H.265 offers massively improved compression over H.264. The newer codec can achieve nearly double the compression of its predecessor. With H.265, a video of the same apparent visual quality would take up only half as much space.

Everything you need to know about ProHD Streaming Media Encoder
The professional ProHD Encoders for streaming live and on demand video. The portable ProHD Encoders are ideal for video streaming for a variety of video input types