In order to be used in a desktop-style multi-processor system, each CPU needs to be able to communicate with the others to ensure that they have a consistent view of the system's memory. This function is known as cache coherency. I believe that since Pentium M processors were targeted for the power-conscious mobile market, such features supporting power-hungry multiprocessor systems were omitted.
It seems that Intel is increasingly turning towards multiple processors (and similar approches), in order to continue improving performance. So, you may start to see multiprocessor or multi-core notebooks, in the next couple years.
I believe this isn't the best forum in which to discuss specs for your next video editing sytem. I recommend the following site (click on the link "Forum List", on the left), and wish you luck:
When it comes to video editing, a computer with high-end specifications is typically necessary to handle the demands of video rendering and processing. Here are some factors to consider when choosing the best computer for video editing:
Processor: Look for a computer with a powerful processor, such as an Intel Core i7 or i9, or an AMD Ryzen 7 or 9.
Graphics Card: A dedicated graphics card is important for video editing, as it will help accelerate the rendering process. Look for a GPU with at least 4GB of VRAM.
RAM: Video editing can be memory-intensive, so look for a computer with at least 16GB of RAM. Some professionals may prefer 32GB or more for large projects.
Storage: Video files can be large, so a fast and spacious SSD is important for storing and accessing your footage. Consider a computer with a large SSD, or a combination of SSD and HDD.
Display: A high-quality display is important for accurately viewing and editing video footage. Look for a computer with a high-resolution display with good color accuracy.