This is an era of high end graphics, of HD games and remasters. These are the days of 1080 pixels and 60frames per second. To achieve such high level of fluidity developers need mode space on your hard drives, resulting in games which are of much more than a single GB.
While changing the Hard drive of your PS4, you will want to view How to change, upgrade, replace or install new PS4 HDD and restore data from old HDD guide.
To make up for all the extra space on your console, you need extra hard drives.
PS4 has up to 5GB of RAM available for use in games which is not much as compared to the larger game size in which they are available nowadays. The smaller size of RAM can lead to extremely long loading times. To get rid of this issue games use PS4's hard drive as a cache while they stream graphics data into RAM when required.
Study indicates that hybrid SSHD drive can give many of the benefits of SSD, but are also low in costs. SSHD hybrid drive provides the speed improvements of SSD in low budget and total storage capacity.
Seagate Solid State Hybrid Drive is available in 500GB and 1TB memory spaces. Seagate 1TB Solid State Hybrid Drive will cost you $99.00. Click here to buy.
Western Digital WD Black Hard Drive comes in the variety of 160GB, 250GB, 320GB, 500GB and 750GB. Western Digital 750 GB WD Black Hard Drive will cost $64.99. Click here to buy.
HGST Travelstar 2.5-Inch comes in the following three types, 1 TB 5400RPM, 1TB 7200RPM and 500GB 7200RPM. HGST Travelstar 2.5-Inch 1TB will cost around $74.00. Click here to buy.