Video coding H.265: Video with the same time and resolution takes up less storage.
Video coding H.264: Video with the same time and resolution takes up about twice as much space as video coding H.265. ..
Image quality:
Video coding H.265: Same storage space, clearer picture quality.
Video coding H.264: Same storage space, low image quality.
Extended data:
H.265 is a new video coding standard formulated by ITU-T VCEG after H.264. H.265 standard keeps some original technologies and improves some related technologies around the existing video coding standard H.264. The new technology uses advanced technology to improve the relationship among code stream, coding quality, delay and algorithm complexity, and realize the optimal setting.
The specific research contents include: improving compression efficiency, improving robustness and error recovery ability, reducing real-time delay, reducing channel acquisition time and random access delay, and reducing complexity. H.264 can transmit SD digital images at a speed lower than 1Mbps due to algorithm optimization. H.265 can realize the transmission of 720P ordinary high-definition audio and video with the transmission speed of 1~2Mbps.
Baidu encyclopedia -H.265