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| General Info | ||
|---|---|---|
| Model Number | Samsung C34J791 | Dell U2520D |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2018 | 2020 |
| Brand | Samsung | Dell |
| Model Series | UltraSharp | |
| Model Number | C34J791 | U2520D |
| Alias | LC34J791WTEXXS | UltraSharp U2520D |
| Display | ||
| Screen Size Class | 34" (inches) | 25" (inches) |
| Diagonal Size | 34 in 86.4 cm 863.6 mm 2.83 ft |
24.98 in 63.4 cm 634.4 mm 2.08 ft |
| Screen Width | 31.49 in 80 cm 799.8 mm 2.62 ft |
21.77 in 55.3 cm 552.96 mm 1.81 ft |
| Screen Height | 13.18 in 33.5 cm 334.8 mm 1.1 ft |
12.25 in 31.1 cm 311.04 mm 1.02 ft |
| Display Curvature | 1500 | |
| Display Manufacturer | Samsung | |
| Display Type | SVA | IPS |
| Display Bit Depth | 8 bits | 8 bits |
| Frame Rate Control | No | No |
| Max Number of Colors | 16777216 | 16777216 |
| Bits | 24 | 24 |
| Screen Aspect Ratio | 21:9 | 16:9 |
| Screen Resolution | 3440 x 1440 | 2560 x 1440 |
| Screen Pixel Pitch | 0.233 mm | 0.216 mm |
| Screen Pixel Density | 109 ppi | 117 ppi |
| Screen-to-Body Ratio | 91.27 % | 91.23 % |
| Backlight Source | Edge LED | W-LED |
| DCI P3 | 95% | |
| sRGB | 125 % | 99 % |
| Adobe RGB 1998 | 92 % | |
| Screen Brightness | 300 cd/m² | 350 cd/m² |
| Static Screen Contrast | 3000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 100000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Screen Input Lag | 6 ms | |
| Display Minimum Response Time | 4 ms | 5 ms |
| Display Average Response Time | 14 ms | 8 ms |
| Display Coating | Anti-glare/Matte (2H) | Anti-glare/Matte (3H) |
| HDR | DisplayHDR 400 | |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 6.57 in 16.7 cm 167 mm 0.55 ft |
1.96 in 5 cm 49.9 mm 0.16 ft |
| Case Weight | 6.3 kg 14 lbs |
4.2 kg 9 lbs |
| Case Width with Stand | 31.84 in 80.9 cm 808.7 mm 2.65 ft |
22.35 in 56.8 cm 567.7 mm 1.86 ft |
| Case Height with Stand | 20.31 in 51.6 cm 516 mm 1.69 ft |
15.07 in 38.3 cm 382.9 mm 1.26 ft |
| Case Depth with Stand | 12.18 in 30.9 cm 309.4 mm 1.02 ft |
7.28 in 18.5 cm 185 mm 0.61 ft |
| Case Weight with Stand | 7.7 kg 17 lbs |
6.4 kg 14 lbs |
| Case Color | White, Silver | Black |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x DisplayPort 1.2 2 x Thunderbolt 3.0 1 x 3.5 mm Audio Out 2 x USB 2.0 (downstream) 1 x HDMI 1.4 |
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 | ||
| Audio Speakers | 2 x 7W | |
| Features | ||
| Cool Features | Eye Saver Mode Flicker-free technology Picture-by-Picture Picture-in-Picture HDCP (High-bandwidth Digital Content Protection) AMD FreeSync technology Eco Saving Plus |
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 | 31.84 in 80.9 cm 808.7 mm 2.65 ft |
22.35 in 56.8 cm 567.7 mm 1.86 ft |
| Case Height | 14.28 in 36.3 cm 362.8 mm 1.19 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 | Yes | Yes |
| Height Adjustment Range | 100 mm 10 cm 3.937 in 0.3281 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 | No | Yes |
| Left Swivel | 45 ° | |
| Right Swivel | 45 ° | |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 2 ° | 5 ° |
| Backward Tilt | 34 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 48 Hz - 100 Hz | 60 Hz |
| Horizontal Digital Frequency | 30 kHz - 152 kHz | |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | DisplayPort cable USB Type-C to Type-C cable USB Type-C to Type-A cable |
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| Certificates and Standards | ||
| Licenses | ENERGY STAR FCC Class B ISO9241-307 TÜV/Ergonomics |
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 | 10 °C - 40 °C 50 °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 % - 95 % | 5 % - 90 % |
| Max Operating Altitude | 5000 | |
| Max Storage Altitude | 12192 |
| Samsung C34J791 | Dell U2520D |
