Hi.
It's time to upgrade from 4 kernels with GTX970 to higher.
I looked at the benchmark and I honestly don't trust him at all.
There are a lot of illogical results. And it scares me a lot.
The result of such tests is that Vegas is illogically functioning software. There are frequent opinions that more cores does not mean higher performance. That So4 doesn't support multiple cores, that too much Dram harms and other views.

Honestly, for a person who wants to spend a lot of money, this advice is scary.

So I ask directly.

Does anyone have clear evidence of what combination is great for playing 4k Hevc and H264 with I / O turned on?

Quicksync UHD 630, just CPU or GPU?
I don't care if the render takes place in 10 seconds or a minute.
I need a radical change during playback, without Proxy.

Ideal is a person who takes a test of playing a marked section in a bechmark Vegas project.

https://www.dropbox.com/s/3i4xgnhl9fmc0je/BenchmarkProject4K.zip?dl=0

your PC .............................................?
I / O off .............................................. ? FPS
I / O Quicks UHD 630 or other ..........? Fps
I / O Nvidia or AMD ...........................? Fps

Thanks a lot.