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PS4 vs PS3 in Japan – VGChartz Gap Charts – June 2018 Update
Global PS4 console unit sales 2021 | Statista
PS4 vs PS1/PS2/PS3 in sales so far | NeoGAF
What Sony's '4.2 Million PS4s Sold' Figure Actually Means - IGN
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PS4 and Xbox One vs PS3 and Xbox 360 - VGChartz Gap Charts – May 2019 Update | N4G
PS4 and Xbox One vs PS3 and Xbox 360 - Aligned Sales Comparison - November 2015 Update
PlayStation 4 Versus PlayStation 3 And Xbox 360! - theGeek.games
PlayStation 3 | Video Game Sales Wiki | Fandom
PlayStation 3 | Video Game Sales Wiki | Fandom
PS4 and Xbox One vs PS3 and Xbox 360 - Aligned Sales Comparison - May 2015 Update
PS4 vs PS3 Sales in Japan Compared by Media Create: "Slightly Better Momentum" for PS4
PS4 and Xbox One vs PS3 and Xbox 360 Sales Comparison - November 2020
PS4 and Xbox One vs PS3 and Xbox 360 Sales Comparison - June 2021
PS4 sales hit 88 million, surpass PS3 | TweakTown
PS4 vs Xbox One vs Wii U Global Lifetime Sales – June 2016 Update
PS4 vs PS3 in Japan Sales Comparison - PS4 Falls Further Behind in August 2020
PS4 Hardware and Software Selling Faster than PS2 and PS3 in Asia
