diff --git a/tests/component_tests/psram/test_psram.py b/tests/component_tests/psram/test_psram.py
new file mode 100644
index 0000000000..3e40a8d192
--- /dev/null
+++ b/tests/component_tests/psram/test_psram.py
@@ -0,0 +1,194 @@
+"""Tests for PSRAM component."""
+
+from typing import Any
+
+import pytest
+
+from esphome.components.esp32.const import (
+    KEY_VARIANT,
+    VARIANT_ESP32,
+    VARIANT_ESP32C2,
+    VARIANT_ESP32C3,
+    VARIANT_ESP32C5,
+    VARIANT_ESP32C6,
+    VARIANT_ESP32H2,
+    VARIANT_ESP32P4,
+    VARIANT_ESP32S2,
+    VARIANT_ESP32S3,
+)
+import esphome.config_validation as cv
+from esphome.const import CONF_ESPHOME, PlatformFramework
+from tests.component_tests.types import SetCoreConfigCallable
+
+UNSUPPORTED_PSRAM_VARIANTS = [
+    VARIANT_ESP32C2,
+    VARIANT_ESP32C3,
+    VARIANT_ESP32C5,
+    VARIANT_ESP32C6,
+    VARIANT_ESP32H2,
+]
+
+SUPPORTED_PSRAM_VARIANTS = [
+    VARIANT_ESP32,
+    VARIANT_ESP32S2,
+    VARIANT_ESP32S3,
+    VARIANT_ESP32P4,
+]
+
+
+@pytest.mark.parametrize(
+    ("config", "error_match"),
+    [
+        pytest.param(
+            {},
+            r"PSRAM is not supported on this chip",
+            id="psram_not_supported",
+        ),
+    ],
+)
+@pytest.mark.parametrize("variant", UNSUPPORTED_PSRAM_VARIANTS)
+def test_psram_configuration_errors_unsupported_variants(
+    config: Any,
+    error_match: str,
+    variant: str,
+    set_core_config: SetCoreConfigCallable,
+) -> None:
+    set_core_config(
+        PlatformFramework.ESP32_IDF,
+        platform_data={KEY_VARIANT: variant},
+        full_config={CONF_ESPHOME: {}},
+    )
+    """Test detection of invalid PSRAM configuration on unsupported variants."""
+    from esphome.components.psram import CONFIG_SCHEMA
+
+    with pytest.raises(cv.Invalid, match=error_match):
+        CONFIG_SCHEMA(config)
+
+
+@pytest.mark.parametrize("variant", SUPPORTED_PSRAM_VARIANTS)
+def test_psram_configuration_valid_supported_variants(
+    variant: str,
+    set_core_config: SetCoreConfigCallable,
+) -> None:
+    set_core_config(
+        PlatformFramework.ESP32_IDF,
+        platform_data={KEY_VARIANT: variant},
+        full_config={
+            CONF_ESPHOME: {},
+            "esp32": {
+                "variant": variant,
+                "cpu_frequency": "160MHz",
+                "framework": {"type": "esp-idf"},
+            },
+        },
+    )
+    """Test that PSRAM configuration is valid on supported variants."""
+    from esphome.components.psram import CONFIG_SCHEMA, FINAL_VALIDATE_SCHEMA
+
+    # This should not raise an exception
+    config = CONFIG_SCHEMA({})
+    FINAL_VALIDATE_SCHEMA(config)
+
+
+def _setup_psram_final_validation_test(
+    esp32_config: dict,
+    set_core_config: SetCoreConfigCallable,
+    set_component_config: Any,
+) -> str:
+    """Helper function to set up ESP32 configuration for PSRAM final validation tests."""
+    # Use ESP32S3 for schema validation to allow all options, then override for final validation
+    schema_variant = "ESP32S3"
+    final_variant = esp32_config.get("variant", "ESP32S3")
+    full_esp32_config = {
+        "variant": final_variant,
+        "cpu_frequency": esp32_config.get("cpu_frequency", "240MHz"),
+        "framework": {"type": "esp-idf"},
+    }
+
+    set_core_config(
+        PlatformFramework.ESP32_IDF,
+        platform_data={KEY_VARIANT: schema_variant},
+        full_config={
+            CONF_ESPHOME: {},
+            "esp32": full_esp32_config,
+        },
+    )
+    set_component_config("esp32", full_esp32_config)
+
+    return final_variant
+
+
+@pytest.mark.parametrize(
+    ("config", "esp32_config", "expect_error", "error_match"),
+    [
+        pytest.param(
+            {"speed": "120MHz"},
+            {"cpu_frequency": "160MHz"},
+            True,
+            r"PSRAM 120MHz requires 240MHz CPU frequency",
+            id="120mhz_requires_240mhz_cpu",
+        ),
+        pytest.param(
+            {"mode": "octal"},
+            {"variant": "ESP32"},
+            True,
+            r"Octal PSRAM is only supported on ESP32-S3",
+            id="octal_mode_only_esp32s3",
+        ),
+        pytest.param(
+            {"mode": "quad", "enable_ecc": True},
+            {},
+            True,
+            r"ECC is only available in octal mode",
+            id="ecc_only_in_octal_mode",
+        ),
+        pytest.param(
+            {"speed": "120MHZ"},
+            {"cpu_frequency": "240MHZ"},
+            False,
+            None,
+            id="120mhz_with_240mhz_cpu",
+        ),
+        pytest.param(
+            {"mode": "octal"},
+            {"variant": "ESP32S3"},
+            False,
+            None,
+            id="octal_mode_on_esp32s3",
+        ),
+        pytest.param(
+            {"mode": "octal", "enable_ecc": True},
+            {"variant": "ESP32S3"},
+            False,
+            None,
+            id="ecc_in_octal_mode",
+        ),
+    ],
+)
+def test_psram_final_validation(
+    config: Any,
+    esp32_config: dict,
+    expect_error: bool,
+    error_match: str | None,
+    set_core_config: SetCoreConfigCallable,
+    set_component_config: Any,
+) -> None:
+    """Test PSRAM final validation for both error and valid cases."""
+    from esphome.components.psram import CONFIG_SCHEMA, FINAL_VALIDATE_SCHEMA
+    from esphome.core import CORE
+
+    final_variant = _setup_psram_final_validation_test(
+        esp32_config, set_core_config, set_component_config
+    )
+
+    validated_config = CONFIG_SCHEMA(config)
+
+    # Update CORE variant for final validation
+    CORE.data["esp32"][KEY_VARIANT] = final_variant
+
+    if expect_error:
+        with pytest.raises(cv.Invalid, match=error_match):
+            FINAL_VALIDATE_SCHEMA(validated_config)
+    else:
+        # This should not raise an exception
+        FINAL_VALIDATE_SCHEMA(validated_config)