The following table provides the measured latency information for the 10G/25G Ethernet Subsystem. This is the combined RX and TX latency for the core in the default configuration and does not include latency in the transceiver.
| Core | Total Latency (ns) | TX Latency (ns) | RX Latency (ns) | User Bus Width (bits) | Core Clock Frequency (MHz) |
|---|---|---|---|---|---|
| 10GE MAC + PCS | 188.82 | 67.2 | 121.62 | 64 | 156.25 |
| 25GE MAC + PCS | 80.41 | 29.58 | 50.83 | 64 | 390.625 |
| 10G PCS (BASE-KR) | 332.8 | 172.8 | 160 | 64 | 156.25 |
| 25G PCS | 138.25 | 71.68 | 66.57 | 64 | 390.625 |
|
10G PCS (BASE-R) |
179.2 |
19.2 | 160 | 64 | 156.25 |
| 10GE MAC + PCS | 54.4 | 28.8 | 25.6 | 32 | 312.5 |
| 10GE PCS | 48 | 19.2 | 28.8 | 32 | 312.5 |
|
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