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| General Info | ||
|---|---|---|
| Model Number | Dell U3821DW | Asus VG258Q |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2021 | 2018 |
| Brand | Dell | Asus |
| Model Series | UltraSharp | |
| Model Number | U3821DW | VG258Q |
| Display | ||
| Screen Size Class | 38" (inches) | 25" (inches) |
| Diagonal Size | 37.52 in 95.3 cm 952.9 mm 3.13 ft |
24.5 in 62.2 cm 622.3 mm 2.04 ft |
| Screen Width | 35.04 in 89 cm 890 mm 2.92 ft |
21.41 in 54.4 cm 543.744 mm 1.78 ft |
| Screen Height | 15.27 in 38.8 cm 387.8 mm 1.27 ft |
11.91 in 30.3 cm 302.616 mm 0.99 ft |
| Display Curvature | 2300 | |
| Display Manufacturer | AU Optronics | |
| Display Type | IPS | TN |
| Display Bit Depth | 10 bits | 8 bits (6 bits + FRC) |
| Frame Rate Control | Yes | |
| Max Number of Colors | 1073741824 | 16777216 |
| Bits | 30 | 24 |
| Screen Aspect Ratio | 24:10 | 16:9 |
| Screen Resolution | 3840 x 1600 | 1920 x 1080 |
| Screen Pixel Pitch | 0.229 mm | 0.283 mm |
| Screen Pixel Density | 109 ppi | 89 ppi |
| Screen-to-Body Ratio | 98.38 % | 88.94 % |
| Backlight Source | W-LED | W-LED |
| DCI P3 | 95% | 62% |
| sRGB | 100 % | 90 % |
| NTSC 1953 | 72 % | |
| Screen Brightness | 300 cd/m² | 400 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 100000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 170 ° |
| Screen Vertical Viewing Angle | 178 ° | 160 ° |
| Screen Input Lag | 14 ms | |
| Display Minimum Response Time | 5 ms | 1 ms |
| Display Average Response Time | 8 ms | 3 ms |
| Display Maximum Response Time | 32 ms | |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte |
| HDR | DisplayHDR 600 | HDR10 HLG (Hybrid Log Gamma) |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 4.03 in 10.2 cm 102.4 mm 0.34 ft |
2.01 in 5.1 cm 51.1 mm 0.17 ft |
| Case Weight | 8.8 kg 19 lbs |
2.7 kg 6 lbs |
| Case Width with Stand | 35.21 in 89.4 cm 894.3 mm 2.93 ft |
22.15 in 56.3 cm 562.5 mm 1.85 ft |
| Case Height with Stand | 17.47 in 44.4 cm 443.8 mm 1.46 ft |
14.04 in 35.7 cm 356.6 mm 1.17 ft |
| Case Depth with Stand | 9.89 in 25.1 cm 251.2 mm 0.82 ft |
8.72 in 22.1 cm 221.4 mm 0.73 ft |
| Case Weight with Stand | 13.6 kg 30 lbs |
4.9 kg 11 lbs |
| Case Color | Black | Black |
| Hardware | ||
| CPU Cores | 4 | |
| CPU Frequency | 1200 | |
| GPU Cores | 2 | |
| RAM Memory Size | 1.5 | |
| Internal Storage | 4 | |
| TV Tuner | Analog (NTSC/PAL/SECAM) ATSC Clear QAM |
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| Built-in Camera | No | No |
| Network | LAN Wi-Fi 802.11a (IEEE 802.11a-1999) 802.11b (IEEE 802.11b-1999) 802.11g (IEEE 802.11g-2003) 802.11n (IEEE 802.11n-2009) 802.11n 5GHz 802.11ac (IEEE 802.11ac) Wi-Fi Direct DLNA |
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| Connectivity | 1 x USB 3.2 (Type-C; upstream; 90W; DP Alt Mode) 4 x USB 3.2 (Type-A; Gen 1; downstream) 2 x HDMI 2.0 1 x 3.5 mm Audio Out (line-out for speakers) 1 x DisplayPort 1.4 1 x Ethernet RJ45 1 x USB 3.2 (Type-B; Gen 1; upstream) 1 x USB 3.2 (Type-C; downstream) |
1 x DVI-D Dual Link 1 x 3.5 mm Audio In 1 x 3.5 mm Audio Out 1 x HDMI 1.4 1 x DisplayPort 1.2 |
| Audio | ||
| Audio Speakers | 2 x 9W | 2 x 2W |
| Features | ||
| OS | webOS 4.0 | |
| Cool Features | Low Blue Light Picture-by-Picture Picture-in-Picture Flicker-free technology KVM Switch |
Flicker-free technology GamePlus (Crosshair/Timer/FPS Counter/Display Alignment) HDCP (High-bandwidth Digital Content Protection) Trace Free Technology Low Blue Light GameVisual 5-way OSD joystick AMD FreeSync technology |
| Extra Features | Security lock slot | Anti-theft stand lock slot - Kensington |
| Ergonomics | ||
| Case Width | 35.21 in 89.4 cm 894.3 mm 2.93 ft |
22.15 in 56.3 cm 562.5 mm 1.85 ft |
| Case Height | 15.44 in 39.2 cm 392.3 mm 1.29 ft |
12.95 in 32.9 cm 328.9 mm 1.08 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | Yes | Yes |
| Height Adjustment Range | 120 mm 12 cm 4.7244 in 0.3937 ft |
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 | Yes | Yes |
| Left Swivel | 30 ° | 90 ° |
| Right Swivel | 30 ° | 90 ° |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 21 ° | 33 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 56 Hz - 76 Hz | 40 Hz - 144 Hz |
| Horizontal Digital Frequency | 30 kHz - 100 kHz | 30 kHz - 160 kHz |
| Screen Interpolation Technology | Clear Motion Rate | |
| Screen Interpolation Value | 240 | |
| Screen Interpolation Measurement Unit | NULL | CMR |
| Accessories | ||
| Extras | DisplayPort cable HDMI cable USB Type-C cable USB Type-B 3.2 Gen 1 cable |
Audio cable DisplayPort cable - optional DVI cable - optional HDMI cable - optional |
| Certificates and Standards | ||
| Licenses | ENERGY STAR 8.0 EPEAT Gold RoHS TAA Availability TCO Certified Displays |
BSMI CB CCC CE cTick CU ENERGY STAR ErP eStandby FCC Class B J-MOSS KCC PCB PSE RCM RoHS TCO Certified Displays TÜV Low Blue Light TÜV Flicker-free UL/cUL VCCI WEEE WHQL (Windows 10; Windows 8.1; Windows 7) |
| 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 | 10 % - 80 % | 10 % - 80 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
-20 °C - 60 °C -4 °F - 140 °F |
| Internal Storage Humidity | 5 % - 90 % | 5 % - 85 % |
| Max Operating Altitude | 5000 | |
| Max Storage Altitude | 12192 |
| Dell U3821DW | Asus VG258Q |
