MacBook :: 9400m Editing And Rendering 1080p Video?

Im thinking about getting a mbp 13" and i was wondering how well it edits and renders 1080p video. i currently edit and render on my 2007 mb and it takes 3 hours just for the render, plus it freezes for a few seconds here and there scrolling through the video. so we will say 4 hours total 1 hour to edit 7 min clip and 3 hours or more to render it. what my question is does anyone out there edit and render 1080p video with there 9400m and if so about how long does it take. and how long the video was that you rendered. the reason im asking only about 1080p is that my mb can work fine with 720p and it has the igpu for intel the x3100. also i mainly shoot in 1080p/60 frames per sec.