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+<ul>
+<li><p>[[\yii\caching\ApcCache]]: uses PHP <a href="http://php.net/manual/en/book.apc.php">APC</a> extension. This option can be
+considered as the fastest one when dealing with cache for a centralized thick application (e.g. one
+server, no dedicated load balancers, etc.).</p>
+</li>
+<li><p>[[\yii\caching\DbCache]]: uses a database table to store cached data. By default, it will create and use a
+<a href="http://sqlite.org/">SQLite3</a> database under the runtime directory. You can explicitly specify a database for
+it to use by setting its <code>db</code> property.</p>
+</li>
+</ul>