The nice thing about searching for a laptop for video editing is you only need to focus on a few components: The CPU, the RAM, and the hard drive.
What to look for in a PC for video editing
The CPU, the RAM, and the hard drive!
The difficult part about video editing from the computer's standpoint is that video files are usually very, very large. The CPU is the part of the computer that is devoted solely to crunching numbers and processing data. And although it may not seem like it, that's exactly what rendering video is. So it stands to sense you want the biggest best number cruncher you can get.
The RAM is where the computer caches the data it's currently working on. It's much faster than the hard drive as a data storage unit, so data stored to it can be processed quickly. Additionally, the less the computer has to refresh the data on the RAM, the better. So when you're working with gigantic video files, you want your computer to store as much of that to RAM as it can.
And finally, the hard drive. This part is simple, you want a big and fast hard drive because video files are huge, and because when you do inevitably do writing to your hard drive you want that to be fast as well.