We reviewed the Dell XPS 13 Plus with the Alder Lake P Core i5. Result: The i5 is 18% slower under sustained load, and system performance is weaker with the slow Micron 512 GB SSD.https://www.notebookcheck.net/The-Core-i5-XPS-Plus-is-18-slower-than-the-i7-variant.641622.0.html
Good to know, manufacturers generally don't disclose the actual variant and performance of SSDs so it's up to tech sites to provide that info, including the crucial silicon lottery which SSD lotteries are a part of.