What should be the system unit for the fastest work of Adobe Photoshop?

Question

Iron

I need qualified advice. The task is to assemble a system unit so that Adobe Photoshop, Illustrator and InDesign work quickly under Windows 8.1. Here are a few smaller questions to help me get an idea of ​​the PC I need:
• What CPU specs are important to Photoshop (cache, frequency, number of cores)?
• How important is the motherboard chipset (and which one is better), what other characteristics should I look for?
• Is the frequency of RAM important or more important is its size (I'm considering a volume of 16 GB)?
• How to choose hard drives and how to use them to achieve maximum Photoshop performance?
• What is the minimum for a video card and what is the optimal video card?
I would like the cost at the level of 1500-2000 USD, however, this is not the main thing. Thanks to everyone who will respond. Special thanks to those who will be able to competently answer the questions posed.

Answer 1

From practice:
.psd files of layouts / illustrations in size from 4 to 8 gigs. Working with them in PS without lag / brakes / glitches, etc. goes great on DDR3 16gb, Core i7-4770

Answer 2

In general, I'm surprised by the slowness of Photoshop. No matter what configuration I work with it, it always slows down in about the same way and eventually goes to the swap file, which grows disproportionately to the size of the file (we are talking about RAM up to 8 GB).
Psd'shnik volume of 150MB after closing Photoshop releases 16 GB of memory on the working disk. So, my opinion is that it's not about the hardware and the amount of RAM, it's about the edob itself and the lack of optimization of Photoshop, which over time only becomes more gluttonous and slower.

Answer 3

the minimum configuration can still be determined for "comfortable" work, but about the maximum, the topic goes into space =)

Answer 4

I have almost an analogue of Mac Pro at work (in terms of parameters: CPU-i7-4770K 3.5GHz / 8MB, RAM-16Gb with ECC, ssd-500Gb + 2hdd-2Tb,). Under my tasks - it is redundant. Therefore, I advise you to collect according to your needs. For example, it is more logical to engage in 3D rendering on a configuration with a powerful video card, but you can draw vector illustrations on integrated video.
Raster editors (Photoshop, Lightroom) like to eat a lot of RAM, they calculate well in parallel (in the latest versions) = multi-core CPU. A layout weighing 1.5 Gb (with a small number of layers) is normally processed on 4 GB of RAM.
It all depends on the tasks that you solve.
Collecting the top config for all occasions is not economically profitable.
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Sorry for the confusion, just not understanding your tasks, it is impossible to give correct / specific advice.