NEC NP-P474U vs ViewSonic LS740-4K
 $1,349.99 |  ViewSonic LS740-4K$1,799.99 | |
|---|---|---|
| Key differences | ||
| White light output | 4,700 lm ISO (Bright mode) | 5,000 lm ANSI |
| Native resolution | WUXGA (1920 × 1200) | 4K UHD (3840 × 2160) |
| Throw ratio | 1.2–2:1 | 1.4–2.24:1 |
| HDR formats | — | HLG |
| Light source | Lamp | Laser (phosphor) |
| Fan noise | Max 37 dB(A) · Normal 34 dB(A) · Eco 34 dB(A) | Normal 32 dB(A) · Eco 27 dB(A) |
| Price | $1,349.99 | $1,799.99 |
| Room fit | ||
| Distance to screen | 2.6–4.3 m | 3.1–5.0 m |
| Brightness | ||
| Rated brightness | 4,700 lmDerived | 5,000 lmDerived |
| White light output | 4,700 lm ISO (Bright mode) | 5,000 lm ANSI |
| Display system | ||
| Imaging technology | 3LCD | DLP |
| Chip / panel diagonal | 0.64 in | 0.65 in |
| On-screen resolution | WUXGA (1920 × 1200)Derived | 4K UHD (3840 × 2160)Derived |
| Native resolution | WUXGA (1920 × 1200) | 4K UHD (3840 × 2160) |
| Native aspect | 16:10Derived | 16:9Derived |
| Contrast | ||
| Dynamic contrast | 18,000:1 | 3,000,000:1 |
| Dynamic contrast method | Dynamic iris | — |
| Colour | ||
| Colour bit depth (per channel) | 10 bit | 10 bit |
| HDR | ||
| HDR formats | — | HLG |
| Calibration | ||
| Picture mode memories | 7 | — |
| 3D | ||
| 3D | — | Yes |
| 3D formats | — | Frame packing, Side-by-side, Top-bottom, Frame sequential |
| 3D glasses sync | — | DLP-Link |
| Light source | ||
| Light source | Lamp | Laser (phosphor) |
| Emitter | — | Blue laser + phosphor |
| Lamp power | 305 W | — |
| Replacement lamp | NP44LP | — |
| Light-source life | 4,000 h max · 6,000 h normal · 8,000 h eco | 20,000 h normal · 30,000 h super eco |
| Light output control | Steps | — |
| Warm-up time | 6 s | — |
| Cool-down time | 0 s | — |
| Optics | ||
| Throw ratio | 1.2–2:1 | 1.4–2.24:1 |
| Image size | 30–300 in | 30–300 in |
| Projection offset | — | 124% |
| Zoom | Optical | Optical |
| Zoom ratio | 1.67×Derived | 1.6×Derived |
| Focal length | 17.2–27.7 mm | — |
| Aperture (f-number) | 1.5–2.08 | — |
| Focus | Manual | Manual |
| Autofocus | No | No |
| Vertical lens shift | 0–55% | — |
| Horizontal lens shift | ±15% | — |
| Motorised lens shift | No | — |
| Vertical keystone | 30° | 30° |
| Horizontal keystone | 20° | 30° |
| Auto keystone | No | — |
| Corner correction | 4-corner | — |
| Grid warp | — | Yes |
| Lens material | Plastic | — |
| Motion & gaming | ||
| Max input refresh | — | 1080p: 240 Hz · 2560 × 1440: 120 Hz · 4K UHD: 60 Hz |
| Max refresh at 1080p | — | 240 HzDerived |
| Max refresh at 4K | — | 60 HzDerived |
| Inputs & control | ||
| HDMI inputs | 2 × HDMI | 2 × HDMI 2.0 (HDCP 2.3) |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | — | HDMI 2.0Derived |
| Other video inputs | VGA, HDBaseT | — |
| Max input resolution | WUXGA | 4K UHD |
| Audio inputs | 3.5 mm, RCA | — |
| USB media playback | Yes | — |
| Control ports | RS-232 | RS-232 |
| PJLink | Class 1 | — |
| Control-system drivers | Crestron | — |
| Horizontal scan | 15–100 kHz | 15–135 kHz |
| Vertical scan | 50–120 Hz | 24–240 Hz |
| Smart platform | ||
| Ethernet | Yes | Yes |
| Audio | ||
| Speaker power | 20 W | 15 W |
| Speakers | 1 | 1 |
| Layout | Mono | — |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 420 × 322 × 133 mm | 286 × 216 × 129 mm |
| Weight | 4,700 g | 3,100 g |
| Orientations | Table, Ceiling, + Rear | Table, Ceiling, + Portrait, + 360° |
| Dust filter | Replaceable | None |
| Ingress protection | — | IP6X |
| Sealed optical engine | — | Yes |
| Environment & power | ||
| Operating temperature | 5–40°C | 0–40°C |
| Operating humidity | 20–80%RH | 10–80%RH |
| Altitude | 2,700 m · high-altitude mode | 3,658 m · high-altitude mode |
| Power draw | Max 424 W · Normal 364 W · Eco 286 W | 165 W |
| Standby | 0.14 W | Up to 0.5 W |
| Networked standby | 2 W | — |
| Power supply | — | External adapter |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Max 37 dB(A) · Normal 34 dB(A) · Eco 34 dB(A) | Normal 32 dB(A) · Eco 27 dB(A) |
| Safety & compliance | ||
| Laser class | — | Class 1 |
| Risk group | RG2 | RG2 |
| Hazard distance | — | 1 m |
| Marks | FCC | + CE, FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 3 yr (light source 1 yr) · 🇦🇺 AU 5 yr | 3 yr |
| User manual | https://www.sharp-nec-displays.com/support/webdl/dl_service/data/manual/en/p554u/P554U_manual_ENG_v7.pdf | https://www.viewsonicglobal.com/public/products_download/user_guide/projector/LSD500-4K/LSD500-4K_LS740-4K_UG_ENG.pdf |
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, Quick start guide, + VGA cable, + Lens cap, + Software CD | Power cord, + Power adapter, Remote, Remote batteries, Quick start guide |
| Remote | IR | IR |