Comparison between:
- 74.5" TCL 75C655
- 74.5" TCL 75C645
Brand, series, model
Information about the brand, series, model and model aliases.
| TCL 75C655 | TCL 75C645 | |
| Series | C655 / T7B | C645 |
![]() | ![]() | |
| Model alias | 75C655X1 75C69B 75C61B 75T7B 75QLED780 | 75C645X1 75QLED770 |
| Model year | 2024 | 2023 |
Display
Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.
| Size class | 74.5 in | 74.5 in |
| Diagonal | 1893 mm 189.3 cm 74.5276 in 6.2106 ft | 1893 mm 189.3 cm 74.5276 in 6.2106 ft |
| Width | 1588.74 mm 158.874 cm 62.5488 in 5.2124 ft | 1580.44 mm 158.044 cm 62.222 in 5.1852 ft |
| Height | 878.46 mm 87.846 cm 34.585 in 2.8821 ft | 866.46 mm 86.646 cm 34.1126 in 2.8427 ft |
| Panel manufacturer | CSOT | - |
| Panel type | SVA | IPS |
| Panel bit depth | 8 bits (6 bits + FRC) | 8 bits |
| FRC | Yes | No |
| Colors | 16777216 colors 24 bits | 16777216 colors 24 bits |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p | 3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p |
| Pixel pitch | 0.275 mm 0.0275 cm 0.0108 in 0.0009 ft | 0.272 mm 0.0272 cm 0.0107 in 0.0009 ft |
| Pixel density | 61 ppi 24 ppcm | 61 ppi 24 ppcm |
| Display area | 88.82 % | 79.58 % |
| Backlight | Direct LED | Direct LED |
| DCI P3 | 80 % | 76 % |
| Brightness | 550 cd/m² | 600 cd/m² |
| Static contrast | 7000 : 1 | 6500 : 1 |
| HDR | HLG (Hybrid Log Gamma) | - |
| Horizontal viewing angle | 178 ° | 178 ° |
| Vertical viewing angle | 178 ° | 178 ° |
| Coating | Anti-glare/Matte | - |
3D
3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.
| 3D | No | No |
Frequencies
Information about the horizontal and vertical refresh rates/frequencies.
| Vertical frequency (digital) | 50 Hz / 60 Hz | 50 Hz / 60 Hz |
Frame interpolation
Many smart TV sets use a technology for interpolating (inserting) of intermediate frames between existing ones in order to achieve more fluent visualization, especially for dynamic scenes.
| Interpolation technology | Motion Rate | - |
| Interpolation value | 3600 | - |
| Interpolation measurement unit | MRT | - |
Power supply and consumption
Information about the power supply and consumption, energy efficiency class, etc.
| 110V | 100 V - 120 V | 100 V - 120 V |
| 220V | 220 V - 240 V | 220 V - 240 V |
| Alternating current frequency | 50 Hz - 60 Hz | 50 Hz - 60 Hz |
| Power consumption (sleep) | 0.5 W | 0.5 W |
| Power consumption (average) | 145 W | 153 W |
| Power consumption (maximum) | 226 W | 299 W |
| Energy efficiency class | F | G |
Dimensions, weight and color
Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.
| Width | 1718.3 mm 171.83 cm 67.6496 in 5.6375 ft | 1730.5 mm 173.05 cm 68.1299 in 5.6775 ft |
| Height | 914.5 mm 91.45 cm 36.0039 in 3.0003 ft | 994.4 mm 99.44 cm 39.1496 in 3.2625 ft |
| Depth | 106.5 mm 10.65 cm 4.1929 in 0.3494 ft | 114.9 mm 11.49 cm 4.5236 in 0.377 ft |
| Weight | 30.8 kg 67.9 lbs | 26.6 kg 58.64 lbs |
| Width with stand | 1626.5 mm 162.65 cm 64.0354 in 5.3363 ft | 1629.6 mm 162.96 cm 64.1575 in 5.3465 ft |
| Height with stand | 991.5 mm 99.15 cm 39.0354 in 3.253 ft | 982.2 mm 98.22 cm 38.6693 in 3.2224 ft |
| Depth with stand | 321.6 mm 32.16 cm 12.6614 in 1.0551 ft | 306.2 mm 30.62 cm 12.0551 in 1.0046 ft |
| Weight with stand | 33.8 kg 74.52 lbs | 28.5 kg 62.83 lbs |
| Box width | 1850 mm 185 cm 72.8346 in 6.0696 ft | 1855 mm 185.5 cm 73.0315 in 6.086 ft |
| Box height | 1125 mm 112.5 cm 44.2913 in 3.6909 ft | 1120 mm 112 cm 44.0945 in 3.6745 ft |
| Box depth | 178 mm 17.8 cm 7.0079 in 0.584 ft | 190 mm 19 cm 7.4803 in 0.6234 ft |
| Box weight | 39.9 kg 87.96 lbs | 34.1 kg 75.18 lbs |
| Stand width | 1316 mm 131.6 cm 51.811 in 4.3176 ft | 1440 mm 144 cm 56.6929 in 4.7244 ft |
| Stand depth | 343 mm 34.3 cm 13.5039 in 1.1253 ft | 335 mm 33.5 cm 13.189 in 1.0991 ft |
| Colors | Black | Brushed Titanium |
Ergonomics
Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.
| VESA mount | Yes | Yes |
| VESA interface | 300 x 250 mm | 300 x 200 mm |
| Removable stand | Yes | Yes |
| Height adjustment | No | No |
| Landscape/portrait pivot | No | No |
| Left/right swivel | No | No |
| Forward/backward tilt | No | No |
| Stand with sticks Adjustable stand width | Stand width - 740 - 1440 mm |
TV tuner
The TV tuner is a device, which allows the receiving and visualization of a certain type of television signal. There are tuners for digital, analog, cable and satellite television.
| TV tuner | Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2 | Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2 |
System on Chip (SoC)
Information about the central processor, graphic processor and the memory of the model.
| Processor brand name | AIPQ with AI | AiPQ 3.0 Engine |
| SoC | TC8000 Platform | RT51M Platform (Realtek RTD2880) |
| Processor (CPU) | 4x ARM Cortex-A55 | - |
| CPU cores | 4 | 4 |
| CPU frequency | 1500 MHz | - |
| GPU | ARM Mali-G57 MC1 | - |
| GPU cores | 1 | - |
| GPU frequency | 800 MHz | - |
| RAM capacity | 2 GB | - |
| Storage | 32 GB | - |
OS, apps and software features
Information about the operating system, applications, various software features if available.
| Operating system (OS) | Google TV | Google TV (Android 11) |
Audio
Information about the audio system - number and power of the built-in speakers, supported audio technologies.
| Speakers | 2 x 27 W | 2 x 23 W |
| Subwoofer | 1 x 20 W | - |
| 2.1 CH 50 W Bluetooth Personal Audio Dolby Atmos Dolby Digital+ DTS Virtual:X Onkyo Sound System | 2.0 CH Down firing Dolby Atmos DTS-HD DTS Virtual: X |
Camera
Many contemporary desktop monitors and smart TV sets have built-in cameras.
| Camera | No | No |
Network
Supported network technologies and standards for exchanging data with other devices.
| Network | LAN Wi-Fi 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Wi-Fi Direct DLNA Bluetooth 5.0 | LAN Wi-Fi 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Wi-Fi Direct DLNA Bluetooth 5.0 |
Connectivity
Available connectivity ports, slots and interfaces.
| Connectivity | 1 x USB 3.0 (Type-A; downstream) 3 x HDMI 2.0 1 x Satellite In (F-type female) 1 x AV Composite In 3.5 mm jack 1 x Optical Audio Out 1 x Antenna (RF) (female) 1 x CI+ 1.4 | 1 x Ethernet RJ45 1 x Satellite In (F-type female) 1 x AV Composite In 3.5 mm jack 1 x Optical Audio Out 1 x 3.5 mm Audio Out 1 x Antenna (RF) (female) 1 x CI+ 1.4 |
| Auto Low Latency Mode (ALLM) Enhanced Audio Return Channel (eARC) HDMI CEC (T-Link) High-bandwidth Digital Content Protection (HDCP) 2.3 | Audio Return Channel (ARC) Auto Low Latency Mode (ALLM) Enhanced Audio Return Channel (eARC) High-bandwidth Digital Content Protection (HDCP) 2.2 T-link (CEC) Variable Refresh Rate (VRR) - 1440p @ 120Hz |
Features
Some additional functional features of the model.
| Features | AI 4K upscaling AI Contrast AI HDR AI Scene Alexa Blue Light Filter Digital Noise Reduction Dynamic Tone Mapping 2.0 Game Accelerator 120 Game Picture Mode HDR Pro Motion Clarity Prime Video Superwide Gameview Wide Color Gamut YouTube | 120Hz Game Accelerator Ai-Clarity Ai-Contrast Ai-Motion AMD FreeSync technology Disney+ Dual Line Gate (DLG) technology Game Master 2.0 Hands-free Voice Control Mega Contrast Micro Dimming - 2040 zones Netflix Quantum Dot Color |
Image file formats
Smart TV sets allow the display of different image file formats.
| Image file formats | JPEG GIF PNG | JPEG GIF PNG |
Audio file formats
Smart TV sets allow playing different audio file formats.
| Audio file formats/codecs | 3GPP AAC AAC+ FLAC M4A MP3 WMA WAV | 3GPP AAC AAC+ FLAC M4A MP3 WMA WAV |
Video file formats
Smart TV sets allow playing various video file formats.
| Video file formats/codecs | 3GPP AVI DivX H.263 H.264 H.265 MKV MP4 MPEG-4 VP9 WMV Xvid | 3GPP AVI DivX H.263 H.264 H.265 MKV MP4 MPEG-4 VC-1 VP8 VP9 WMV AV1 |
Certificates, standards and licenses
Licenses from regulatory agencies, standards, certificates.
| Certificates, standards and licenses | TÜV Rheinland Flicker-free Certified TÜV Rheinland Low Blue Light Certified | - |
Operating and storage conditions
There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.
| Operating temperature | 5 °C - 35 °C 41 °F - 95 °F | 5 °C - 35 °C 41 °F - 95 °F |
| Operating humidity | 20 % - 80 % | 20 % - 80 % |
| Storage temperature | -15 °C - 45 °C 5 °F - 113 °F | -15 °C - 45 °C 5 °F - 113 °F |
| Storage humidity | 10 % - 90 % | 10 % - 90 % |
Accessories
Often the packaging of desktop monitors and smart TV sets includes accessories for them.
| Accessories | Voice remote control - RC833 | Remote control - RC833 |
Additional features
Information about other features.
| Additional features | Premium Frameless Design | - |
| TCL 75C655 | TCL 75C645 |






