34.14″ Dell U3423WE – Specs & Features
The Dell U3423WE is a 34.14-inch UWQHD Monitor designed for gaming and multimedia. It features a AH-IPS panel for accurate colours and wide viewing angles. The Monitor is suitable for gaming and creative work and includes 56 Hz - 76 Hz refresh rate and USB-C connectivity. However, it may not be ideal for pixel density (109 PPI) lower than a 27" QHD equivalent. It scores Great — 7.6/10 across our display performance benchmarks.
- 350 cd/m² brightness — comfortable for typical indoor lighting conditions.
- AH-IPS panel delivers consistent colour accuracy across a 178° horizontal and vertical viewing angle.
Scores and analysis are based on DisplayInput – Monitor & TV Specs Comparison's display benchmark methodology across 6 verified specifications. Data sourced from Dell's official specifications and independent lab measurements.
Display Performance
Who Should Buy the Dell U3423WE
Real-World Use Cases
Pros & Cons
- 350 cd/m² anti-glare display comfortable for all-day use in typical room lighting
- QHD resolution (3440 x 1440) 78% more pixels than FHD for noticeably crisper visuals
- 5.0 ms (GtG) response time clean pixel transitions for everyday content and media
- 98% DCI-P3 vibrant, saturated colors well beyond standard sRGB monitors
- Full ergonomic stand (height, swivel, tilt) adaptable for comfortable long-session use
- QHD on 34.14" wide panel pixel density (109 PPI) lower than a 27" QHD equivalent
- No Thunderbolt 4 USB-C present but lacks 40 Gbps bandwidth and high-wattage charging
- No HDR support standard dynamic range only; HDR content will be tone-mapped without benefit
- No factory calibration certificate colour-critical work may require professional calibration
- On-screen display navigation requires multiple button presses to adjust settings
Score & Ratings
| Specification | Value | 💡 What It Means |
|---|---|---|
| Brand | Dell | |
| Model | U3423WE | |
| Series | UltraSharp | |
| Model Alias | UltraSharp U3423WE | |
| Model Year | 2022 |
△ Average 2022 — 4-year-old model. May lack the latest HDR or refresh-rate standards.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Size Class | 34.14-inch |
✓ Good 34" — popular desktop size. Enough space for multitasking without head movement.
|
| Panel Type | AH-IPS |
✓ Good IPS — consistent colour accuracy across 178° viewing angle. No colour shift when viewed from the side.
|
| Curvature | 1900 mm (millimeters) |
△ Average 1900 mm (millimeters) curve — subtle. Mostly cosmetic; minimal immersive benefit.
|
| Resolution | 3440 x 1440 |
✓ Good QHD (2560×1440) — noticeably sharper than 1080p on 27"+ screens. Sweet spot for productivity and gaming.
|
| Aspect Ratio | - | |
| Pixel Density | 109 PPI |
△ Average 109 PPI — adequate sharpness for monitor use. Comfortable for text and media at 50–80cm.
|
| Pixel Pitch | 0.233 mm (millimeters) |
✓ Good 0.233 mm (millimeters) pitch — fine. Comfortable sharpness at desk viewing distances.
|
| Display Area | 91.8 % (percent) |
| Specification | Value | 💡 What It Means |
|---|---|---|
| Color Depth | 10 bits |
✓ Good 10-bit — 1.07 billion colours. Eliminates colour banding in HDR skies, skin tones and gradients.
|
| Colors | 1073741824 colors |
✓ Good 1.07 billion colours (10-bit) — smooth HDR gradients; no visible banding in any content.
|
| sRGB | 100% |
✓ Good 100% sRGB — virtually complete coverage. Colour output matches what clients and printers receive exactly.
|
| DCI-P3 Coverage | 98% |
✓ Good 98% DCI-P3 — excellent for professional work. Reliable for photo editing and video colour grading.
|
| HDR Support | - |
| Specification | Value | 💡 What It Means |
|---|---|---|
| Brightness (Typical) | 350 cd/m² |
△ Average 350 cd/m² — comfortable indoors. May wash out next to a bright window or in direct sunlight.
|
| Peak Brightness | - |
OLED brightness varies per pixel and scene. Manufacturers often omit a fixed nit figure; contrast quality exceeds most LED panels anyway.
|
| Contrast | 2000 : 1 |
✓ Good 2000 : 1 — above-average contrast. Good for movie watching in mixed lighting.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Refresh Rate | 56 Hz - 76 Hz |
△ Average 75Hz — minor improvement over 60Hz for scrolling and animations. Not a meaningful gaming upgrade.
|
| Response Time | 5 ms (GtG) |
△ Average 5 ms (GtG) GtG — acceptable for office and casual gaming. Some blur visible in very fast scenes.
|
| Adaptive Sync | - |
| Specification | Value | 💡 What It Means |
|---|---|---|
| Advanced Display Technologies | Panel Technology: - Backlight: W-LED Viewing Angles: 178° / 178° (H / V) MPRT Response: - Dynamic Contrast: - Input Lag: - Screen Coating: Anti-glare/Matte (3H) |
Anti-glare matte coating. 178° wide viewing angles.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Camera | No |
⚠ Limited No built-in camera. An external webcam is needed for video calls.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Audio | 2 x 5 W (watts) | 3.5 mm Audio Out |
3.5mm headphone/audio output — connects wired headphones or routes audio to external speakers.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Ports | 1 x USB 3.2 (Type-C; Gen 2; 10 Gbps; upstream; data only) 1 x USB 3.2 (Type-C; Gen 2; 10 Gbps; upstream; 90W; DP Alt Mode) 1 x USB 3.2 (Type-C; Gen 2; 10 Gbps; downstream; 15W) 4 x USB 3.2 (Type-A; Gen 1; downstream; 5 Gbps) 1 x Ethernet RJ45 2 x HDMI 2.1 1 x DisplayPort 1.4 (HBR3) 1 x 3.5 mm Audio Out High-bandwidth Digital Content Protection (HDCP) |
✓ Good USB-C (single-cable display + data, charging if PD supported). HDMI 2.1 — supports 4K@144Hz or 8K@60Hz bandwidth. DisplayPort 1.4 — full bandwidth for high-refresh PC gaming. Ethernet port — wired network for stable 4K streaming.
|
| Wireless | - |
| Specification | Value | 💡 What It Means |
|---|---|---|
| VESA Mount | 100 x 100 mm |
✓ Good VESA-compatible — fits any standard monitor arm, desk mount, or wall bracket. No proprietary hardware needed.
|
| Height Adjustment | 150 mm |
✓ Good 150 mm height range — excellent ergonomics. Adapts to any chair height or desk setup.
|
| Pivot | No |
⚠ Limited No pivot — cannot rotate to portrait orientation.
|
| Swivel | ±30° |
✓ Good Swivel — rotates left and right without moving the base. Easy screen sharing or multi-person viewing.
|
| Tilt | -5° to +21° |
✓ Good Tilt ±5° — adjustable screen angle reduces neck strain and matches your eye level.
|
| Removable Stand | Yes |
✓ Good Stand detaches cleanly from the panel — mount on any VESA arm or wall bracket without a leftover collar.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Gaming Features | Picture-by-Picture Picture-in-Picture |
| Specification | Value | 💡 What It Means |
|---|---|---|
| Operating System | - |
No smart OS — this is a PC monitor. All input comes from connected computers or consoles.
|
| Smart Features | ComfortView Flicker-free technology KVM Switch Low Blue Light |
✓ Good ComfortView
Flicker-free technology
KVM Switch
Low Blue Light — software features including OSD controls and display calibration tools.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Voltage | 100–240V |
✓ Good Universal or wide-range power supply. Compatible with outlets in the US, UK, EU, and most countries.
|
| Frequency | 50/60Hz |
50/60Hz AC supply — compatible with worldwide power grids including US, UK, EU, and AU.
|
| Average Consumption | 31W |
✓ Good 31W — efficient for a display of this size and capability.
|
| Maximum Consumption | 198W | |
| Standby | 0.3W |
✓ Good 0.3W standby — near-zero idle power. Excellent energy compliance.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Certificates | Energy Star EPEAT Gold RoHS TUV Rheinland Flicker Free Certified TUV Rheinland Low Blue Light Certified |
✓ Good ENERGY STAR — US energy efficiency standard. EPEAT — sustainable electronics certification. RoHS — EU hazardous substances compliant. CE — meets EU safety & electromagnetic standards. TÜV Flicker Free — reduces eye strain from screen flicker. TÜV Low Blue Light — reduces harmful high-energy blue light.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Without Stand Width | 813.26 mm |
Panel dimensions without stand attached. Use for wall-mount space planning.
|
| Without Stand Height | 359.05 mm |
Panel dimensions without stand attached. Use for wall-mount space planning.
|
| Without Stand Depth | 57.5 mm |
Panel dimensions without stand attached. Use for wall-mount space planning.
|
| Without Stand Weight | 7.72 kg |
△ Average 7.72 kg — standard weight for this panel size.
|
| With Stand Width | 813.26 mm |
Overall footprint with stand. Use when planning desk or shelf placement.
|
| With Stand Height | 392.77 mm |
Overall footprint with stand. Use when planning desk or shelf placement.
|
| With Stand Depth | 237.44 mm |
Overall footprint with stand. Use when planning desk or shelf placement.
|
| With Stand Weight | 11.44 kg |
△ Average 11.44 kg — standard weight for this panel size.
|
| Color | Platinum Silver |
Available colour finish for this unit.
|
| Specification | Value | 💡 What It Means |
|---|---|---|
| Temperature | 0°C – 40°C |
Operating environment range. Keep within these limits for reliable long-term performance.
|
| Humidity | 10% – 80% |
Operating environment range. Keep within these limits for reliable long-term performance.
|