H.264 vs H.265: Which Codec Should You Use?
The two most important video codecs compared side by side — file size, quality, compatibility, encoding speed, and when to use each one. Plus AV1 and VP9 explained so you understand the full picture.
The short answer
Use H.264 when...
- Uploading to any platform (YouTube, Instagram, TikTok)
- You need fastest encoding speed
- Compatibility with any device is important
- You're delivering files to clients
Use H.265 when...
- Archiving footage to save storage space
- Working with 4K+ content (large files)
- Your target devices are modern (post-2015)
- You need smallest possible files at high quality
What is a video codec?
A codec (coder/decoder) is the algorithm that compresses raw video into a manageable file and decompresses it for playback. Without codecs, one minute of 1080p video would be about 10 GB — completely impractical for storage, streaming, or sharing.
Think of codecs like different file formats for video. Just as you choose between PNG and JPG for images based on quality vs. file size tradeoffs, you choose between H.264, H.265, and AV1 for video.
Codec ≠ container format
People often confuse codecs with container formats. The codec is how the video stream is compressed (H.264, H.265). The containeris the file wrapper that holds the video + audio + metadata (MP4, MOV, MKV). An MP4 file can contain H.264 or H.265 video — the container doesn't determine the codec.
Is H.264 or H.265 better for YouTube?
Upload H.264. YouTube accepts H.265, but H.264 uploads process significantly faster, work on every device, and get the exact same final quality — because YouTube re-encodes everything you upload into its own streaming codecs (AV1 and VP9) anyway. Your upload codec only affects how fast your video goes live, not how it looks to viewers. These recommendations mirror YouTube's own upload encoding settings.
Recommended YouTube export settings
- CodecH.264, High Profile
- 1080p SDR bitrate8 Mbps (30fps) · 12 Mbps (60fps)
- 4K SDR bitrate35–45 Mbps (30fps) · 53–68 Mbps (60fps)
- AudioAAC-LC, 384 kbps stereo
- Container.MP4
Tip from experience: uploading in 4K — even upscaled from a 1080p timeline — gets you YouTube's higher-bitrate VP9/AV1 treatment, which visibly reduces compression artifacts versus a native 1080p upload.
H.264 or H.265 for TikTok and Instagram?
Upload H.264. TikTok and Instagram re-encode every video when it lands on their servers, so your source codec never reaches the viewer unchanged — what it changes is how quickly the upload processes and how likely the platform is to accept it. H.264 High Profile in an MP4 is the safest combination; H.265 uploads can be slower to process with no visible upside.
Vertical phone footage is the one place H.265 earns its keep: shooting 4K in HEVC keeps files manageable on the device itself. If those clips then need to reach a platform or an editor that prefers H.264, convert them as a batch in Formatif Pro instead of exporting clip by clip.
H.264 vs H.265 for 1080p: is H.265 worth it?
At 1080p, usually not. A 5-minute 1080p video is about 563 MB in H.264 vs 281 MB in H.265 — real savings, but 281 MB costs you 2–3× longer encodes and compatibility headaches on older phones, TVs, and some platforms. H.265 earns its keep at 4K and above, where the same 5 minutes is ~1.3 GB vs ~650 MB and the absolute savings are enormous. Rule of thumb: 1080p for sharing → H.264; 4K for keeping → H.265.
H.264 vs H.265: side-by-side comparison
| Feature | H.264 (AVC) | H.265 (HEVC) |
|---|---|---|
| Released | 2003 | 2013 |
| Full name | Advanced Video Coding | High Efficiency Video Coding |
| Compression efficiency | Baseline (1×) | ~2× better than H.264 |
| File size (same quality) | Larger | ~50% smaller |
| Encoding speed | Fast | 2-3× slower |
| Decoding hardware needed | Any device (2005+) | Modern devices (2015+) |
| Platform upload support | Universal | Most platforms, slower processing |
| 4K support | Yes, but large files | Yes, practical file sizes |
| 8K support | Impractical | Yes |
| Royalty status | Patent-encumbered | Patent-encumbered (more complex) |
| Best for | Uploading, sharing, compatibility | Archiving, 4K+, storage savings |
Real-world file size comparison
H.264 vs H.265 file size: how much smaller is H.265?
H.265 is roughly half the size of H.264 at the same visual quality. Here's what the file size difference looks like for a typical 5-minute video at various resolutions:
| Resolution | H.264 (15 Mbps) | H.265 (7.5 Mbps) | Space Saved |
|---|---|---|---|
| 1080p | ~563 MB | ~281 MB | ~282 MB (50%) |
| 4K UHD | ~1.3 GB | ~650 MB | ~650 MB (50%) |
| 8K UHD | ~5.6 GB | ~2.8 GB | ~2.8 GB (50%) |
Based on typical quality-preserving bitrates. Actual file sizes vary by content complexity — fast motion needs higher bitrates.
The key tradeoff: time vs. space
H.265 takes roughly 2-3× longer to encodethan H.264 at the same resolution. For a 5-minute video, that might mean 30 seconds vs. 90 seconds. For a 2-hour 4K film, it could mean 1 hour vs. 3 hours. If you're archiving a large library, the storage savings are worth the time. If you're exporting quick social media clips, stick with H.264.
What about AV1 and VP9?
H.264 and H.265 aren't the only codecs. Two others are increasingly important:
VP9
Google's open-source codec, comparable to H.265 in efficiency. YouTube uses VP9 for all videos above 1080p (and popular 1080p videos). You don't need to export in VP9 — YouTube converts your upload automatically. Not widely supported outside Google's ecosystem.
AV1
The newest major codec (2018), ~30% more efficient than H.265 and completely royalty-free. YouTube, Netflix, and modern browsers increasingly use AV1. The main drawback: encoding is very slow (5-10× slower than H.264). AV1 is the future, but H.264 remains the practical present for most creators.
How to choose: a simple decision guide
Are you uploading to YouTube, Instagram, or TikTok?
→ Use H.264. Universal compatibility, fastest platform processing.
Are you archiving footage for long-term storage?
→ Use H.265. Half the storage space at identical quality.
Are you delivering files to a client?
→ Use H.264 unless they specifically request H.265. Don't assume their software can decode H.265.
Are you working with 4K or 8K footage?
→ Use H.265. H.264 file sizes become impractical at 4K+.
Do you need the absolute smallest file at the best quality?
→ Use H.265 (or AV1 if encoding time doesn't matter).
Are you unsure about your audience's devices?
→ Use H.264. It plays on everything. H.265 requires relatively modern hardware.
Encoder & compatibility questions, answered
Medal: H.264 or H.265 for game clips?
For Medal clips you share to Discord, socials, or friends: use H.264. Clips stay small anyway (seconds, not hours), and H.264 plays instantly everywhere with no “codec missing” errors on your viewers' devices. Switch to H.265 only if you archive huge clip libraries locally and every machine you own is modern.
| Medal use case | Codec | Why |
|---|---|---|
| Share to Discord, Reddit, socials | H.264 | Plays instantly, accepted everywhere |
| Local archive of hundreds of clips | H.265 | ~50% less disk space |
| Edit or preview on Windows | H.264 | Windows needs a separate HEVC extension to decode H.265 |
Already recorded a library in H.265 and now the clips won't upload or preview? Re-encode them to H.264 before sharing. Doing that file by file in a converter is tedious — Formatif Pro converts the whole clip folder in one pass on your own machine. If the blocker is Discord's upload size limit rather than the codec, see our Medal & ShadowPlay compression guide.
x264 vs x265: what's the difference from H.264 vs H.265?
Same codecs, different layer. H.264/H.265 are the codec standards; x264/x265are the free, open-source encoder programs (used inside HandBrake, FFmpeg, and OBS) that implement them. When someone compares “264 vs 265 encoding,” they mean encoding speed and efficiency in practice: x265 gives ~40–50% smaller files than x264 at the same quality but encodes 2–3× slower, and the quality gap widens or shrinks with the preset you choose (slower preset = smaller file, both encoders).
H.264 levels: L4.1 vs L5 — what should you pick?
H.264 levels cap the maximum resolution, bitrate, and decoding load a file demands. Level 4.x is the 1080p era (Blu-ray discs are Level 4.1); Level 5.x is the 4K era. Practical rule: export 1080p at Level 4.1 for maximum compatibility (plays on old iPhones, smart TVs, and browsers), and step up to Level 5.0/5.1 only for 4K. Setting a higher level than needed doesn't improve quality — it just locks out older devices.
H.264 basics: is it a codec, and does it handle audio?
Yes — H.264 (also called AVC, released 2003) is a video codec, not a file type. And it handles video only: if you see “H.264 audio,” what's meant is the audio track paired with H.264 video — almost always AAC inside an MP4 container. On resolutions: H.264 officially scales from 144p to 4K and beyond, but in practice use it up to 4K and switch to H.265 or AV1 past that.
Codec FAQs
What is the difference between H.264 and H.265?
H.265 gives the same quality at about half the file size — but H.264 plays on everything while H.265 needs modern hardware. H.264 (2003) vs H.265 (2013).
Should I use H.264 or H.265?
H.264 for uploading anywhere and delivering to clients; H.265 for archiving footage and 4K+ where storage savings are huge.
Is H.265 better than H.264?
Technically yes for compression — but H.264 wins on compatibility and upload speed. For social uploads, H.264 remains the practical choice.
Is H.264 or H.265 better for YouTube?
H.264. Faster processing, universal compatibility, identical final quality — YouTube re-encodes everything to AV1/VP9 regardless.
Does YouTube support H.265?
Yes, but H.264 uploads process much faster. Upload H.264 High Profile MP4 with AAC audio.
Is H.265 worth it for 1080p?
Usually not — ~280 MB saved per 5 min isn't worth 2–3× slower encodes plus compatibility risk. H.265 pays off at 4K+.
Should I use H.264 or H.265 for Medal clips?
H.264 for shared clips — small files anyway, instant playback everywhere. H.265 only for local archives on modern machines.
What is the difference between x264 and x265?
The encoder programs (in HandBrake/FFmpeg/OBS) implementing H.264/H.265. x265 files are ~40–50% smaller but encode 2–3× slower.
What H.264 level should I use: 4.1 or 5?
4.1 for 1080p (plays on everything, including old devices); 5.0/5.1 only for 4K. Higher level ≠ better quality.
Does H.264 include audio?
No — video only. Audio paired with it is almost always AAC in an MP4 container.
What is AV1 codec?
The royalty-free 2018 codec, ~30% more efficient than H.265, used by YouTube and Netflix. Encoding is still 5–10× slower than H.264.
Continue learning
Video Quality & Bitrate →
How bitrate and compression affect quality. Why YouTube reduces quality.
Platform Upload Specs →
Optimal export settings for Instagram, YouTube, and TikTok.
Video Resolutions & Pixel Counts →
1080p vs 4K dimensions and file sizes — pick the right resolution before you pick the codec.
Need to convert between codecs in batch?
Formatif Pro lets you batch-convert entire folders between H.264 and H.265 — offline, on your computer, with full control over bitrate and quality. No subscription required.