4k Video editing system Premier pro and After effects 1200-1400

[Mickmauer]

Hello everyone,

I need your help, I want to build a Pc for 4k video editing in Premier Pro and After Effects, Totally buget for Pc is somewhere 1200-1400$. I read so many article of forums but im confused a little cause i want to buy with Amd Ryzen 7 1700X , and i dont know what is more important for editing Ram or GPU it will be enough 16gb or I need 32 for good rendering and editing time.What is the best video card for this buget? The motherboard what i want to buy is maybe the
ASUS Prime B350-Plus AMD Ryzen... when I buy a 16 gb ram maybe i have enaught money to buy a gtx1070 or 1060 it will be good enought to rendering. ( I have an SSD for my old computer) Any sugestion for build a pc to me. I apreciate all the answers and sugestions .
I want to edit a sony alpha mirrorless and a dji phantom 4pro footages 4k and 1080p

 

[BIJITplus]

PCPartPicker part list: https://pcpartpicker.com/list/76TZYr
Price breakdown by merchant: https://pcpartpicker.com/list/76TZYr/by_merchant/

CPU: AMD - Ryzen 7 1700 3.0GHz 8-Core Processor ($289.99 @ SuperBiiz)
Motherboard: Asus - PRIME B350-PLUS ATX AM4 Motherboard ($81.98 @ Newegg)
Memory: G.Skill - Ripjaws V Series 32GB (2 x 16GB) DDR4-3200 Memory ($279.99 @ Newegg)
Storage: Samsung - 850 EVO-Series 250GB 2.5" Solid State Drive ($104.64 @ OutletPC)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($59.99 @ Best Buy)
Video Card: Asus - GeForce GTX 1070 8GB STRIX Video Card ($474.98 @ Newegg)
Power Supply: SeaSonic - G 550W 80+ Gold Certified Semi-Modular ATX Power Supply ($56.89 @ Newegg)
Total: $1348.46

When it comes to video editing, RAM should be prioritized over graphics cards. Cheers!