diff --git a/examples/ethernet/iperf/sdkconfig.defaults b/examples/ethernet/iperf/sdkconfig.defaults
index 353d4cce4..9ef48f281 100644
--- a/examples/ethernet/iperf/sdkconfig.defaults
+++ b/examples/ethernet/iperf/sdkconfig.defaults
@@ -12,8 +12,4 @@ CONFIG_FREERTOS_USE_STATS_FORMATTING_FUNCTIONS=y
 
 CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 
-# ESP32-specific
-CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
-CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ=240
-
 CONFIG_ESP_NETIF_TCPIP_ADAPTER_COMPATIBLE_LAYER=n
diff --git a/examples/ethernet/iperf/sdkconfig.defaults.esp32 b/examples/ethernet/iperf/sdkconfig.defaults.esp32
new file mode 100644
index 000000000..edc45ae61
--- /dev/null
+++ b/examples/ethernet/iperf/sdkconfig.defaults.esp32
@@ -0,0 +1,2 @@
+# ESP32-specific
+CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
diff --git a/examples/ethernet/iperf/sdkconfig.defaults.esp32s2 b/examples/ethernet/iperf/sdkconfig.defaults.esp32s2
new file mode 100644
index 000000000..5ba18ce95
--- /dev/null
+++ b/examples/ethernet/iperf/sdkconfig.defaults.esp32s2
@@ -0,0 +1,2 @@
+# ESP32-S2-specific
+CONFIG_ESP32S2_DEFAULT_CPU_FREQ_240=y