There are many different resolutions available for for video, television and cinemas—the table below shows some of them.
| Name | Pixels (width x height) | Aspect Ratio | Notes |
|---|---|---|---|
| Standard Definition (SD) | |||
| 480p / 480i | 720×480 (or 704×480) | 4:3 (approx) | NTSC |
| 576p / 576i | 720×576 (or 704×576) | 4:3 (approx) | PAL |
| High Definition (HDTV) | |||
| 720p | 1280×720 | 16:9 | |
| 1080p / 1080i | 1920×1080 | 16:9 | |
| Ultra High Definition (UHDTV) | |||
| 4K (2160p) | 3840×2160 | 16:9 | Exactly 4 × 1080p |
| 8K (4320p) | 7680×4320 | 16:9 | Exactly 16 × 1080p |
| 8640p | 15360×8640 | 16:9 | Exactly 32 × 1080p |
| Digital Cinema (DCI) | |||
| 2K | 2048 × 1080 | 1.90:1 | The first generation of digital cinema projectors. |
| 4K | 4096 × 2160 | 1.90:1 | 2nd generation digital cinema. |