I tried AMD 6750, Nvidia 1660, Nvidia 1080 - drivers in Studio version, as well as work without GPU on integrated graphics with the processor. The program crashes on Nvidia.

I thin your GPUs are outdated a little bit. Not sure if they meet the specifications of Vegas. The AMD card seems to be the best, I would change the nvidia cards to more actual cards.

You can't even send a bug report to Vegas because you have to restart your computer. With AMD, it does not hang, but the preview is a few frames per second, and a large delay in the program's response.

Here we would need your more details - what about the processor, what about the project settings you use?

I use materials recorded on Sony A7S3 4k/50p 150MB /sec. Disks on Synology File Server.

Not sure if the Synology system is fast enough to allow to edit directly from the NAS. Has Synology now been allow the use of 10GB/s connections? I have an Synology System here too - BUT to be able to edit UHD files from the NAS I had to switch to a QNAP NAS with a 10 GB connection. What connection do you use?

Preview set to Half. Hard drives connected directly to the computer also do not bring improvement. RAM 64Gb. I also set the priority in Windows for Vegas to High. I don't have 25p content from my smartphone. All my productions are from professional cameras and mirrorless cameras.

I would really love to see the full specifications of your system. And things like project settings. Without that, it is hard to say anything.

For today I have Terramaster D2-310. But always connect manually one of the 40 drives directly to the sata in the computer. Because to the ecological instead of spinning so many discs non-stop, to work on one. I do not use NAS, RAID, I encourage you to use a spare disk and put the disk at rest on the shelf. if I install drives in Qnap, e.g. 4 slots, should I install a second network card in the computer? Is network television with a file server a program than a disk connected to the motherboard? I have the system on the M2

The TERRAMASTER D2-310 has an USB3.1 as I have seen - so 5Gbps. Hope that his is fast enough, but I am not sure about that. Also, drives connected directly to the SATA should be fast enough for HD too. But to measure the speed would be a nice idea, and to calculate if that works out really.

I had a lot of singel discs in my former days. But if you think in ecological footprint, the 40 drives are more significant then one good system - and I run my Qnap NAS as raid 5.1 today. And yes, I installed a 10 GB network card in my computer for that reason.

I am not sure if I understand your point about the network television and file server. My systems are dedicated editings systems only, and I do not run a file server on the same machine used to edit footage - since that would take away performance to an unknown extend. 

Can anybody tell me if Vegas content will download 4K video files? The highest it shows is 1080.mp4, even when I choose a 4K video.

@Piotr-Diszer If you look at my signature, you'll see 6 systems which run Vegas better than in your experience. As an fwi, I don't disable the igpu in any of the ones that have one. And try to find ways to make up for the ones that don't. I generally stick to default Vegas preference settings unless I confirm for myself that a different setting gives me better results. I also test driver updates before and after in the same manner. I also like to download user clips for new cameras and try them myself before running out and buying based only on advertising hype. And do the same by trying to pay attention to user experiences with gpus before running out and buying them too... though sometimes I can't resist.

I saw a contributor video showing 4K on this list

Can anybody tell me if Vegas content will download 4K video files? The highest it shows is 1080.mp4, even when I choose a 4K video.

@Cmin7669 1st one I tried... the shorter runtimes are probably 4k because they're bigger to upload or download,

EDIT: got Post

From the Vegas website:

Royalty-free stock content (Edit: limited, Pro: unlimited HD, Post: unlimited up to 4K). So you would have to have Vegas Post to get 4K. Vegas Edit and Vegas Pro are limited to 1080HD.

OK, that explains it then, I only have post 19 which is not compatible so I'm told.

gdzie sie wlacza igpu w vegas ?

HOVARD - VIGORITA - Hello. I work on Sony A7S3 4K 50p / 150mBs, A7S 1080 / 50p, Panasonic GH5 4k / 50P, Sony PXW-X200 1080/50P MXF, audio recorder Tascam WAV / 48kHz.

Your signature is very positive. I tried your specification Intel ARC770 and the program runs slower than GTX1660 but it doesn't crash. however with Intel ARC it breaks rendering every time. It doesn't show what error. while GTX1660 is always the same error

<FaultModule>

<Name>NVIDIA CUDA 12.1.98 OpenCL 1.2 Driver, Version 531.41 </Name>

<Filename>C:\Windows\System32\DriverStore\FileRepository\nv_dispsig.inf_amd64_3330f4136731b2d4\nvopencl64.dll</Filename>

This is my worst problem that I face several times a day.

The error repeats itself with one specific operation, so there is some error pattern, I marked it in the 45 second video. Always after hovering over the clip that is above

https://drive.google.com/file/d/1l1Ddctbq8mKJoFbaUyT4ZGPUlo2g2KYM/view?usp=share_link.[[VIDEO_V2:04DD1745413D430AABEAF47457F9BAC4]]

Which system did you put the Intel ARC into? A or B?

Did you replace the 1660 or are both installed? Try having Intel ARC handle AVC and HEVC decoding in preferences/ file io as the hang you showed might be a NVDEC issue.

Not sure about render crashes with ARC. You are rendering to QSV?