PIXEL DIMENSIONS
Compare 720p, 1080p, 2K, and 4K video
Resolution describes the width and height of each frame. It does not describe bitrate, focus, noise, color, or how much real detail the camera captured.
- 480p854 × 480
Small SD source
- 720p1280 × 720
HD source
- 1080p1920 × 1080
Full HD output
- 4K3840 × 2160
Ultra HD output
| Name | Landscape dimensions | Approximate pixels | Common use |
|---|---|---|---|
| 720p HD | 1280 × 720 | 0.9 million | Small web video and older HD sources |
| 1080p Full HD | 1920 × 1080 | 2.1 million | General web, social, television, and editing |
| 1440p / QHD | 2560 × 1440 | 3.7 million | High-resolution desktop playback and 2K-class delivery |
| 4K UHD | 3840 × 2160 | 8.3 million | 4K displays, online delivery, editing, and projection |
| DCI 4K | 4096 × 2160 | 8.8 million | Digital cinema workflows |
CHOOSE 4K FOR A REASON
Decide whether 4K is the right output
Use the display, edit, crop, and source quality to choose the smallest resolution that meets your need.
- Check the source dimensions
Open the original camera file or earliest export. Clean 1080p is a stronger 4K candidate than a 360p messaging download, even when both can technically be placed in a 4K frame.
- Identify where the video will be used
Choose 4K for a 4K timeline, large display, projection, or extra room for a modest crop. Use 1080p when that already matches the final player.
- Keep the aspect ratio and frame rate
Do not stretch the image or create duplicate frames merely to change the resolution label. Preserve the source shape and recorded motion unless the edit requires a deliberate conversion.
- Review fine detail in motion
Inspect hair, foliage, text, faces, repeated lines, and high-contrast edges. Reject a result that adds halos, flicker, waxy texture, or detail that changes between frames.
- Export with enough bitrate
More pixels need enough data to survive compression. Grain, water, confetti, and fast motion usually need more bitrate than a static scene at the same resolution.
- Keep the untouched original
An AI-upscaled or converted 4K file is a new delivery copy. It should not replace the original recording or high-quality master.
4K QUALITY
Why a 4K file can still look low quality
Output dimensions and visible detail are related, but they are not the same measurement.
Native 4K records detail at capture
A native 4K camera file begins with a 3840 × 2160 or larger capture. Focus, lens quality, lighting, sensor noise, motion, and compression still determine how much of that detail remains useful.
Basic conversion only changes the frame size
A standard converter can place a 720p or 1080p image inside a 4K frame by interpolating pixels. The file becomes larger, but the source does not gain new captured information.
AI upscaling estimates a cleaner enlargement
An AI 4K video upscaler can estimate cleaner edges, reduce some visible compression, and make a low-resolution source easier to use in a 4K workflow. The result is still inferred enhancement, not proof of native 4K capture.
4K EXPORT CHECKLIST
Protect the result after editing
A clean source can become blocky again when the final export is undersized, repeatedly encoded, or uploaded before it is reviewed.
- Export once from the original editing timeline or high-quality master.
- Use 3840 × 2160 for standard 16:9 4K UHD delivery.
- Keep the recorded frame rate unless a deliberate motion conversion is required.
- Use a supported codec and enough bitrate for the scene complexity.
- Review the exported file locally at full size before uploading it.
- Wait for an online platform to finish its 4K processing before judging the upload.
If the source is already blocky, fix the compression problem before making it larger. Use pixelated-video repair for visible squares during motion, or the broader AI video enhancer when low resolution, noise, and compression overlap.
REAL BEFORE & AFTER
Compare a real 1280 × 720 source with 3840 × 2160 output
Play both versions of the same five-second scene to inspect petals, leaf edges, and fine texture. The published result is a verified 4K file, not a resized screenshot.
CASE 01
Flower detail: compressed 720p to Pro 4K
A real five-second flower clip enhanced to 4K with Pro Quality. Compare the red petals, purple leaf edges, and fine texture in the same frames.
- Before
- 1280 × 720
- After
- 3840 × 2160
- Quality
- Pro Quality · 4K
- Look at
- Petals, leaf edges, and texture
Verified Pro Quality result · Same five-second input · Processing record checked
Flower video caseWeb playback rendition derived from the verified Pro 4K output. Review focus: Petals, leaf edges, and texture.