Yes, there is a difference.
Yes, there is a difference.
Absolutely, I'm exhausted... but keep in mind that the rise in frequency doesn't always mean better performance. You need to consider timing when figuring out the first word latency.
I believe it will improve load times more. Also, games like Microsoft Flight Simulator that rely heavily on CPU would likely be affected more by RAM. Plus, it might be more visible during video editing when caching occurs.