nI cannot answer your specific questions. However, based on my experience, I would like to confirm Rob's message about the number of cores and parallel processing.nIf you are planning to buy a computer, ask for parallel processing tests. Even if you have a huge amount of RAM, processors and so on, a bottleneck may be present and you will not be able to take advantage of all of your computing power.nIf your approach is based on buying separated components, be sure that you know someone with knowledge about parallel processing. nThis is a very delicate topic and much more complex than it seems. It is not just having the best components as possible.nAnother good practice is to avoid having computer memory more than 80% full. Bottlenecks are further accentuated in this case, even if you do not feel any kind of performance reduction in other tasks.n