PS4 devs can only use 4.5GB of system's 8GB RAM - Report | GamesIndustry.biz
Sony PlayStation 4 Slim Horizon Zero Dawn Bundle Upgrade 2TB SSD PS4 Gaming Console, with Mytrix Chat Headset - 2TB Internal Fast SSD PS4 Console - JP Version Region Free - Walmart.com
バイオハザード4.5.7 セット PS4の通販 by つばさ's shop|ラクマ
PS5 shipped 4.5 million units in 2020; PS4 shipments top 115 million : r/Games
PlayStation 5 - Vendute 4.5 milioni di unità, Ps4 a quota 115 milioni