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H.264 vs. H.265: Video codecs compared


H.264, also known as Advanced Video Coding (AVC), has long been the dominant video compression standard. Today, most live streaming platforms use H.264 for playback, and more than 90 percent of video industry developers still choose H.264 as their codec. But in recent years, H.265 or High Efficiency Video Coding (HEVC) has generated a lot of buzz.


Not sure which video compression standard your production should use - H.264 or H.265? Read on to learn the differences between these two codecs.


H.265 versus H.264

The H.265 codec compresses information more efficiently than H.264, making video-quality equivalent files half the size of H.264.


The benefits of this are twofold: H.265 video files don't take up as much storage space and require less bandwidth to stream. This is a big advantage, especially when storing and streaming 4K video and other high-resolution video content.


The reason for this difference lies in the way each video compression standard handles frames. h.264 uses so-called macroblocks, which are processing units that span from 4×4 to 16×16 pixels. h.265 uses a newer block structure called the Coding Tree Unit (CTU), which can handle sizes up to 64×64 pixels.


H.264 vs. H.265: Which is better?

The whole point of H.265 is to succeed H.264. so why isn't everyone using it?


The efficiencies offered by H.265 require more processing power. Not only does it require advanced hardware to create H.265 video files, it also requires decoding them for playback. This limits the ability to benefit from the superior efficiency of H.265 to only those with the right equipment. That's why H.264 remains the codec of choice for many.


Still, H.265 encoding has many advantages in today's video applications, especially those involving 4K. In addition, the number of content consumers with H.265-enabled hardware continues to grow, and it's only a matter of time before H.265 achieves its goals and replaces H.264.

Orivision H.264 video encoders

Orivision ZY-EH408 8 channel video encoder-H.264 8 Channels 4K@30 HDMI Video Encoder 1U

Orivision ZY-EH404 H.264 4 Channels 4K@30 H.264 HDMI Video Encoder

Orivision ZY-EHC001 H.264 1080P@60 HDMI/CVBS Video Encoder

Orivision ZY-EQ501 H.264 1080P@60 HDMI/CVBS/VGA/Ypbpr/SDI Video Encoder

It’s Also a Decoder

Orivision DH931 H.265 hardware decoder-H.265 4K@30 IP To HDMI/CVBS/VGA Decoder supports decoding up to 4K H.264/ H.265 IP streams and decode the streams to output VGA and 4k HDMI.

Orivision ZY-DS931 SDI decoder - H.265 1080P@60 IP To SDI Video Decoder With Loop Out

Orivision ZY-DH941 IP media gateway - H.265 Dual Ethernet IP To IP Video Decoder And Video Media Gateway

Orivision ZY-DH931 multi channel decoder -1U H.265 1-4 Channels HDMI/SDI/VGA/CVBS Video Decoder 1RU

Orivision ZY-DH921 16 channel decoder - H.265 1-16 Channels HDMI/SDI/VGA/CVBS Video Decoder 3RU


Which ORIVISION video encoders support H.265?

ORIVISION's EH901 series H.265 encoder is an Ultra High Definition (UHD) video encoding device that supports up to 1080P60 video inputs, H.265 (HEVC) / H.264 high-performance encoding, and wired network transmission. It also supports SRT/RTMP/ RTMPS/HLS/UDP/RTSP/Onvif/ and other protocols.


Orivision H.265 video encoders

Orivision ZY-ES901 SDI IP streaming encoder

Orivision ZY-EV901 VGA video encoder

Orivision ZY-EH901 H.265 streaming encoder

Orivision ZY-EH311 H.265 1080P@30 HDMI Video Encoder With Loop Out

Orivision ZY-EHV101 H.265 1080P@60 HDMI/VGA Video Encoder With Loop Out

Orivision ZY-EH501 H.265 4K@30 HDMI Video Encoder

Orivision ZY-EH1201 Mini H.265 1080P@60 HDMI Video Encoder With Loopout

It can be widely used in HD video programme production, HD UHD live video broadcasting, HD application solutions, HD video Internet point-to-point transmission, HD large screen display projects, HD video network recording and storage, HDMI input usage, etc.

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