- Attenborough.film
- Compare
- GT3500HDR vs PX749-4K
Optoma GT3500HDR vs ViewSonic PX749-4K
What GT3500HDR does better (1) and where PX749-4K wins (4) — every spec side by side.
Why is GT3500HDR better than PX749-4K?
- Contrast ratio (dynamic / claimed)500,000:1 vs 12,000:141.7×
Why is PX749-4K better than GT3500HDR?
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Light source life3,500 h vs 40,000 h11.4×
- Brightness (ANSI / ISO lumens)3,800 lm vs 4,000 lm+5%
- Audio outputNo · GT3500HDR: Yes
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | Laser | Lamp |
| Brightness (ANSI / ISO lumens) | 3,800 lm | 4,000 lm |
| Contrast ratio (dynamic / claimed) | 500,000:1 | 12,000:1 |
| HDR support | Yes | — |
| HDR formats | HLG | — |
| Gaming | ||
| Maximum refresh rate | 120 Hz | — |
| Lens & placement | ||
| Throw ratio | 2:1 | — |
| Throw type | Standard throw (1.0:1 and longer) | — |
| Distance for a 100″ 16:9 image | 4.43 m | — |
| Largest image size | 100″ | — |
| Connectivity | ||
| HDMI inputs | 2 | 2 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | Yes |
| VGA input | No | No |
| Audio output | No | Yes |
| Battery, power & lifetime | ||
| Light source life | 3,500 h | 40,000 h |
| Light source life (eco mode) | — | 20,000 h |
| Design & noise | ||
| Fan noise | 34 dB | — |
| Fan noise (eco mode) | 27 dB | — |
| Weight | — | 3 kg |
| Width | — | 312 mm |
| Height | — | 222 mm |
| Depth | — | 108 mm |
| Colours | — | White |
