Streams of 4K UHD at 60 Hz consume significant amounts of the bandwidth of the external memory interfaces and significant amounts of the Arm® AMBA® AXI4 bus bandwidth between the Processing System and the Programmable Logic.
For simultaneous encoder and decoder operation (including transcode use cases), consider using both an PS Memory Controller and dedicated an VCU Memory Controller.
| Number of stream | Single stream | Two stream | Four stream |
|---|---|---|---|
| CLB LUT (230400) | 16224 | 18302 | 21178 |
| CLB Registers (460800) | 21098 | 24175 | 30339 |
| Carry8 (28800) | 1316 | 1417 | 1620 |
| F7 Muxes (11520) | 105 | 105 | 119 |
| F8 Muxes (57600) | 0 | 0 | 12 |
| BLOCK RAM TILE (312) | 8 | 8 | 8 |
| DSP's (1728) | 0 | 0 | 0 |
| HPIOBDIFFINBUF (192) | 0 | 0 | 0 |
| BITSLICE_RX_TX (416) | 0 | 0 | 0 |
| GLOBAL CLOCK BUFFERS (544) | 0 | 0 | 0 |
| PLL (16) | 0 | 0 | 0 |
| MMCM (8) | 0 | 0 | 0 |