Help please....Why is my Dell laptop editing premier footage so well when it is sooo badly specced?

Hi All,

I  mistakenly bought an underpowered laptop some months ago. Its a Dell 7420.   It has an integrated video ram.  The video has 128meg of ram.   I have been looking for another more powerful laptop with a good video card so I can edit in Premier Pro.

Heres the thing....   I downloaded Premier Pro onto this under powered laptop and it seems to edit my project without any issues.   Am I missing something here? The laptop has 16 meg of Ram and an I5 cpu.

I am editing full HD footage, which is all I need.

I did a trial export and it exported just fine.  This is so weird, can someone please tell me what is going on here?   I just dont get it!