A few years ago, your PC just couldn't be fast enough for digital video processing. By now every average PC is able to process Standard Definition (PAL 720x576) as well as HD Ready, but technology doesn't stand still. By now just about every smartphone can record in HD or Full HD and the new frontier is Ultra HD, also known as 4K. This resolution and the 'accompanying' codec HEVC / H.265 require seriously powerful hardware.

That's the reason why a powerful PC can still really make a difference. You need a fast processor, lots of storage capacity, and good monitor able to display 4K resolutions.