The following table provides the measured latency information for the 1G/10G/25G Ethernet Subsystem.
| Core | Core Configuration | Latency (ns) | User Bus Width (bits) | Core Clock Frequency (MHz) |
|---|---|---|---|---|
| 32-bit MAC + PCS/PMA | 10G mode TX latency | 28.8 | 32 | 312.5 |
| 1G mode TX latency | 632 | 32 | 125 | |
| 10G mode RX latency | 25.6 | 32 | 312.5 | |
| 1G mode TX latency | 304 | 32 | 125 | |
| 64-bit MAC + PCS/PMA | 25G mode TX latency | 77 | 64 | 390.625 |
| 10G mode TX latency | 192 | 64 | 156.25 | |
| 1G mode TX latency | 864 | 64 | 125 | |
| 25G mode RX latency | 113 | 64 | 390.625 | |
| 10G mode RX latency | 281 | 64 | 156.25 | |
| 1G mode RX latency | 568 | 64 | 125 | |
| 32-bit PCS/PMA | 10G mode TX latency | 19.2 | 32 | 312.5 |
| 1G mode TX latency | 80 | 8 | 125 | |
| 10G mode RX latency | 19.2 | 32 | 312.5 | |
| 1G mode RX latency | 88 | 8 | 125 |