The Lenovo Y50 has a better storage medium than most many processor core portable PCs that have been on the market for a comparable time to it. This notebook PC has an SSD storage medium, whereas most laptops of a comparable type and age to it have an HDD storage medium. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
This laptop's storage medium (SSD) is in fact the best storage medium across all portable PCs of this spec and age.
An HDD storage medium is the worst storage medium across similar types of laptop.
If you want a laptop with a better storage medium then you might want to look at the HP ZBook 17 (SSD and higher rated) or the DELL XPS 15 9530 (SSD and cheaper).