why ps3 and x box 360 can run next gen games some of the parts are outdated

Nefos

Honorable
Nov 8, 2013
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because the games are developed exactly for their hardware, they mostly use different/older engines
For example look at Xbox One/Ps4 watch dogs. Simply beautiful, living word, and so on
Look at Ps3/Xbox 360 version, there is a trailer somewhere. it clearly looks much worse, in my opinion it is like GTA 4 and GTA SA mix...