Ownership and support
4K at 120 Hz support
Samsung U7900FNo score yet
TCL QM5K
1.1
No QM5K size displays 4K at 120Hz; this is a key limitation for high-end console and PC setups.
Dolby Vision support
Samsung U7900FNo score yet
TCL QM5K
4.5
Dolby Vision adds a broadly useful streaming and gaming format option, although it does not overcome the panel's modest HDR brightness.
DTS support
Samsung U7900F
1.0
DTS decoding and passthrough are missing, which is disappointing for some Blu-ray soundtracks.
TCL QM5KNo score yet
HDMI 2.1 support
Samsung U7900F
1.5
The absence of HDMI 2.1 bandwidth keeps modern consoles from their highest-refresh options.
TCL QM5KNo score yet
HDR10+ support
Samsung U7900FNo score yet
TCL QM5K
4.5
HDR10+ broadens compatibility with dynamic-HDR material, a welcome capability at this price.
Other features
AI scene optimization
Samsung U7900FNo score yet
TCL QM5K
4.5
The automatic Intelligent picture mode can produce an appealing image without extensive manual adjustments.
Backlight strobing
Samsung U7900F
1.0
Black-frame insertion suffers from mistimed pulses that create duplicate images instead of clearer motion.
TCL QM5KNo score yet
Built-in subwoofer
Samsung U7900FNo score yet
TCL QM5K
4.0
A rear-mounted subwoofer on certain larger variants is a welcome inclusion, although its presence does not guarantee powerful bass or fine control.
Dialogue clarity
Samsung U7900F
4.0
Speech comes through clearly at normal listening volumes even though the speakers lack deep bass.
TCL QM5KNo score yet
Distortion control
Samsung U7900FNo score yet
TCL QM5K
2.5
The 55- and 65-inch samples showed a slight buzz on bass-heavy music, preventing completely clean playback.
Energy efficiency
Samsung U7900F
4.0
Eco picture mode cuts output and power consumption, at the cost of a dimmer image.
TCL QM5KNo score yet
Gaming dashboard
Samsung U7900F
1.5
Unlike the Q7F comparison model, this TV lacks the quick gaming bar for on-screen controls.
TCL QM5KNo score yet
Image scaling
Samsung U7900F
5.0
The zoom and position controls can expand older low-resolution or non-widescreen clips to fill the display.
TCL QM5KNo score yet
Local dimming zone transitions
Samsung U7900FNo score yet
TCL QM5K
1.9
Backlight zones respond too slowly to moving bright objects and can briefly flicker or trail.
Packaging and unboxing
Samsung U7900F
4.0
The carton protects the fairly light 55-inch television adequately and is manageable for a single person.
TCL QM5KNo score yet
Portability and versatility
Samsung U7900F
4.0
The 55-inch version is light enough for one person to remove from its carton, easing initial handling.
TCL QM5KNo score yet
Remote control quality
Samsung U7900FNo score yet
TCL QM5K
4.1
The remote is straightforward and pleasant to handle, with practical shortcuts and an uncomplicated layout.
Remote layout
Samsung U7900FNo score yet
TCL QM5K
4.2
Backlit, simplified buttons make the remote easier to navigate, particularly in a dark room.
Resolution
Samsung U7900F
4.0
Native 4K material looks noticeably better defined than soft low-resolution streams.
TCL QM5KNo score yet
Speaker quality
Samsung U7900F
3.2
Dialogue and moderate-volume material sound acceptable through the internal speakers. Bass-heavy scenes benefit from external audio.
TCL QM5KNo score yet
Stand quality
Samsung U7900F
2.0
Simple plastic feet are fixed in height and spacing, limiting where the TV or soundbar can sit.
TCL QM5KNo score yet
Controls and connectivity
App performance
Samsung U7900F
2.5
Some streaming app launches and menu transitions are sluggish on the entry-level Tizen hardware.
TCL QM5KNo score yet
Bluetooth audio support
Samsung U7900F
4.0
Pairing wireless headphones or a compatible soundbar is a useful convenience for quiet or flexible listening.
TCL QM5KNo score yet
Menu responsiveness
Samsung U7900FNo score yet
TCL QM5K
3.4
Menus remain manageable despite occasional sluggish reactions; the experience is not consistently instant.
Privacy controls
Samsung U7900FNo score yet
TCL QM5K
2.5
Personalized advertising can be disabled, but that does not remove on-screen ads or all associated tradeoffs.
SmartThings phone remote control
Samsung U7900F
4.3
The SmartThings app makes phone-based setup and navigation practical and can add spoken commands absent from the physical remote.
TCL QM5KNo score yet
Smart TV platform
Samsung U7900F
3.9
Tizen offers plenty of content, apps and connected-device options, but this entry-level version is pared down and can feel sluggish.
TCL QM5KNo score yet
Smart TV platform
Samsung U7900FNo score yet
TCL QM5K
4.4
Google TV is easy to navigate and rich in apps, though its menus may lag and its home screen includes advertising.
Streaming app support
Samsung U7900FNo score yet
TCL QM5K
4.4
A well-stocked Google TV catalog covers mainstream shows, movies, and live-streaming apps without requiring an external box.
Voice control accuracy
Samsung U7900F
4.5
Using Bixby through SmartThings successfully launches requested apps, providing a useful alternative to the basic remote.
TCL QM5KNo score yet
Performance
Audio/video sync
Samsung U7900FNo score yet
TCL QM5K
1.8
Some owners reported severe audio delay through ARC or optical connections, although the issue appears setup-dependent.
Automatic brightness adjustment
Samsung U7900FNo score yet
TCL QM5K
2.8
Dynamic brightness can change picture output unexpectedly; turning it off is suggested for users seeking predictable manual settings.
Optical audio output
Samsung U7900F
1.4
There is no optical digital audio jack, so older sound systems may need an alternative connection or adapter.
TCL QM5KNo score yet
Q-Symphony soundbar integration
Samsung U7900F
3.6
Compatible Samsung soundbars can play alongside the TV speakers, expanding audio flexibility. The feature is not universal across soundbar brands.
TCL QM5KNo score yet
Comfort and build
Bezel size
Samsung U7900F
4.0
Three relatively narrow borders help the U7900F look modern, even though the bottom edge is thicker.
TCL QM5KNo score yet
Size-specific gaming refresh limits
Samsung U7900FNo score yet
TCL QM5K
2.3
The 50-inch model stays at 60Hz at every resolution, whereas 55-inch and larger models can reach 144Hz at 1080p or 1440p.