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VP8 vs VP9: Compression, Quality, and Browser Support

Published on April 19, 2026

VP9 achieves roughly 50% bitrate savings over VP8 at equivalent visual quality. Both are royalty-free video codecs developed by Google, primarily used in WebM containers. VP8 launched in 2010, VP9 followed in 2013, and VP9 is what YouTube uses for most of its streaming today.

Compression Efficiency

VP8 uses simple block-based prediction similar to H.264, processing frames in 16x16 macroblocks. VP9 introduced superblocks up to 64x64 pixels, more prediction modes, and better motion compensation. A 1080p stream that requires 5 Mbps in VP8 typically looks equivalent at 2.5-3 Mbps in VP9. The savings become even more significant at 4K, where VP9 was specifically designed to perform well.

Quality at Higher Resolutions

VP8 handles 720p content well but starts showing visible artifacts at 1080p unless given generous bitrates. VP9 maintains sharp detail and clean gradients at 1080p and 4K even at moderate bitrates. This is why YouTube transitioned from VP8 to VP9 for high-resolution content -- the bandwidth savings at scale are enormous.

Encoding and Decoding Speed

VP8 encodes faster due to its simpler algorithms, making it suitable for real-time applications like video calls via WebRTC. VP9 encoding is significantly slower and more CPU-intensive. However, VP9 decoding is only marginally harder than VP8, and most modern devices include hardware VP9 decoders. Over 2 billion devices support VP9 hardware decoding as of 2025.

Browser and Platform Support

Both codecs have strong browser support through Chrome, Firefox, Edge, and Opera. Safari added VP9 support starting in macOS Big Sur and iOS 14. VP8 is still used in WebRTC for video conferencing (Google Meet, Discord) due to its low encoding latency. VP9 dominates in streaming and on-demand video delivery.

When to Use Each

  • VP8: Real-time communication (WebRTC), low-latency encoding, legacy device support.
  • VP9: Video streaming, YouTube uploads, bandwidth-efficient delivery of 1080p+ content.
  • Neither: If you need maximum compatibility across all platforms, MP4 with H.264 is still the safest format.

To convert videos to the widely compatible WebM format (which uses VP9), try our video to WebM converter. For maximum compatibility, use the video to MP4 converter.

Related reading: VP9 vs H.265 compares VP9 to its proprietary rival, AV1 vs VP9 covers Google's next-gen codec successor, H.264 vs VP9 compares the two mainstream web codecs, and MP4 vs WebM covers the container formats these codecs live in.