And did you try to render 1000 frames or 2000 frames with full HD as a mp4 file?
If not, please try it. Full HD is 1980 px and 1080px.
My computer has 3,8 GiB of RAM.
I made a small movie to test the new camera. Rendering needed abuout 6 minutes on my computer.
just in HD (720p)
This is what people expect, when they go with their children into a astronical society, to look through a telescope.