Valor Points into the WOW as a kind of new currency when level85. It can be gained by doing dungeons or killing raid bosses, and used to buy epic wow gears or some transmog gears from Valor Vendor. During the later Patches,  500 Valor Points can upgrade ten ilvls for your gear, to let your character become more powerful.

Feats of Strength: 100,000 Valor Points, how many players can finish this achievement? 

Valor Points and Item Upgrades vendor are back in patch 6.2.3 after a brief disappearance. It becomes easier and faster to get Valor Points this time: Mythic Dungeons, LFR, weekly bonus quest, and so on. You can easily get 4000+ Valor Points per week, and upgrade gear for ten ilvls by Item Upgrades vendor. 

If you already have the Legendary Ring, you can buy a Crystallized Fel with 1250 Valor Points to upgrade the Legendary Ring for three levels. It is to say; you can gain the Ilvl795 Legendary Ring in the shortest possible time. 

Besides, there is an unlimited amount to collect Valor Points. You can get 4875 maximum Valor Points in one week if you have enough time and patience. You can upgrade 10 levels of your average ilvl in only two weeks so why not?