Comparison between:
- 27" Dell S2721DGF
- 27" AOC CQ27G3Z
Brand, series, model
Information about the brand, series, model and model aliases.
| Dell S2721DGF | AOC CQ27G3Z | |
 |  | |
| Model alias | S2721DGFA | - |
| Model year | 2020 | 2021 |
Display
Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.
| Size class | 27 in | 27 in |
| Diagonal | 684.7 mm 68.47 cm 26.9567 in 2.2464 ft | 684.66 mm 68.466 cm 26.9551 in 2.2463 ft |
| Width | 596.736 mm 59.6736 cm 23.4935 in 1.9578 ft | 596.736 mm 59.6736 cm 23.4935 in 1.9578 ft |
| Height | 335.664 mm 33.5664 cm 13.2151 in 1.1013 ft | 335.664 mm 33.5664 cm 13.2151 in 1.1013 ft |
| Radius of curvature | - | 1000 mm 100 cm 39.3701 in 3.2808 ft |
| Panel manufacturer | LG | - |
| Panel model | LM270WQA-SSA2 | - |
| Panel type | IPS | VA |
| Panel bit depth | 10 bits (8 bits + FRC) | 8 bits |
| FRC | Yes | No |
| Colors | 1073741824 colors 30 bits | 16777216 colors 24 bits |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 2560 x 1440 pixels Quad HD (QHD) / 1440p | 2560 x 1440 pixels Quad HD (QHD) / 1440p |
| Pixel pitch | 0.233 mm 0.0233 cm 0.0092 in 0.0008 ft | 0.233 mm 0.0233 cm 0.0092 in 0.0008 ft |
| Pixel density | 109 ppi 42 ppcm | 109 ppi 42 ppcm |
| Display area | 90.07 % | 90.09 % |
| Backlight | W-LED | W-LED |
| sRGB | 144 % | 99 % |
| Adobe RGB (1998) | 85 % | - |
| NTSC (1953) | - | 99 % |
| DCI P3 | 98 % | 90 % |
| Brightness | 360 cd/m² | 300 cd/m² |
| Peak brightness | 480 cd/m² | - |
| Static contrast | 1000 : 1 | 3000 : 1 |
| Dynamic contrast | - | 80000000 : 1 |
| HDR | DisplayHDR 400 | - |
| Horizontal viewing angle | 178 ° | 178 ° |
| Vertical viewing angle | 178 ° | 178 ° |
| Minimum response time | 1 ms 0.0010 s | 4 ms 0.0040 s |
| Average response time | 4 ms 0.0040 s | - |
| Maximum response time | 6 ms 0.0060 s | - |
| Input lag | 3.7 ms 0.0037 s | - |
| Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| - | Response time - 0.5 ms (MPRT - Motion Picture Response Time) |
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.
| Horizontal frequency (digital) | - | 30 kHz - 255 kHz |
| Vertical frequency (digital) | 30 Hz - 165 Hz | 48 Hz - 240 Hz |
| DisplayPort - 2560 x 1440 @ 165 Hz HDMI - 2560 x 1440 @ 144 Hz | HDMI - 30 kHz - 230 kHz; 48 Hz - 144 Hz DisplayPort - 30 kHz - 255 kHz; 48 Hz - 240 Hz |
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 |
| Electric current (A) | 1.6 A | 1.5 A |
| Power consumption (off) | - | 0.3 W |
| Power consumption (sleep) | 0.3 W | 0.3 W |
| Power consumption (average) | 32 W | 32 W |
| Power consumption (maximum) | 90 W | - |
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 | 611.6 mm 61.16 cm 24.0787 in 2.0066 ft | 605 mm 60.5 cm 23.8189 in 1.9849 ft |
| Height | 363.6 mm 36.36 cm 14.315 in 1.1929 ft | 367.5 mm 36.75 cm 14.4685 in 1.2057 ft |
| Depth | 67.8 mm 6.78 cm 2.6693 in 0.2224 ft | 95 mm 9.5 cm 3.7402 in 0.3117 ft |
| Weight | 4.5 kg 9.92 lbs | 4.6 kg 10.14 lbs |
| Width with stand | 611.6 mm 61.16 cm 24.0787 in 2.0066 ft | 605 mm 60.5 cm 23.8189 in 1.9849 ft |
| Height with stand | 393.9 mm 39.39 cm 15.5079 in 1.2923 ft | 401.9 mm 40.19 cm 15.8228 in 1.3186 ft |
| Depth with stand | 200.3 mm 20.03 cm 7.8858 in 0.6572 ft | 258.8 mm 25.88 cm 10.189 in 0.8491 ft |
| Weight with stand | - | 5.9 kg 13.01 lbs |
| Box width | - | 690 mm 69 cm 27.1654 in 2.2638 ft |
| Box height | - | 523 mm 52.3 cm 20.5906 in 1.7159 ft |
| Box depth | - | 225 mm 22.5 cm 8.8583 in 0.7382 ft |
| Box weight | 9.7 kg 21.38 lbs | 8.6 kg 18.96 lbs |
| Colors | Black | Black and Red |
Ergonomics
Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.
| VESA mount | Yes | Yes |
| VESA interface | 100 x 100 mm | 100 x 100 mm |
| Removable stand | Yes | Yes |
| Height adjustment | Yes | Yes |
| Height adjustment range | 130 mm 13 cm 5.1181 in 0.4265 ft | 130 mm 13 cm 5.1181 in 0.4265 ft |
| Landscape/portrait pivot | Yes | No |
| Left pivot | 90 ° | - |
| Right pivot | 90 ° | - |
| Left/right swivel | Yes | Yes |
| Left swivel | 45 ° | 40 ° |
| Right swivel | 45 ° | 40 ° |
| Forward/backward tilt | Yes | Yes |
| Forward tilt | 5 ° | 5 ° |
| Backward tilt | 21 ° | 23 ° |
Camera
Many contemporary desktop monitors and smart TV sets have built-in cameras.
| Camera | No | No |
Connectivity
Available connectivity ports, slots and interfaces.
| Connectivity | 4 x USB 3.0 (Type-A; downstream) 1 x USB 3.0 (Type-B; upstream) 2 x HDMI 2.0 1 x DisplayPort 1.4 1 x 3.5 mm Audio In 1 x 3.5 mm Audio Out | 2 x HDMI 2.0 2 x DisplayPort 1.4 1 x 3.5 mm Audio Out |
| High-bandwidth Digital Content Protection (HDCP) | High-bandwidth Digital Content Protection (HDCP) |
Features
Some additional functional features of the model.
| Features | AMD FreeSync Premium Pro Flicker-free technology Low Blue Light NVIDIA G-SYNC Compatible RGB lights | 3-sided frameless design Adaptive-Sync technology AMD FreeSync Premium AOC G-Menu AOC Game Color AOC Shadow Control Flicker-free technology Game Modes Low Blue Light Low Input Lag |
Certificates, standards and licenses
Licenses from regulatory agencies, standards, certificates.
| Certificates, standards and licenses | ENERGY STAR EPEAT TCO Certified RoHS | CCC CE CEL CH RoHS FCC Win 10 |
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 | 0 °C - 40 °C 32 °F - 104 °F | 0 °C - 40 °C 32 °F - 104 °F |
| Operating humidity | 10 % - 80 % | 10 % - 85 % |
| Operating altitude | 5000 m 16404.2 ft | 3657.6 m 12000 ft |
| Storage temperature | -20 °C - 60 °C -4 °F - 140 °F | -20 °C - 60 °C -4 °F - 140 °F |
| Storage humidity | 5 % - 90 % | 5 % - 90 % |
| Storage altitude | 12192 m 40000 ft | 12192 m 40000 ft |
Accessories
Often the packaging of desktop monitors and smart TV sets includes accessories for them.
| Accessories | DisplayPort cable HDMI cable USB 3.0 cable | DisplayPort cable (optional) HDMI cable (optional) |
Additional features
Information about other features.
| Additional features | Security lock slot | Anti-theft stand lock slot - Kensington |
| Dell S2721DGF | AOC CQ27G3Z |