The visual settings for Ps4 are usually the PC high settings. I am not sure where you are getting this low settings. Find me a game or article where it's stated the PS4 is running low settings. Here is a comparison of the BF1 beta where Ps4 is targeting a 60fps frame rate.
No where near low settings. Ps4 pro with around double the graphics power should be able to push ultra settings. For how weak the hardware inside the Ps4 is i think it does a really good job.
Because there's a lot of deceptive tweaks that happen on consoles besides just graphical fidelity which make them compete but decrease the enjoyment, like more pop-in. And no, most graphically demanding games that are released on consoles are usually at 30fps, like Forza Horizon 3, DXMD (which doesn't even run at 1080p on XO), etc. just check out digital foundry's videos; I'm not gonna run through all of them but anyone interested will see what the majority is like (for AAA).
http://www.eurogamer.net/articles/digitalfoundry-2015-the-witcher-3-wild-hunt-face-off
@Nexus18, you're way overpricing the PC, and I'm not even talking about the amazing second hand deals you can get, I'm talking about buying new (could easily improve this build and make it £100-200 cheaper by going second hand). E.g.
CPU: Intel Core i3-6100 3.7GHz Dual-Core Processor (£92.91 )
Motherboard: MSI H110M PRO-D Micro ATX LGA1151 Motherboard (£45.76 )
Memory: Avexir Core Series 8GB (2 x 4GB) DDR4-2400 Memory (£31.98)
Storage: Western Digital Blue 1TB 2.5" 5400RPM Hybrid Internal Hard Drive (£78.53 )
Video Card: Sapphire Radeon RX 470 4GB Video Card (£169.99)
Case: Fractal Design Core 1100 MicroATX Mini Tower Case (£24.95k)
Power Supply: Antec EarthWatts Green 380W 80+ Bronze Certified ATX Power Supply (£42.32)
Keyboard: Logitech K120 - UK Layout Wired Standard Keyboard (£10.99)
Mouse: Logitech M100 Wired Optical Mouse (£11.24 )
Total: £508.67
