UP8000 (LCD) or the TCL R646 (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 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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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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CEO and TVs Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.

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Staff Expert & Software Engineer
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