Comparison between:
- 28" Acer XB281HK
- 27" Dell P2715Q
Brand, series, model
Information about the brand, series, model and model aliases.
| Acer XB281HK | Dell P2715Q | |
 |  | |
| Model alias | Predator XB281HKbmiprz | - |
| Model year | 2015 | 2014 |
Display
Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.
| Size class | 28 in | 27 in |
| Diagonal | 711.2 mm 71.12 cm 28 in 2.3333 ft | 685.8 mm 68.58 cm 27 in 2.25 ft |
| Width | 620.93 mm 62.093 cm 24.4461 in 2.0372 ft | 596.16 mm 59.616 cm 23.4709 in 1.9559 ft |
| Height | 341.28 mm 34.128 cm 13.4362 in 1.1197 ft | 335.34 mm 33.534 cm 13.2024 in 1.1002 ft |
| Panel manufacturer | Innolux | LG Display |
| Panel model | - | LM270WR2-SPA1 |
| Panel type | TN | AH-IPS |
| Panel bit depth | 10 bits (8 bits + FRC) | 10 bits (8 bits + FRC) |
| FRC | Yes | Yes |
| Colors | 1073741824 colors 30 bits | 1073741824 colors 30 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 | 0.162 mm 0.0162 cm 0.0064 in 0.0005 ft | 0.155 mm 0.0155 cm 0.0061 in 0.0005 ft |
| Pixel density | 157 ppi 61 ppcm | 163 ppi 64 ppcm |
| Display area | - | 82.18 % |
| Backlight | W-LED | W-LED |
| sRGB | - | 99 % |
| Adobe RGB (1998) | - | 79 % |
| NTSC (1953) | 72 % | 72 % |
| Brightness | 300 cd/m² | 350 cd/m² |
| Static contrast | 1000 : 1 | 1000 : 1 |
| Dynamic contrast | 100000000 : 1 | 2000000 : 1 |
| Horizontal viewing angle | 170 ° | 178 ° |
| Vertical viewing angle | 160 ° | 178 ° |
| Minimum response time | 1 ms 0.0010 s | 6 ms 0.0060 s |
| Average response time | - | 8.6 ms 0.0086 s |
| Maximum response time | - | 14 ms 0.0140 s |
| Input lag | - | 16 ms 0.0160 s |
| Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| - | CIE1972 - 103.96% CIE1931 - 77.6% |
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) | - | 31 kHz - 140 kHz |
| Vertical frequency (digital) | 60 Hz | 29 Hz - 76 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) | - | 1.8 A |
| Power consumption (off) | 0.45 W | 0.3 W |
| Power consumption (sleep) | 0.5 W | 0.3 W |
| Power consumption (average) | 59 W | 50 W |
| Power consumption (maximum) | - | 95 W |
| Power consumption (annual) | 87 kWh | - |
| Energy efficiency class | C | - |
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 | - | 640.74 mm 64.074 cm 25.226 in 2.1022 ft |
| Height | - | 379.66 mm 37.966 cm 14.9472 in 1.2456 ft |
| Depth | - | 51.5 mm 5.15 cm 2.0276 in 0.169 ft |
| Weight | - | 5.03 kg 11.09 lbs |
| Width with stand | 659 mm 65.9 cm 25.9449 in 2.1621 ft | 640.74 mm 64.074 cm 25.226 in 2.1022 ft |
| Height with stand | 415 mm 41.5 cm 16.3386 in 1.3615 ft | 423.86 mm 42.386 cm 16.6874 in 1.3906 ft |
| Depth with stand | 268 mm 26.8 cm 10.5512 in 0.8793 ft | 203.86 mm 20.386 cm 8.026 in 0.6688 ft |
| Weight with stand | 7.57 kg 16.69 lbs | 7.53 kg 16.6 lbs |
| Colors | Black | Black |
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 | 150 mm 15 cm 5.9055 in 0.4921 ft | 115 mm 11.5 cm 4.5276 in 0.3773 ft |
| Landscape/portrait pivot | Yes | Yes |
| Left pivot | 90 ° | 0 ° |
| Right pivot | 90 ° | 90 ° |
| Left/right swivel | Yes | Yes |
| Left swivel | 30 ° | 45 ° |
| Right swivel | 30 ° | 45 ° |
| Forward/backward tilt | Yes | Yes |
| Forward tilt | 5 ° | 5 ° |
| Backward tilt | 35 ° | 21 ° |
Audio
Information about the audio system - number and power of the built-in speakers, supported audio technologies.
| Speakers | 2 x 2 W | - |
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 (downstream) 1 x USB 3.0 (upstream) 1 x HDMI 1.4 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out | 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream) 1 x HDMI 1.4 (MHL) 1 x DisplayPort (Output MST) 1 x DisplayPort 1.2 1 x DisplayPort 1.2 (Input mini) 1 x 3.5 mm Audio Out |
Features
Some additional functional features of the model.
| Features | Flicker-free technology Nvidia G-SYNC Technology | DDC/CI |
Certificates, standards and licenses
Licenses from regulatory agencies, standards, certificates.
| Certificates, standards and licenses | ENERGY STAR ErP TCO Certified Displays 6.0 | CECP ENERGY STAR Epeat Gold RoHS compliant TCO Certified Displays |
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 |
| Operating humidity | - | 10 % - 80 % |
| Operating altitude | - | 5000 m 16404.2 ft |
| Storage temperature | - | -20 °C - 60 °C -4 °F - 140 °F |
| Storage humidity | - | 5 % - 90 % |
| Storage altitude | - | 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 - mini-DP to DP USB 3.0 upstream cable |
| Acer XB281HK | Dell P2715Q |