I'm not totally sure about this, but I know that my external monitor is a 19inch, and it won't even display the native resolution of the 19 inch montior
I have a 13in macbook pro 2.53 c2duo and 4gb of ram. I watch HD content (d/led movies, tv shows, etc) off my 40in LCD at 1080p resolution all the time no problem. The content plays smooth as can be. I'm sure youtube content won't be a problem.
I'm not totally sure about this, but I know that my external monitor is a 19inch, and it won't even display the native resolution of the 19 inch montior
I have a 13in macbook pro 2.53 c2duo and 4gb of ram. I watch HD content (d/led movies, tv shows, etc) off my 40in LCD at 1080p resolution all the time no problem. The content plays smooth as can be. I'm sure youtube content won't be a problem.
When I had my 2.0 Mac Mini (2 years ago model) hooked up to my 42" HDTV through VGA, it drove 1080P no problem. I do not see why a new MBP with a better (yes I know not that much) video card couldn't.
It will do this fine. It can output 1080P. Get the mini display port to hdmi adapter from monoprice.com. Works wonders. Watch the heat on the macbook when you do this. Grab smcfancontrol (google and install) and turn the fan up to keep the temps down.
Where on earth do people get this weird notion that because a screen is big their computer might have trouble "powering" it?! It is resolution, not size that will cause problems. The 13" MBP's GPU (9400M) can do 2560x1600 as a maximum resolution. Your TV is 1080p (1920x1080).
Your current laptop may be struggling because of poor video memory.. you didn't really tell us anything about it.. vague posts don't really get any answers.