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| General Info | ||
|---|---|---|
| Model Number | ViewSonic VX2478-smhd | Dell U2520D |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2016 | 2020 |
| Brand | ViewSonic | Dell |
| Model Series | UltraSharp | |
| Model Number | VX2478-smhd | U2520D |
| Alias | UltraSharp U2520D | |
| Display | ||
| Screen Size Class | 24" (inches) | 25" (inches) |
| Diagonal Size | 23.81 in 60.5 cm 604.7 mm 1.98 ft |
24.98 in 63.4 cm 634.4 mm 2.08 ft |
| Screen Width | 20.7 in 52.6 cm 525.7 mm 1.72 ft |
21.77 in 55.3 cm 552.96 mm 1.81 ft |
| Screen Height | 11.64 in 29.6 cm 295.7 mm 0.97 ft |
12.25 in 31.1 cm 311.04 mm 1.02 ft |
| Display Manufacturer | LG Display | |
| Display Type | IPS | IPS |
| Display Bit Depth | 8 bits (6 bits + FRC) | 8 bits |
| Frame Rate Control | Yes | No |
| Max Number of Colors | 16777216 | 16777216 |
| Bits | 24 | 24 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 2560 x 1440 | 2560 x 1440 |
| Screen Pixel Pitch | 0.205 mm | 0.216 mm |
| Screen Pixel Density | 123 ppi | 117 ppi |
| Screen-to-Body Ratio | 87.98 % | 91.23 % |
| Backlight Source | W-LED | W-LED |
| DCI P3 | 95% | |
| sRGB | 99 % | |
| Screen Brightness | 300 cd/m² | 350 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 120000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Display Minimum Response Time | 4 ms | 5 ms |
| Display Average Response Time | 14 ms | 8 ms |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| HDR | DisplayHDR 400 | |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 1.61 in 4.1 cm 41 mm 0.13 ft |
1.96 in 5 cm 49.9 mm 0.16 ft |
| Case Weight | 2.8 kg 6 lbs |
4.2 kg 9 lbs |
| Case Width with Stand | 21.31 in 54.1 cm 541.3 mm 1.78 ft |
22.35 in 56.8 cm 567.7 mm 1.86 ft |
| Case Height with Stand | 16.57 in 42.1 cm 420.9 mm 1.38 ft |
15.07 in 38.3 cm 382.9 mm 1.26 ft |
| Case Depth with Stand | 7.48 in 19 cm 190 mm 0.62 ft |
7.28 in 18.5 cm 185 mm 0.61 ft |
| Case Weight with Stand | 3.47 kg 8 lbs |
6.4 kg 14 lbs |
| Case Color | Black | Black |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x DisplayPort 1.2 (Input mini) 1 x 3.5 mm Audio Out 2 x HDMI 1.4 1 x DisplayPort 1.2 |
1 x USB 3.0 (Type-C; 90W; DisplayPort) 1 x USB 3.0 (Type-C; Gen 1; downstream; 15W) 1 x DisplayPort 1.4 (in) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.4 (out) 1 x HDMI 2.0 (CEC) 1 x USB 3.0 (downstream; BC 1.2 charging at 2A) 2 x USB 3.0 (Type-A; downstream) |
| Audio | ||
| Features | ||
| Cool Features | HDCP (High-bandwidth Digital Content Protection) | Flicker-free technology Low Blue Light |
| Extra Features | Anti-theft stand lock slot - Kensington | Security lock slot Anti-theft stand lock slot |
| Ergonomics | ||
| Case Width | 21.31 in 54.1 cm 541.3 mm 1.78 ft |
22.35 in 56.8 cm 567.7 mm 1.86 ft |
| Case Height | 12.85 in 32.6 cm 326.4 mm 1.07 ft |
13.07 in 33.2 cm 332.1 mm 1.09 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | No | Yes |
| Height Adjustment Range | 130 mm 13 cm 5.1181 in 0.4265 ft |
|
| Landscape or Portrait Pivot Support | No | Yes |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Left or Right Swivel Support | No | Yes |
| Left Swivel | 45 ° | |
| Right Swivel | 45 ° | |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 6 ° | 5 ° |
| Backward Tilt | 15 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 24 Hz - 85 Hz | 60 Hz |
| Horizontal Digital Frequency | 15 kHz - 120 kHz | |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | DisplayPort cable - mini-DP to DP | DisplayPort cable USB Type-C to Type-C cable USB Type-C to Type-A cable |
| Certificates and Standards | ||
| Licenses | BSMI CB CCC CE EMC CEL Level 1 cETLus ENERGY STAR 7.0 Epeat Silver ErP eStandby FCC Class B ICES-003 PSE REACH SVHC List & DoC RoHS Green BOM VCCI WEEE |
BFR-free CEL ENERGY STAR 6.0 EPEAT Mercury-free NFPA 99 PVC-free RoHS Compliant TCO Certified Displays |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 0 °C - 40 °C 32 °F - 104 °F |
0 °C - 40 °C 32 °F - 104 °F |
| Safe Operating Humidity Level | 20 % - 90 % | 10 % - 80 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
|
| Internal Storage Humidity | 5 % - 90 % | |
| Max Operating Altitude | 5000 | |
| Max Storage Altitude | 12192 |
| ViewSonic VX2478-smhd | Dell U2520D |
