The table below details the expected peak achievable UDP/TCP throughput numbers for a Quad Serial Peripheral Interface (QSPI)/Serial Peripheral Interface (SPI) master clock rate of 24 MHz, and where the networking stack executing on the host is not a limiting factor. These numbers are projected using measured raw QSPI/SPI master packet transmission rates.

Table 1. UDP/TCP throughputs
Symbol Parameter Min. Nom. Max. Units Note
tUDP,TX,QSPI Max UDP TX mode throughput over QSPI 56 Mbps
tUDP,RX,QSPI Max UDP RX mode throughput over QSPI 61 Mbps
tUDP,TX,SPIM Max UDP TX mode throughput over SPIM 14 Mbps
tUDP,RX,SPIM Max UDP RX mode throughput over SPIM 14 Mbps
tTCP,TX,QSPI Max TCP TX mode throughput over QSPI 40 Mbps
tTCP,RX,QSPI Max TCP RX mode throughput over QSPI 42 Mbps
tTCP,TX,SPIM Max TCP TX mode throughput over SPIM 12 Mbps
tTCP,RX,SPIM Max TCP RX mode throughput over SPIM 12 Mbps
Note: Measured throughputs for various usage profiles can be found in nRF Connect SDK - nRF70 Series Usage profiles.