Memory Bandwidth - 2020.2 English

H.264/H.265 Video Codec Unit v1.2 Solutions LogiCORE IP Product Guide (PG252)

Document ID
PG252
Release Date
2020-11-24
Version
2020.2 English

The decoder memory bandwidth depends on frame rate, resolution, color depth, chroma format and Decoder profile. The LogiCORE™ IP provides an estimate of decoder bandwidth based on the video parameters selected in the GUI.

Xilinx recommends using the fastest DDR4 memory interface possible. Specifically, the 8x8-bit memory interface is more efficient than 4x16-bit memory interface because the x8 mode has four bank groups, whereas the x16 mode has only two and DDR4 allows for simultaneous bank group access. For more information, see Xilinx Answer: 71209.