Help at building a gaming pc with max 850$

[yon_12]

Hi, I've been looking for some time for the best components to build a strong PC gaming in this budget. I chose gtx 1060 6gb as video card and for cpu i5-8400 or ryzen 5 1600.
I know ryzen 5 1600 is better for multitasking and streaming.
i5-8400 is better in single core speed so it's better in gaming than 1600.
I decided to go with i5-8400 since my objective is gaming performance. It have a poor stock cooler so i want to buy a h212 evo for more stability. I think 8400 reach 3.8GHz on all cores easier with less power than 1600, since 1600 need overclock to reach 3.8GHz. So 8400 it's a little safer than 1600.
I want you to tell me if I'm wrong with this decision and if the components i chose to suit i5-8400 are the best.
This is my build https://pcpartpicker.com/list/kg6YNQ

 

[Ztdutxjgxgtu]

Is ryzen 2600/x within your budget, you can also save the cooler.
Cheaper mobo b350 and 2x more threads for multitask
You wont get much fps diff with gtx1060 on both cpu

 

[ElectrO_90]

Also, if you go AMD your motherboard won't be out of date by the beginning of next year when they will probably release another new chipset making your intel system not possible to upgrade.

 

[Lucky_SLS]

For 60fps gaming, both the 8400 and 2600X is more than capable.

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 5 2600X 3.6GHz 6-Core Processor ($209.99 @ Amazon)
Motherboard: MSI - X370 GAMING PRO ATX AM4 Motherboard ($99.52 @ B&H)
Memory: Patriot - Viper 4 8GB (2 x 4GB) DDR4-3000 Memory ($84.99 @ Newegg Business)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($59.09 @ OutletPC)
Video Card: Asus - Radeon RX 580 8GB DUAL Video Card ($279.99 @ Amazon)
Case: Deepcool - DUKASE V2 ATX Mid Tower Case ($34.99 @ SuperBiiz)
Power Supply: EVGA - SuperNOVA G3 550W 80+ Gold Certified Fully-Modular ATX Power Supply ($63.98 @ Newegg)
Total: $832.55
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-06-08 01:28 EDT-0400

The advantage with the rx580 is you can go with a monitor like this and still get stable 75fps.
https://pcpartpicker.com/product/QCF48d/lg-29um69g-b-290-2560x1080-75hz-monitor-29um69g-b or the 34" model at 340 bucks