The modernistic video compression standard evolved through a mutual team of two organizations on Video Coding known as (JCT-VC) is H.265 (High Efficiency Video Coding Standard). The main goal of H.265 is to provide the double data compression and diminish half bit-rate as contrast to H.264/AVC standard by preserving its equivalent video quality. This work presents a comparative analysis between these two standards. The differences of technical features of both these standards are also represented in this paper. The result of this paper represents the more reduction in size of H.265 video as compared to H.264 video.