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Sony's enhanced PS4 will feature an extra 1GB of RAM, PlayStation 4 Pro

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In an interview with IGN, Cerny explained that because PS4 Pro is part of the PlayStation 4 generation , the company took a "different direction" in upgrading the hardware, when compared to the significant memory upgrades typically seen in the shift to an entirely new console generation."We felt games needed a little more memory, about 10 percent more, so we added about 1GB of slow, conventional DRAM to the console," Cerny explained.He went on to note that on the standard PS4, when moving from application to a game, that application remains resonant in the system memory to allow for fast swapping between the two. With PS4 Pro, that application is moved to the extra 1GB of RAM when swapping to a game, freeing up nearly an entire gigabyte of the console's remaining 8GB of GDDR5 RAM.Cerny explained that games on the PS4 Pro can now use an additional 512 mb, so about 5.5 GB in total on the PS4 Pro, while the rest is used for the Pro's interface. He summarized what that memory benefit means by saying that "games have just a little more memory, 512MB to be exact, and most of that is used for the various buffers needed when rendering high-resolution or higher-quality graphics, and the game assets... stay the same, they just look a heck of a lot better on the new console."PlayStation 4 Pro releases on November 10 and will "stand alongside and complement the original PS4" with 4K and HDR capabilities

Alex Osborn is a freelance writer for IGN. You can follow him on Twitter and subscribe to his video content on YouTube