Side-by-side: PS4 gamepad vs PS3 gamepad | TechRadar
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Sony PS4 vs PS3 | Trusted Reviews
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Purchase Games On PS3, Get "Significantly Discounted Price" For PS4 Version - GameRevolution
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Sony patenta un nuevo sistema de retrocompatibilidad de PS5 con PS4, PS3, PS2 y PSX | Hobby Consolas
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Sony PS4 vs PS3 | Trusted Reviews
How to play PS3 games on PS4?! Backward compatibility explained. - YouTube
/cdn.vox-cdn.com/uploads/chorus_image/image/22058127/ps4_wm.0.jpg "Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon")
Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon
Do PS4 Controllers Work on PS3? How to Connect a PS4 Controller to PS3
