Help with CPU pinned at 100% Usage in Sony Vegas (Recommended CPU Upgrade?)

[GTechGeorge]

Recently I've started doing more video editing than gaming to try and work on my YouTube channel (GTech if you're interested) and I've been having a LOT of issues with just playing back footage. I've been shooting at 4k 30fps and doing anything more than just playing back a single video causes playback framerate to drop dramatically. I'm using quarter resolution in the preview window with two 4K clips side by side (cropped to fit in a 16:9 4k window) and am getting <1fps playback. I would RAM preview my timeline bit by bit but that nearly doubles my editing time and only gets me a few seconds of uninterrupted playback at most, which is an issue for my frequently 20+ minute videos. Any recommendations I can do in Vegas to fix this?

 

My specs: https://pcpartpicker.com/user/StrikerX1360/saved/gWLjpg

 

I AM considering a big CPU upgrade sometime in the future to a Ryzen 9 3900X or 3950X because the large core/thread counts. I made this post about a month ago asking about the best choice between a 6950X (to stay on the same mobo), Ryzen 9 (to get back on the mainstream platform), or Threadripper for crazy enthusiast performance.

 

I'd appreciate any recommendations you guys might have on hardware, or solutions for the software.

[emosun]

no reason to change the hardware

Check what the bitrate of the videos is , clearly it's far to high to be played back normally. And or use premier and not vegas , I have no problems playing 4k 30 back so sure your machine should be able to as well

[GTechGeorge]

4 minutes ago, emosun said:

Check what the bitrate of the videos is

I'm using two different clips;

-one being a 30fps screen capture on my 1440p Ultrawide monitor [Total Video Bitrate = 2635kbps| Audio Bitrate = 134kbps]

-one is a 29.970fps recording from my LUMIX G7 camera [Total Video Bitrate = 94485kbps | Audio Bitrate = 125kbps]

 

I now see the serious problem with my camera bitrate being incredibly higher haha. How do I go about fixing this? I'm still learning the ins and outs to my camera.

[emosun]

Idk those bitrates should be playable on the machine. Are you able to play those files back in just a regular video player?

[GTechGeorge]

Yeah I use VLC Media Player and it shows the clips perfectly fine. Maybe I'm not allocating enough RAM or GPU horsepower to Sony Vegas? (kinda using a cracked version because I make $0 from YouTube and don't have the money to drop $20 a month on Premiere) It's also very finnicky when trying to enable CUDA acceleration to rendering as it just refuses to render for more than 1 second before spitting out an error. CPU-based rendering works just fine.