You're nuts. The majority of current consoles have low end AMD APUs in them that don't even match up with ANY of the builds on this page.
While most of them are 8 core, we already know that almost no games will take advantage of more than 4 anyhow. The few that do will be hampered by the fact that the base clock for the PS4’s processor is 1.6 GHz, while the Xbox One runs at a slightly quicker 1.75 GHz. That's about half the speed of almost any current gen CPU for the PC.
The on-paper power of the PlayStation 4 is only on par with the Radeon HD 7850, a competent but inexpensive card that usually sells for $140 to $160 and offers 1.76 TFLOPs.
The GTX 960 by way of comparison runs at 2.7TFLOPs. And that's not even a very high end card. The R9 280x is even higher for a slightly higher investment.
Just about any good current Gen card bests the graphics performance of those consoles. Easily. So I think you need to go do some research before you say that a console outperforms any specific PC build. Clearly you are misinformed. Plus, as mentioned, most console games are locked at a dismal 30fps, which almost every PC gamer would laugh at.
And if it's a CPU intensive game, that Jaguar core in the PS4 will shrink into a corner and quiver. It's a weak, watered down, power saving 8 core that doesn't have comparable IPC to even the wimpy Athlon X4 quad core chips.
There are pages and pages of data that show us that even two years ago the PS4 had a hard time competing with budget PC gaming rigs, much less now when a fairly decent budget PC gaming machine can be assembled for a very slightly larger investment. Actually, much less if you consider that consoles don't come with displays so if you take the display out of the PC budget, it's not even a competition. In most cases, if you really wanted to, you could use the same TV you're going to use with that console, with your gaming PC.