The HP EliteBook 850 G2 has a better storage medium than most medium processor core notebook PCs that have been available for more than a year. This portable PC has an SSD storage medium, whereas most laptops of this age and spec 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.
An SSD storage medium is actually the best storage medium amongst all medium processor core notebook PCs that have been around for more than a year.
Amongst similar types of laptop the worst storage medium is HDD.
Alternative portable PCs that have an SSD storage media currently available which you might also want to consider include cheaper laptops such as the Portégé Z30-A[pl_2871919_price], or the Tecra Z40[pl_2891833_price] both from Toshiba or the Lenovo T450s[plb_3046986_price].
Notebook PCs with a better storage medium that might be worth considering include the Toshiba Tecra Z50[plb_2090365_price] (SSD).