So i have a 720p camera and i can watch 720p on my ancient pc , but when its uploaded to youtube i can only watch it smoothly in low res , i read that for youtube videos its the processor not the video card that does all the number crunching so that's why i can't see youtube vids in 720p so i tried a pc with admittedly again old but dual core processor and i still can't get smooth 720p from youtube .we are not talking about the connection as mine is fast, it just won't play smoothly even when fully buffered.

so my question is this can your PC play smooth 720p from youtube and if so what processor have you .?

or have i got this completely wrong ?