diff --git a/homeassistant/components/cpuspeed/sensor.py b/homeassistant/components/cpuspeed/sensor.py
index e8e8ea13990..376a2422901 100644
--- a/homeassistant/components/cpuspeed/sensor.py
+++ b/homeassistant/components/cpuspeed/sensor.py
@@ -1,8 +1,6 @@
 """Support for displaying the current CPU speed."""
 from __future__ import annotations
 
-from typing import Any
-
 from cpuinfo import cpuinfo
 import voluptuous as vol
 
@@ -58,38 +56,35 @@ async def async_setup_entry(
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up the platform from config_entry."""
-    async_add_entities([CPUSpeedSensor("CPU Speed")], True)
+    async_add_entities([CPUSpeedSensor(entry)], True)
 
 
 class CPUSpeedSensor(SensorEntity):
     """Representation of a CPU sensor."""
 
-    _attr_native_unit_of_measurement = FREQUENCY_GIGAHERTZ
     _attr_icon = "mdi:pulse"
+    _attr_name = "CPU Speed"
+    _attr_native_unit_of_measurement = FREQUENCY_GIGAHERTZ
 
-    def __init__(self, name: str) -> None:
+    def __init__(self, entry: ConfigEntry) -> None:
         """Initialize the CPU sensor."""
-        self._attr_name = name
-        self.info: dict[str, Any] | None = None
-
-    @property
-    def extra_state_attributes(self) -> dict[str, float | str | None] | None:
-        """Return the state attributes."""
-        if self.info is None:
-            return None
-
-        attrs = {
-            ATTR_ARCH: self.info["arch_string_raw"],
-            ATTR_BRAND: self.info["brand_raw"],
-        }
-        if HZ_ADVERTISED in self.info:
-            attrs[ATTR_HZ] = round(self.info[HZ_ADVERTISED][0] / 10 ** 9, 2)
-        return attrs
+        self._attr_unique_id = entry.entry_id
 
     def update(self) -> None:
         """Get the latest data and updates the state."""
-        self.info = cpuinfo.get_cpu_info()
-        if self.info is not None and HZ_ACTUAL in self.info:
-            self._attr_native_value = round(float(self.info[HZ_ACTUAL][0]) / 10 ** 9, 2)
+        info = cpuinfo.get_cpu_info()
+
+        if info is not None and HZ_ACTUAL in info:
+            self._attr_native_value = round(float(info[HZ_ACTUAL][0]) / 10 ** 9, 2)
         else:
             self._attr_native_value = None
+
+        if info is not None:
+            self._attr_extra_state_attributes = {
+                ATTR_ARCH: info["arch_string_raw"],
+                ATTR_BRAND: info["brand_raw"],
+            }
+            if HZ_ADVERTISED in info:
+                self._attr_extra_state_attributes[ATTR_HZ] = round(
+                    info[HZ_ADVERTISED][0] / 10 ** 9, 2
+                )