The Lenovo Y50 has an SSD storage medium which is better than the HDD storage medium found on most notebook PCs of a comparable age and spec to it. 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 portable PC's storage medium (SSD) is actually the best storage medium across all notebook PCs of a similar age and spec to the Y50.
Across comparable types of portable PC the worst storage medium is HDD.
If the storage medium of this many processor core laptop is too bad for you then you might also want to look at the HP ZBook ($863.35) (SSD).