Yes proxy files are only used inside Vegas they are a lower resolution file so your preview runs faster. At render the preview files are replaced with full resolution files in your project. When you upload any file to YouTube it is reprocessed by YouTube. This has nothing to do with Vegas.

Hello 

I tried again without the proxy file and it works too. 

When I right-click on the media, the proxy file is not highlighted so I can't. In principle this is because the preview is set to full preview. So the proxy file is not necessary whit this setting.

Best regards

If you can't highlight proxy file that means it was already created, I believe. So when you add that media to the timeline in full/preview mode it will automatically use the proxy. Change to best/full and you'll see the original file again.

Indeed. I tried it with another media and it is not fluid without proxy file even when set to full preview. 

Yet I hadn't recorded anything with the other media. 

If I can have a GPU without using a proxy file for heavy applications, which one should I choose? 

NVidia GeForce RTX 3070 ? 

Best regards
 

@LuluBent
It all depends on what you do with 4 K events in Vegas 18.
Depends on the used decoder for the file itself.
Vegas 18 set it automatic to the best options during the install or reset, you can disturb that by making changes in Preferences Video or File I/O.
If you use effects it depends on the used ones if a fluent preview is possible.
On my desktop from signature I am able to preview and edit heavy 4K AVC or HEVC events fluently without the use of proxies, also with the little effects I use.

J-v is right that it really depends on the type of media you use.

If you are just working on timing and clip order, you can click a button by the preview window to temporarily disable Fx. That lets you have smooth playback if certain Fx are slowing your system down.

For what GPU to use- if you really have trouble with the video types or Fx you use the most you might consider upgrading. Sure, the best GeForce cards will give the best performance. If money matters, the release of new cards will make the old ones cheaper, and their performance should still be much better than what you have now.

To be clear, though, certain Fx just aren't possible to play back smoothly and you need to prerender or use dynamic ram preview to view them.

If I click on AVC or HEVC, I can no longer import media into the timeline.

The FX I'm thinking of using :

Picture in Picture.

Object tracking.

Scrolling or alternate credits.

Titles.

Freeze frame.

Black and white.

Thumbnail.

Blurred.

No question anymore?

I forgot: multicam too.

It seems that my GPU is rather designed for computer-aided drawing or computer-aided design. As well as 3D animation. 

My GPU not really adapted for video editing.

Not bad as long as your processor is and Vegas is and was always a program that needed most the processor for editing. Sometimes a good GPU with uptodate drivers can help with a few tasks.

Hello 

Should the benchmark score be taken into account when choosing a GPU?

I found the model above mine for a score of less than 8000.

When others are at almost 24000.

It's apparently not the same thing. 

What score should I consider for video editing?

Best regards
 

Bench mark scores are just a relative comparison rating depending on the test. They just give you an idea of how one card compares to another against a particular test. The scores will vary between different benchmarks (passmark, 3DMark ect). Also the CPU you use with the card will affect its performance. For example I have an Intel i5 3rd gen CPU with a GTX 1080ti with 1080P monitor. The CPU will bottle neck the card as its not really powerful enough. It would be nonsense for me to buy a new 3080 card with my CPU as it would not show any or much performance increase at 1080p, possible at higher resolutions but my CPU would reduce its performance. Generally the more powerful the card the better performance in Vegas. I hope this helps.

Maybe look at a benchmark of Vegas Pro? https://techgage.com/article/magix-vegas-pro-18-processor-graphics-card-performance/

Good evening

As I understand it, the best performing GPUs are at the top of the list. 

The model above my GPU (WX 7100) is often at the bottom of the list. Or in the middle. 

If the first three allow me to preview fluid video without using a proxy file even if I set it to full preview, then it's perfect. 

Best regards

@LuluBent Playback performance is on page 2.

Whether it can play back fluidly depends on the file type and framerate. The first chart is with a LUT enabled. Based on this, the better graphics cards will let you do 4K60p without a proxy while using a LUT.

There is a huge difference between them and the WX Radeons.

Hello

Excuse me but what does LUT mean?

Best regards.

LUT = Look Up Table which is a means of creating a desired color 'look' to a shot, sequence or project. Think of TV series or feature films that have a color 'look' to them.

To find out more, go to Vegas Pro's user manual - Contents and Index under Help - and do a search for LUT. Also, a Google or other search for 'LUT' will give you heaps of info as well as free LUTs (with the usual caution about downloading from unknown sources).

If you don't use LUTs for color correction or grading, don't worry about it. The point is that the clip plus a somewhat intensive Fx will playback in real time with better cards.

Good evening 

Indeed the choice is not simple. 

I think it would be wise to wait for the release of the Radeon 6000 series which is imminent. 

I was just leaving on the 5700 XT. 

Possibly Nvidia RXT 3080 but strangely they are all out of stock at my supplier. And a bit expensive though. 

By the way the Fx "film effect" version 1908 is not fluid even with a proxy file. It is planned intentionally with this Fx or it is not normal ? 

Bests regards
 

By the way the Fx "film effect" version 1908 is not fluid even with a proxy file. It is planned intentionally with this Fx or it is not normal ? 

For me fluent enough without proxy on my laptop from signature, look and be aware playback is slowed down by also taking a screenvideo

Thank you. So that's part of the Fx.