I am sorry that I have taken so long to get back to you. I have been very busy on projects.
I mentioned AMD CPUs are soldered and Intel is not because the TIM used by Intel produces a lot of heat, due to poor thermal transmission from CPU die to the IHS. AMD does not have that problem because they use solder, just like Intel did many years ago. Soldering is more difficult on modern CPUs, so, Intel took the cheap and easy route.
I mentioned AMD 6 core 12 thread Ryzen CPUs because you get more power for much less money than from Intel and I was not sure of what software you were using. However, AMD has CPUs with fewer cores and you can save money by using fewer cores if your software cannot use the extra cores or threads, which sounds like your situation. In other words, 4 core 8 thread i7 Intel CPUs or AMD Ryzen CPUs.
Regarding overall cost of a computer, higher end AMD CPUs come with a CPU cooler. Higher end Intel CPUs do not come with a cooler. The brand new Intel i7 8700K is a good CPU, however, the motherboards are over $100 more than those used by an Intel i7 7700K and AMD Ryzen.
Windows 10 can get more work done with a CPU that has enough cores to run everything necessary in the background and the required CPU load by any other software running at the same time.
For example, programs like Adobe Premiere Pro and After Effects as many cores and threads as you can throw at it.
If you are not going to use expensive software, such as I mentioned above, then an i7-7700K with a Z270X motherboard will do the job for you. Also, a AMD Ryzen 5 1600X will do a fine job with a good motherboard.
In case you do not know what I mean by cores and threads, for example you can get CPUs with 4 cores and they will process 4 threads [basically 4 CPUs in a die or 4 pipelines doing work at basically the same time, which results in more work being done than a CPU with 2 cores]. My i7-7700K has 4 cores and can run 8 threads. The extra 4 threads are available from [Intel] Hyper-Threading and permit more simultaneous operations than a CPU with 4 cores and only able to run 4 threads [one thread per core].
I hope this explains everything without stepping on your toes, in case you already knew what Hyper-Threading is. In case you need info on Hyper-Threading here is a very simplistic, if not a little overly so, answer
https://www.youtube.com/watch?v=wnS50lJicXc
AMD has the same thing, it is called Simultaneous Multi-Threading
https://www.anandtech.com/show/11170/the-amd-zen-and-ryzen-7-review-a-deep-dive-on-1800x-1700x-and-1700/10
I made an assumption that you wanted maximum read and write performance, and that is why I mentioned the NVMe SSDs. If you want good performance in a regular SSD I suggest you look closely at the Samsung 850 Pro series, they provide outstanding performance for the price.
http://www.storagereview.com/samsung_850_pro_ssd_2tb_review
I hope this helps you with your computer build.