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PlayStation 4 review: fast, powerful, worth it | Engadget
PS4 contains 5.5GB of RAM for developers - Sony clarifies | VG247
Secondary Processor And 2Gb RAM Discovered In PlayStation 4 | eTeknix
PS4 Pro Update: Sony's New Console Has An Extra 1GB Of RAM And More To Sweeten The $400 Deal | iTech Post
PS4 price, hardware specs, and games detailed - ExtremeTech
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Xbox One vs. PlayStation 4: Which game console is best? - ExtremeTech
PlayStation 4 Hardware Specs - PlayStation 4 Wiki Guide - IGN
Are the RAM chips on a PS4 replaceable? I'm pretty sure the PS4 uses GDDR5 RAM. - Quora
PlayStation 5 vs PS4 / PS4 Pro: Is PS5 much more powerful?
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The Xbox One and PS4 share similar specs, but the devil's in the details | Ars Technica
Secondary Processor And 2Gb RAM Discovered In PlayStation 4 | eTeknix
PS4 Pro Will Have an Extra 1GB of RAM, Will Improve PSVR Games
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PlayStation 4 gives up to 5GB of RAM to game developers • Eurogamer.net
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Sony's 'PS4K': faster CPU, more RAM, same small HDD | WIRED UK
/cdn.vox-cdn.com/uploads/chorus_asset/file/7320949/PS4_7000_03.0.0.0.jpg "PS4 Pro's additional RAM frees up memory for game developers - Polygon")
PS4 Pro's additional RAM frees up memory for game developers - Polygon
