The core hardware is as follows, and other hardware is as you like.
It's no problem to handle videos up to 4K.
Processor: Intel Zhiqiang 5-2667v3 @ 3.20 GHz eight nuclear Sixteen Threads.
Radiator: Lanshuo 6 copper tubes 4 wires 3 fans Aurora colorful
Motherboard: South China Intelligence/South China Gold Medal X99-8M-F
Memory: two ballistix white vests DDR430008GC9BZJ or server memory will do.
Graphics card: GTX 16504GD6 brand can choose Sotai/MSI/Galaxy/Colorful/ASUS or use second-hand RX580.
Power supply: brand power supply with rated power above 500 watts can be used. Great Wall, New Valley, Hangjia, Quanhan, Delta, Pirate Ship and other brands can be used. It is best to have 80PLUS certification. Don't care too much about which brand, as long as it's not a fake or a miscellaneous brand.
Solid state drive: SN750, with high cost performance.
Other accessories can be selected according to your own preferences.
In addition, video editing is the strength of AMD processor, and then recommend a more cost-effective AMD platform configuration, in which the processor can be replaced by AMD Ruilong 3500X or AMD Ruilong 3 100 to see your wallet, and the graphics card is replaced by 1650, which is relatively cheap. See the picture for details.
You also want to know what kind of software to use for editing.