In order probably the gpu, then cpu, then ram. Something more comparable to the ps4 would be the gtx 760 when you factor in that the games are optimized for the ps4 and the ps4 doesnt have a lot of background programs to run. Also you must take into account that altough the ps4's cores are weaker there are 8 of them and they are much more optimized for the game, compared to just 2 of the i3. Also the ps4 has 8gb ram.