When it comes to choosing a fast processor for your laptop, there are a few things you'll want to keep in mind. First, consider what you'll be using your computer for most often. If you're a power user who needs the quickest possible speeds for things like video editing or intense gaming, you'll want to look for a processor with a high clock speed.  Another important factor to consider is the number of cores the processor has. A quad-core processor will be much faster than a dual-core, for example. Finally, ensure your chosen processor is compatible with your laptop's motherboard. With these factors in mind, you should be able to find the fastest processor for your needs.