Minimum RAM for 4K

You can edit most variations of 4K H.264/265 just fine with 16 GB of RAM if your computer supports Nvenc or Quick Sync. Pro Res, BRAW and R3D files use much more data and will fill up the RAM more than H.264/265. The video below might be helpful.

https://helpx.adobe.com/uk/premiere-pro/system-requirements.html 

You'll need 32Gb for a good experience but other factors are equally important for hi-res editing:CPU, GPU and storage speed.

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@NE023 wrote:

PLEASE reply ASAP!

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This is a user to user forum. So you just have to wait until someone comes along.

Meanwhile you can do some homework.

Adobe Premiere Pro CC System Requirements