What CPU to improve Render/Export Times - Intel i9 or 16 Core AMD?

SInstitute wrote on 7/8/2019, 9:16 AM

Hi Guys,

I do online Youtube maths tutorials which I record with OBS at 900p 60 fps (to capture part of my screen in 16:9 ratio) and I use Vegas Pro 15 to edit and and upscale to 1080p 60fps. I find with my Intel i7 4790 (which is still a powerful CPU), that rendering/exporting takes ages, like my longer exam revision videos take hours and hours.

I was dead set on purchasing Intel i9 9900k (8 core 16 thread) until AMD recently announced 3950x Ryzen (16 core 32 thread) for a very competitive price and I would like to ask you guys if you think the 16 core CPU would be a dramatic improvement over the i9?

I know some video editing suits prefer Intel over AMD for better performance so wondering if that is the case with Vegas Pro?

I will be buying nVidia RTX 2070 Super and 64gb of 3200mhz DDR4 ram which should compliment the CPU.

However I also do PC gaming which has traditionally very much favoured Intel CPUs.

Appreciate you thoughts on which CPU would be better for Vegas Pro and if it's worth stretching to the AMD.

Thank you.

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Comments

rtbond wrote on 10/29/2019, 6:55 AM

Very interesting that I had always heard more cpu cores/threads is better for video editing

You didn't hear that from a video producer, gamers maybe.

If you divide a pizza into 8 pieces and serve them, they will be gone less time than dividing it into 16 pieces and serving those. That's a crude explanation. Modern encoders are in their zone at 4-8 cores, and many filter processes are still single threaded. In this case, "hyperoptimal" means slower, not better.

I am not disputing your assertion, however, I did want to point to Exploring MAGIX Vegas Pro 17 Encode & Playback Performance. Page #2 illustrates rendering times for various Core counts. For this extremely stressful benchmark test, more cores do make a difference, but this is probably an atypical scenario.

Musicvid wrote on 10/29/2019, 11:23 AM

I have no stutters from OBS at sane bitrates.

I5 8250, four cores, eight threads, 2.5GHz.