Comparison between:
- 38.5" Dell Alienware AW3926QW
- 34.14" Dell Alienware AW3418DW
- 39.7" LG 40U990A
- 39.7" Dell U4025QW
Brand, series, model
Information about the brand, series, model and model aliases.
| Dell Alienware AW3926QW | Dell Alienware AW3418DW | LG 40U990A | Dell U4025QW | |
| Series | - | - | UltraFine | UltraSharp |
 |  |  |  | |
| Model alias | - | - | UltraFine 40U990A 40U990A-W | UltraSharp U4025QW |
| Model year | 2026 | 2017 | 2025 | 2024 |
Display
Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.
| Size class | 38.5 in | 34.14 in | 39.7 in | 39.7 in |
| Diagonal | 977.44 mm 97.744 cm 38.4819 in 3.2068 ft | 867.2 mm 86.72 cm 34.1417 in 2.8451 ft | 1008.59 mm 100.859 cm 39.7083 in 3.309 ft | 1008.59 mm 100.859 cm 39.7083 in 3.309 ft |
| Width | 915 mm 91.5 cm 36.0236 in 3.002 ft | 799.8 mm 79.98 cm 31.4882 in 2.624 ft | 929.28 mm 92.928 cm 36.5858 in 3.0488 ft | 929.28 mm 92.928 cm 36.5858 in 3.0488 ft |
| Height | 383 mm 38.3 cm 15.0787 in 1.2566 ft | 334.8 mm 33.48 cm 13.1811 in 1.0984 ft | 392.04 mm 39.204 cm 15.4346 in 1.2862 ft | 392.04 mm 39.204 cm 15.4346 in 1.2862 ft |
| Radius of curvature | 1500 mm 150 cm 59.0551 in 4.9213 ft | 1900 mm 190 cm 74.8031 in 6.2336 ft | 2500 mm 250 cm 98.4252 in 8.2021 ft | 2500 mm 250 cm 98.4252 in 8.2021 ft |
| Panel manufacturer | LG Display | LG Display | LG Display | LG Display |
| Panel model | - | LM340UW4-SSA1 | LM400RW2-SSA1 | LM400RW2-SSA1 |
| Panel type | OLED | AH-IPS | IPS | IPS |
| Panel bit depth | 10 bits | 8 bits | 10 bits (8 bits + FRC) | 10 bits (8 bits + FRC) |
| FRC | No | No | Yes | Yes |
| Colors | 1073741824 colors 30 bits | 16777216 colors 24 bits | 1073741824 colors 30 bits | 1073741824 colors 30 bits |
| Aspect ratio | 2.37:1 | 2.389:1 | 2.37:1 | 2.37:1 |
| Resolution | 5120 x 2160 pixels | 3440 x 1440 pixels | 5120 x 2160 pixels | 5120 x 2160 pixels |
| Pixel pitch | 0.178 mm 0.0178 cm 0.007 in 0.0006 ft | 0.233 mm 0.0233 cm 0.0092 in 0.0008 ft | 0.182 mm 0.0182 cm 0.0071 in 0.0006 ft | 0.182 mm 0.0182 cm 0.0071 in 0.0006 ft |
| Pixel density | 142 ppi 55 ppcm | 109 ppi 43 ppcm | 140 ppi 55 ppcm | 140 ppi 55 ppcm |
| Display area | - | 90.51 % | 91.57 % | 91.83 % |
| Backlight | - | W-LED | Edge LED (Local Dimming) | W-LED |
| sRGB | - | 99 % | - | 100 % |
| DCI P3 | 99 % | - | 99 % | 99 % |
| Brightness | 300 cd/m² | 300 cd/m² | 450 cd/m² | 450 cd/m² |
| Peak brightness | 1300 cd/m² | - | 600 cd/m² | 600 cd/m² |
| Static contrast | 1850000 : 1 | 1000 : 1 | 2000 : 1 | 2000 : 1 |
| HDR | DisplayHDR 500 True Black HDR10 Dolby Vision | - | HDR10 DisplayHDR 600 | DisplayHDR 600 |
| Horizontal viewing angle | 178 ° | 178 ° | 178 ° | 178 ° |
| Vertical viewing angle | 178 ° | 178 ° | 178 ° | 178 ° |
| Minimum response time | 0.03 ms 0.0000 s | 4 ms 0.0040 s | 5 ms 0.0050 s | 5 ms 0.0050 s |
| Average response time | - | 10 ms 0.0100 s | 14 ms 0.0140 s | - |
| Input lag | - | 4 ms 0.0040 s | - | 4.7 ms 0.0047 s |
| Coating | Glossy | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| 4th Gen Tandem OLED 4-stack Primary RGB Stripe Tandem structure Anti-reflective coating | CIE1976 - 82% CIE1931 - 73% | Local dimming zones - 8 | - |
3D
3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.
| 3D | No | No | No | No |
Frequencies
Information about the horizontal and vertical refresh rates/frequencies.
| Horizontal frequency (digital) | - | 73 kHz - 151 kHz | - | - |
| Vertical frequency (digital) | 48 Hz - 165 Hz | 30 Hz - 120 Hz | 48 Hz - 120 Hz | 48 Hz - 120 Hz |
| Dual mode 5K2K @ 165 Hz UWFHD @ 330 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 | 100 V - 120 V | 100 V - 120 V |
| 220V | 220 V - 240 V | 220 V - 240 V | 220 V - 240 V | 220 V - 240 V |
| Alternating current frequency | 50 Hz - 60 Hz | 50 Hz - 60 Hz | 50 Hz - 60 Hz | 50 Hz - 60 Hz |
| Electric current (A) | 13.5 A | 1.8 A | - | - |
| Power consumption (off) | 0.5 W | 0.3 W | 0.3 W | 0.3 W |
| Power consumption (sleep) | 0.5 W | 0.5 W | 0.5 W | 0.5 W |
| Power consumption (eco) | - | 25 W | - | - |
| Power consumption (average) | - | 60 W | 45 W | - |
| Power consumption (maximum) | - | 110 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 | - | 813.45 mm 81.345 cm 32.0256 in 2.6688 ft | 947.7 mm 94.77 cm 37.311 in 3.1093 ft | 946.6 mm 94.66 cm 37.2677 in 3.1056 ft |
| Height | - | 363.68 mm 36.368 cm 14.3181 in 1.1932 ft | 419.8 mm 41.98 cm 16.5276 in 1.3773 ft | 419.1 mm 41.91 cm 16.5 in 1.375 ft |
| Depth | - | 121.37 mm 12.137 cm 4.7783 in 0.3982 ft | 106.3 mm 10.63 cm 4.185 in 0.3488 ft | 59.6 mm 5.96 cm 2.3465 in 0.1955 ft |
| Weight | - | 7.27 kg 16.03 lbs | 9.2 kg 20.28 lbs | 8.35 kg 18.41 lbs |
| Width with stand | - | 813.45 mm 81.345 cm 32.0256 in 2.6688 ft | 947.7 mm 94.77 cm 37.311 in 3.1093 ft | 946.6 mm 94.66 cm 37.2677 in 3.1056 ft |
| Height with stand | - | 442.44 mm 44.244 cm 17.4189 in 1.4516 ft | 484.3 mm 48.43 cm 19.0669 in 1.5889 ft | 457.8 mm 45.78 cm 18.0236 in 1.502 ft |
| Depth with stand | - | 319.09 mm 31.909 cm 12.5626 in 1.0469 ft | 260 mm 26 cm 10.2362 in 0.853 ft | 248 mm 24.8 cm 9.7638 in 0.8136 ft |
| Weight with stand | - | 12.24 kg 26.98 lbs | 14.1 kg 31.09 lbs | 12.22 kg 26.94 lbs |
| Box width | - | - | 1206 mm 120.6 cm 47.4803 in 3.9567 ft | - |
| Box height | - | - | 534 mm 53.4 cm 21.0236 in 1.752 ft | - |
| Box depth | - | - | 201 mm 20.1 cm 7.9134 in 0.6594 ft | - |
| Box weight | - | - | 17.8 kg 39.24 lbs | 19.02 kg 41.93 lbs |
| Stand width | - | - | - | 385 mm 38.5 cm 15.1575 in 1.2631 ft |
| Stand depth | - | - | 260 mm 26 cm 10.2362 in 0.853 ft | 247 mm 24.7 cm 9.7244 in 0.8104 ft |
| Colors | Black | Gray | White and Silver | Black and Silver |
Ergonomics
Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.
| VESA mount | Yes | Yes | Yes | Yes |
| VESA interface | 100 x 100 mm | 100 x 100 mm | 100 x 100 mm | 100 x 100 mm |
| Removable stand | Yes | Yes | Yes | Yes |
| Height adjustment | Yes | Yes | 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 | 150 mm 15 cm 5.9055 in 0.4921 ft |
| Landscape/portrait pivot | No | No | No | No |
| Left/right swivel | Yes | Yes | Yes | Yes |
| Left swivel | - | 20 ° | 20 ° | 30 ° |
| Right swivel | - | 20 ° | 20 ° | 30 ° |
| Forward/backward tilt | Yes | Yes | Yes | Yes |
| Forward tilt | - | 5 ° | 5 ° | 5 ° |
| Backward tilt | - | 25 ° | 20 ° | 21 ° |
Audio
Information about the audio system - number and power of the built-in speakers, supported audio technologies.
| Speakers | - | - | 2 x 10 W | 2 x 9 W |
| - | - | Rich Bass | - |
Camera
Many contemporary desktop monitors and smart TV sets have built-in cameras.
| Camera | No | No | No | No |
Connectivity
Available connectivity ports, slots and interfaces.
| Connectivity | 1 x USB 3.2 (Type-C; Gen 2; 10 Gbps; upstream; 90W; DP Alt Mode) 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps; downstream; 15W) 2 x USB 3.2 (Type-A; Gen 1; 5 Gbps; downstream) 2 x HDMI 2.1 (FRL 6 (48 Gbps); eARC) 1 x DisplayPort 2.1 (UHBR20) 1 x 3.5 mm Audio Out | 1 x USB 3.0 (upstream) 4 x USB 3.0 (downstream) 1 x HDMI 1.4 1 x DisplayPort 1.2 1 x 3.5 mm Audio In 1 x 3.5 mm Audio Out | 1 x USB 3.2 (Type-C; Gen 2; 10 Gbps; upstream; data only) 4 x USB 3.2 (Type-C; Gen 2; 10 Gbps; downstream) 2 x USB 3.2 (Type-A; Gen 2; 10 Gbps; downstream) 1 x Ethernet RJ45 2 x HDMI 2.1 (DSC) 1 x DisplayPort 2.1 (UHBR20) 1 x Thunderbolt 5.0 (out; 80 Gbps; 15W) 1 x Thunderbolt 5.0 (in; 80 Gbps; 96W) 1 x 3.5 mm Audio Out (4-pole) | 1 x USB 3.2 (Type-C; Gen 2; 10 Gbps; upstream; data only) 2 x USB 3.2 (Type-C; Gen 2; 10 Gbps; downstream; 15W) 4 x USB 3.2 (Type-A; Gen 2; 10 Gbps; downstream) 1 x Ethernet RJ45 (Wake on LAN; PXE boot; MAC address pass-thru) 1 x HDMI 2.1 1 x DisplayPort 1.4 2 x Thunderbolt 4.0 (Type-C; upstream; 140W; DP Alt Mode) 1 x 3.5 mm Audio Out |
| - | High-bandwidth Digital Content Protection (HDCP) | High-bandwidth Digital Content Protection (HDCP) 2.2 Daisy Chaining | Fixed Rate Link (FRL) High-bandwidth Digital Content Protection (HDCP) 2.2 Internal Multi-Stream Transport (iMST) |
Features
Some additional functional features of the model.
| Features | AlienFX lighting with new AW30 glyph iconography Alienware Command Center AMD FreeSync Premium Pro ComfortView Plus (Hardware Solution) Creator Mode Flicker-free technology Graphite film heatsink KVM Switch Low Blue Light NVIDIA G-Sync Compatible Picture-by-Picture Picture-in-Picture Pixel Refresh / Pixel Shift / Panel Refresh Quantum Dot Color | Flicker-free technology Low Blue Light Nvidia G-SYNC Technology | 3-sided virtually borderless design AMD Freesync Premium Ambient Light Sensor Auto Input Switch Backlight Sensor Color Weakness Mode Dual Controller Flicker-free technology IPS Black KVM Switch Low Blue Light Picture-by-Picture Picture-in-Picture Reader Mode | Adaptive-Sync technology Ambient Light Sensor Auto KVM ComfortView Plus Dell Display Manager Flicker-free technology IPS Black Network KVM Low Blue Light OSD joystick Picture-by-Picture Picture-in-Picture |
Certificates, standards and licenses
Licenses from regulatory agencies, standards, certificates.
| Certificates, standards and licenses | UL EyeSafe CPF60 (Circadian Protection Factor) UL EyeSafe RPF40 (Retinal Protection Factor) UL-certified Perfect Black UL-certified Perfect Color UL-certified Perfect Reproduction UL-verified Flicker-free UL_verified Discomfort Galre Free UL-verified Low Blue Light Platinum (Hardware Solution) | RoHS Compliant | CE Energy Star EPA EPEAT Bronze FCC-B J-Moss RoHS TCO Certified Displays TÜV Rheinland Eye Comfort 3.0 Certified (5-star) UL(cUL) VCCI | Energy Star EPEAT Gold Eye Comfort 3.0 RoHS TCO Certified Displays TÜV Rheinland 5-star Eye Comfort Certified |
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 | 0 °C - 40 °C 32 °F - 104 °F | 0 °C - 40 °C 32 °F - 104 °F |
| Operating humidity | 20 % - 80 % | 10 % - 80 % | 10 % - 80 % | 10 % - 80 % |
| Operating altitude | 3658 m 12001.3 ft | 5000 m 16404.2 ft | 5000 m 16404.2 ft | 5000 m 16404.2 ft |
| Storage temperature | -20 °C - 60 °C -4 °F - 140 °F | -20 °C - 60 °C -4 °F - 140 °F | -20 °C - 60 °C -4 °F - 140 °F | -20 °C - 60 °C -4 °F - 140 °F |
| Storage humidity | 20 % - 80 % | 5 % - 90 % | 5 % - 85 % | 5 % - 90 % |
| Storage altitude | 12192 m 40000 ft | 12192 m 40000 ft | 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 Type-C cable | DisplayPort cable DisplayPort cable - mini-DP to DP USB 3.0 upstream cable | DisplayPort 2.1 cable HDMI 2.1 cable Thunderbolt 5 cable USB Type-C to Type-C cable | DisplayPort cable HDMI cable Thunderbolt 4 (USB-C) Active Cable USB Type-A to Type-B cable |
Additional features
Information about other features.
| Additional features | Anti-theft stand lock slot - Kensington Unity Hexagonal Design | Security lock slot | Anti-theft stand lock slot - Kensington | Security lock slot |
| Dell Alienware AW3926QW | Dell Alienware AW3418DW | LG 40U990A | Dell U4025QW |