| Model No |
QN77S90DAFXZC |
QN75Q90RAFXZA |
| TV Type |
Smart TV |
Smart TV |
| Screen Size |
77 Inch (195.58 cm) |
75 Inch (191 cm) |
| Resolution |
4K 3840 x 2160 |
4K 3840 x 2160 |
| Aspect Ratio |
16:9 |
16:9 |
| Motion Rate |
120 Hz |
240 Hz |
| Viewing Angle |
178°/178° |
178°/178° |
| USB |
| USB Version |
: 2.0 |
| Supported Audio Formats |
: MP3, FLAC, OGG, WMA, WAV, MIDI, APE, AIFF, ALAC, M4A, MPA, AAC |
| Supported Video Formats |
: AVI, MKV, MP4, ASF, MOV, 3GP, FLV, VRO, VOB, SVI |
| Supported Picture Formats |
: JPG, JPEG, PNG, BMP, MPO |
|
| USB Version |
: 2.0 |
| Supported Audio Formats |
: MP3, FLAC, OGG, WMA, WAV, MIDI, APE, AIFF, ALAC, M4A, MPA, AAC, SVAF, WEBM, RMVB |
| Supported Video Formats |
: AVI, MKV, MP4, ASF, MOV, 3GP, FLV, VRO, VOB, SVI |
| Supported Picture Formats |
: JPG, JPEG, PNG, BMP, MPO |
|
| Video |
| Backlight |
: 4K UHD OLED |
| Film Mode |
: Yes |
| Anti Reflection |
: Yes |
| Filmmaker Mode |
: Yes |
| Smart Calibration |
: Basic |
| HDR |
: OLED HDR+ |
| AI Upscale |
: 4K AI Upscaling |
| Viewing Angle |
: Ultra Viewing Angle |
| Contrast |
: Self-illuminating Pixels |
| Picture Engine |
: NQ4 AI Gen2 Processor |
| Compatible With HDR 10+ |
: Yes ( Adaptive / Gaming ) |
| Motion Technology |
: Motion Xcelerator 144Hz |
| Colour |
: Perceptional Color Mapping |
|
| Backlight |
: QLED |
| Quantum Dot Color |
: Yes |
| 4K UHD Resolution |
: Yes |
| AI Upscale |
: 4K AI Upscaling |
| HDR |
: Quantum HDR 16X |
| Viewing Angle |
: Ultra Viewing Angle |
| Backlighting |
: Direct Full Array 16X |
| Picture Engine |
: Quantum Processor 4K |
| Color |
: 100% Color Volume with Quantum Dot |
|
| Audio |
| Sound Output ( RMS ) |
: 40 W |
| Dolby Atmos |
: Yes |
| Q-Symphony |
: Yes |
| Bluetooth Audio |
: Yes |
| Active Voice Amplifier |
: Yes |
| Object Tracking Sound |
: OTS Lite |
| Speaker Type |
: 2.1 Channel |
|
| Sound Output ( RMS ) |
: 60 W |
| Dolby® Digital Plus |
: Yes |
| Woofer |
: Yes |
| Multiroom Link |
: Yes |
| Bluetooth Headset Support |
: Yes |
| Speaker Type |
: 4.2 Channel |
|
| Connectivity Options |
| HDMI 2.1 |
: 4 |
| USB-A 2.0 |
: 2 |
| Wi-Fi 5 |
: Yes |
| Bluetooth 5.2 |
: Yes |
| Ethernet / LAN |
: Yes |
| Ex-Link ( RS-232C ) |
: Yes |
| Digital Audio Out ( Optical ) |
: Yes |
| HDMI Audio Return Channel |
: eARC |
| HDMI ( High Frame Rate ) |
: 4K 144Hz ( For HDMI 1 / 2 / 3 / 4 ) |
| RF In ( Terrestrial / Cable Input / Satellite Input ) |
: 1 / 1 ( Common Use For Terrestrial ) / 0 |
|
| HDMI |
: 4 |
| USB |
: 3 |
| Bluetooth 4.2 |
: Yes |
| Ethernet / LAN |
: Yes |
| Digital Audio Out ( Optical ) |
: Yes |
| Audio Return Channel Support ( Via HDMI Port ) |
: Yes |
| Wi-Fi Connectivity ( 802.11ac ) |
: Yes |
| WiFi Direct |
: Yes |
| BT HID Built-In |
: Yes |
| RS232C |
: Yes |
| One Connect Box |
: Yes |
| Terrestrial / RF input |
: 1 / 1 ( Common Use for Terrestrial ) / 0 |
|
| Smart TV Features |
| Operating System |
: Tizen™ Smart TV |
| Bixby |
: Yes |
| Screen Vitals |
: Yes |
| Media Home |
: Yes |
| Ambient Mode+ |
: Yes |
| Universal Guide |
: Yes |
| Samsung Health |
: Yes |
| Samsung TV Plus |
: Yes |
| Far-Field Voice Interaction |
: Yes |
| Smart Things Hub / Matter Hub / IoT-Sensor Funtionality |
: Yes |
| Built-in Voice Assistant |
: Alexa |
| Multi-View |
: Up To 2 Videos |
| Works With AI Speaker |
: Alexa, Google Assistant |
| Multi Device Experience |
: TV To Mobile, Mobile To TV, TV Initiate Mirroring, Sound Mirroring, Wireless TV On, Tap View |
|
| Processor |
: Quad-Core |
| Works With Alexa |
: Yes |
| Works With Google Assistant |
: Yes |
| TV to Mobile - Mirroring |
: Yes |
| Mobile to TV - Mirroring, DLNA |
: Yes |
| Analog Tuner |
: Yes |
| Eco Sensor |
: Yes |
| USB HID Support |
: Yes |
| Digital Clean View |
: Yes |
| Bixby |
: Yes |
| Ultra Black |
: Yes |
| Ambient Mode |
: Yes |
| AI Technology |
: Yes |
| Smart TV |
: Yes |
| DTV Tuner |
: ATSC/ClearQAM |
| Digital Broadcasting |
: ATSC/ClearQAM |
| Smart Hub |
: Yes ( Incl. Sports, Music and TV Plus ) |
| Apps Platform |
: Smart TV with Bixby Voice, Apps and Full Web Browser |
| Game Mode |
: Yes ( Auto Game Mode, Game Motion Plus, Dynamic Black EQ, Game Enhancer ) |
|
| Other Features |
| Design |
: Laser Slim Design |
| Stand Type |
: Simple Plus Blade |
| Front Color |
: Graphite Black |
| Bezel Type |
: 4 Bezel-Less |
| Stand Colour |
: Space Titan |
| HGiG |
: Yes |
| Gaming Hub |
: Yes |
| Analog Tuner |
: Yes |
| ConnectShare™ |
: Yes |
| Mini Map Zoom |
: Yes |
| Surround Sound |
: Yes |
| Dynamic Black EQ |
: Yes |
| Game Motion Plus |
: Yes |
| Auto Game Mode ( ALLM ) |
: Yes |
| Super Ultra Wide Game View |
: Yes |
| Zigbee / Thread Module |
: Built-In |
| Digital Broadcasting |
: ATSC / ClearQAM |
| FreeSync |
: FreeSync Premium |
| Motor Impaired Support |
: Slow Button Repeat, Remote Control App. For All |
| Hearing Impaired Support |
: Closed Caption ( Subtitle ), Multi-Output Audio, Caption Position, Sign Language Zoom, Separate Closed Caption, Sign Language Guide, Auto Caption Position |
| Low Vision Support |
: Audio Subtitles ( AU,KR,UK,US Only ), Magnification, Audio Description, Zoom Menu and Text, High Contrast, SeeColors, Color Inversion, Grayscale, Picture Off |
| Accessibillity - Voice Guide |
: US English, Mexico Spanish, Canada French, Finnish, German, Greek, Hungarian, Italian, Norwegian, Polish, Portugal Portuguese, Romanian, Slovak, Swedish, Czech, Danish, Dutch, Korean |
|
| Design |
: Q - Solid |
| Flat TV |
: Yes |
| Color |
: Carbon Silver |
| Stand Type |
: Bending Plate |
|
| General Details |
| Power Requirements |
: AC 110-120V~ 50/60Hz |
| Power Consumption Max |
: 475 W |
| Power Consumption Typical |
: 135 W |
| Power Consumption Standby |
: 0.5 W |
| Eco Sensor |
: Yes |
| Auto Power Off |
: Yes |
| Auto Power Saving |
: Yes |
| Weight Without Stand |
: 34.8 Kg |
| Weight With Stand |
: 36.6 Kg |
| Weight Of Package Carton |
: 46.8 Kg |
| VESA Wall Mount Compatibility |
: 400 mm X 300 mm |
|
| Power Requirements |
: AC 110-120 V 50/60 Hz |
| Maximum Power Consumption |
: 300 W |
| Typical Power Consumption |
: 140 W |
| Power Consumption Standby |
: 0.4 W |
| Weight Without Stand |
: 42.50 Kg |
| Weight With Stand |
: 52.48 Kg |
| Weight Of Package Carton |
: 67.49 Kg |
|
| Supplied Accessories |
| Solar Cell Remote Control |
: TM2360E |
| Power Cable |
: Yes |
| User Manual |
: Yes |
| Slim Fit Cam Compatible |
: Yes |
| Full Motion Slim Wall Mount Compatible ( Y22 ) |
: Yes |
|
| Remote Control |
: TM1950C |
| Batteries |
: Yes |
| User Manual |
: Yes |
| E-Manual |
: Yes |
| Power Cable |
: Yes |
| Optical Cable |
: Yes |
| No Gap Wall Mount Support (Sold Separately) |
: Yes |
| Vesa Wall Mount Compatibility ( 400 x 400 ) |
: Yes |
|
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Compare Samsung QN77S90DAFXZC with:
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Compare Samsung QN75Q90RAFXZA with:
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Key Differences
There is a difference in screen size (75 Inch (191 cm) vs 77 Inch (195.58 cm)), and a larger screen generally provides a more immersive viewing experience. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Samsung QN75Q90RAFXZA and Samsung QN77S90DAFXZC offer different motion rates (240 Hz vs 120 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Samsung QN75Q90RAFXZA and Samsung QN77S90DAFXZC are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both TVs come with smart platforms that support popular streaming apps and voice control features. Verdict: Both TVs are strong contenders, and your final choice should depend on your preference for screen size, motion performance, and smart features.
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