JOOK-D :
Could you post the model of the i3 and i5 please?
Generally I'd go with a quad core i5 rather than a hyperthreaded dual core i3.
AnEwG :
I would personally go with the third generation i5.
Intel i3 4th generation 4130 ,3.4 ghz,3mb cache,2cores other is intel i5 3rd generation 33305,2.7ghz,6mb cache,4 cores hope this is correct not to hot on this,thanks