H.265 vs AV1: Which Codec Should You Choose?

Published February 24, 2026 · 7 min read

If you are compressing video in 2026, the decision usually comes down to two codecs: H.265 (HEVC) and AV1. Both are massive improvements over the aging H.264 standard, but they make very different tradeoffs in speed, compatibility, and compression efficiency.

This article compares H.265 and AV1 across every dimension that matters for real-world video compression workflows — from encoding speed and file size to hardware support and licensing.

Head-to-Head Comparison

Compression Efficiency

AV1 consistently produces smaller files at the same visual quality. In standardized tests using VMAF (Video Multi-Method Assessment Fusion) scoring, AV1 delivers equivalent quality to H.265 at roughly 20–30% lower bitrates. For a practical example: a 10 GB H.264 video might compress to 5.5 GB in H.265 and 3.5 GB in AV1 at the same perceived quality.

The advantage is most pronounced at lower bitrates, which makes AV1 particularly attractive for streaming and archival where every megabyte counts. At very high quality settings (CRF 18 or below), the gap narrows since both codecs are preserving nearly all original detail.

Encoding Speed

This is where H.265 has its strongest advantage. Software encoding with x265 (the most common H.265 encoder) is roughly 3–5x faster than SVT-AV1 (the fastest production AV1 encoder) at comparable quality settings.

With hardware acceleration, the gap narrows significantly. NVIDIA's NVENC encoder handles both H.265 and AV1 at similar speeds on RTX 40-series GPUs. Intel Quick Sync on 12th-gen and newer processors also supports both codecs. If your GPU supports hardware AV1 encoding, the speed difference may be negligible for your workflow.

For batch processing large video libraries, encoding speed adds up quickly. A library of 1,000 videos that takes 8 hours to process in H.265 might take 30–40 hours in AV1 with software encoding. Hardware acceleration brings this closer to 10–12 hours, but H.265 hardware encoding would finish the same batch in 6–8 hours.

Hardware Support and Playback Compatibility

H.265 Compatibility

H.265 decoding is supported on essentially every device manufactured since 2017:

• All iPhones since iPhone 6 (2014)
• All Android phones since 2016
• All Apple Silicon and Intel 6th-gen+ processors
• All smart TVs from 2017 onward
• Windows 10/11, macOS, Linux (VLC, mpv, etc.)
• Major browsers: Safari (all), Chrome/Edge (partial, hardware-dependent)

The one notable gap is browser support. Chrome and Firefox do not bundle H.265 software decoding due to licensing costs. Playback works if the user's hardware has an H.265 decoder, which most modern PCs and phones do. For local file playback, this is a non-issue.

AV1 Compatibility

AV1 playback support is younger but growing rapidly:

• All modern browsers (Chrome 70+, Firefox 67+, Edge, Safari 17+)
• Android 12+ with hardware decode support
• iPhone 15 Pro and later
• NVIDIA RTX 30-series+ (hardware decode)
• Intel 11th-gen+ (hardware decode)
• Most 2024+ smart TVs

If your videos will be played back on older devices (pre-2022 TVs, older Android phones, legacy media players), H.265 is the safer choice. If playback is primarily on modern computers and phones, AV1 is well-supported.

Licensing and Cost

H.265 carries royalty obligations managed by multiple patent pools (MPEG LA and Access Advance). For end users compressing their own videos, this has no direct cost impact — the licensing fees apply to hardware manufacturers and streaming platforms. However, it has slowed H.265 adoption in web browsers and open-source software.

AV1 is royalty-free by design. The Alliance for Open Media created it specifically to avoid the licensing fragmentation that plagued H.265. This is why every major browser ships with AV1 support and why streaming platforms (YouTube, Netflix, Twitch) have adopted AV1 aggressively for delivery.

For personal and business use — compressing your own video library, recompressing security footage, preparing files for upload — licensing has no practical impact on your codec choice. Choose based on performance characteristics, not patent concerns.

When to Choose H.265

• Broad device compatibility — Your videos need to play on older TVs, media players, or pre-2022 devices.
• Fast batch processing — You have thousands of files and want the fastest possible turnaround.
• No modern GPU — Your hardware lacks AV1 encoding support, making software-only AV1 impractically slow.
• Good enough savings — 40–50% compression over H.264 meets your storage needs.

When to Choose AV1

• Maximum compression — You need the absolute smallest files possible (55–70% savings over H.264).
• Web delivery — Your videos will be streamed in browsers, where AV1 has universal support.
• Long-term archival — You are building an archive that will be stored for years and want maximum space efficiency.
• Modern hardware available — You have an RTX 40-series, Intel Arc, or AMD RX 7000+ GPU for hardware-accelerated encoding.

The Verdict

For most users in 2026, H.265 is the practical default. It offers excellent compression gains over H.264, near-universal playback support, and fast encoding — especially with hardware acceleration. If you are compressing a large video library and want a safe, efficient codec that works everywhere, H.265 is the answer.

AV1 is the future-forward choice when you need maximum compression, your playback targets are modern, and you have the encoding hardware (or patience) for it. As hardware AV1 encoding becomes standard across all GPUs, the speed gap will continue to close, and AV1 will likely become the default recommendation within the next few years.

The best approach for many workflows is to use both: H.265 for day-to-day compression where speed matters, and AV1 for deep archival where maximum savings justify longer encoding times. VideoRecompress Studio includes presets for both codecs, so switching between them is a one-click decision.