The EliteBook 850 has an SSD storage medium which is better than the HDD storage medium found on most portable PCs of this type and age. 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.
An SSD storage medium is in fact the best storage medium amongst all similar spec notebook PCs that came out around the same time as the EliteBook 850.
The worst storage medium across comparable types of portable PC is HDD.
We compared all the other portable PCs that have an SSD storage media to this laptop and we think the T450[pl_2966422_price], the ThinkPad X1 Carbon[pl_2831123_price], and the T450[pl_2966422_price] all from Lenovo which is cheaper is also worth considering.
Laptops with a better storage medium that might also be worth considering include the Toshiba Tecra Z50[plb_2090365_price] (SSD).