DaVinci Resolve 16 super slow rendering

[Terryble]

Hi LTT Community, I started working with the free version of DaVinci Resolve 16 recently and my rendering times are ridiculously high, the first time I rendered a video it was in 1920x1080 60f, this took 3.5 hours, it was a 38 minute long video, today I have rendered another video, but this time it was an 8 minute long video (same resolution, same fps) and it took 55 minutes, according to davinci the videos are rendering at a speed of 10 frames per second, which is extremely slow. Generally, at the beginning of the rendering the speed shoots up to about 30 frames per second but after 5 seconds it drops to 10 and it stays there.

Some data

Video files I work with: Mp4- H.264 Codec - 1920x1040 resolution – 60f

Project settings -> Timeline frame rate: 60 - Optimized Media Format: DNxHR HQX (I’m not using Optimized Media files) - Render Cache Format: DNxHR HQX

Render Config. -> Format: QuickTime - Codec: H.264 - Resolution: 1920x1080 HD - Frame Rate: 60 - Quality: Restrict to 30000 Kb/s

*Basically, Vimeo 1080P Preset, just changed the quality from 10000 to 30000 Kb/s

Pc: Ryzen 9 3900X (12 Core) - Nvidia RTX 2080 8Gb - 32Gb of memory

I know nothing about video editing, rendering or DaVinci, please help.

3.bmp 1.bmp 2.bmp

[LaFemmeEnVert]

4 hours ago, Terryble said:

Hi LTT Community, I started working with the free version of DaVinci Resolve 16 recently and my rendering times are ridiculously high, the first time I rendered a video it was in 1920x1080 60f, this took 3.5 hours, it was a 38 minute long video, today I have rendered another video, but this time it was an 8 minute long video (same resolution, same fps) and it took 55 minutes, according to davinci the videos are rendering at a speed of 10 frames per second, which is extremely slow. Generally, at the beginning of the rendering the speed shoots up to about 30 frames per second but after 5 seconds it drops to 10 and it stays there.

 

Some data

 

Video files I work with: Mp4- H.264 Codec - 1920x1040 resolution – 60f

 

Project settings -> Timeline frame rate: 60 - Optimized Media Format: DNxHR HQX (I’m not using Optimized Media files) - Render Cache Format: DNxHR HQX

 

Render Config. -> Format: QuickTime - Codec: H.264 - Resolution: 1920x1080 HD - Frame Rate: 60 - Quality: Restrict to 30000 Kb/s

 

*Basically, Vimeo 1080P Preset, just changed the quality from 10000 to 30000 Kb/s

 

Pc: Ryzen 9 3900X (12 Core) - Nvidia RTX 2080 8Gb - 32Gb of memory

I know nothing about video editing, rendering or DaVinci, please help.

3.bmp 5.93 MB · 3 downloads 1.bmp 5.93 MB · 2 downloads 2.bmp 5.93 MB · 1 download

There are some rendering acceleration limitations with the free version, at least according to the feature comparison doc for version 15.

 

what kind of edits did you do?  Lots of graphics or noise reduction?

[Distinctly Average]

That seems very slow. I often output to YouTube settings video of a similar length albeit at the default quality. In general my renders are slightly slower than real time. My system is more modest than yours too, Ryzen 5 3600, RTX2060 and 32Gb on a decent NVME drive. I too am using the free version.

 

As things run fine at the start but then it slows it does sound like a buffer filling up somewhere. Maybe the HDD is low on space, or its buffer is. Sorry I cannot offer anymore thoughts except show that it should run faster than that. When I get a chance I will run a Vimeo output at the same settings as you share my results.

[GDRRiley]

thats way off. I'm on a 2700x and a RX580 and 1440p footage goes way faster.

something isn't right

whats your storage?

[Distinctly Average]

13 hours ago, Terryble said:

Hi LTT Community, I started working with the free version of DaVinci Resolve 16 recently and my rendering times are ridiculously high, the first time I rendered a video it was in 1920x1080 60f, this took 3.5 hours, it was a 38 minute long video, today I have rendered another video, but this time it was an 8 minute long video (same resolution, same fps) and it took 55 minutes, according to davinci the videos are rendering at a speed of 10 frames per second, which is extremely slow. Generally, at the beginning of the rendering the speed shoots up to about 30 frames per second but after 5 seconds it drops to 10 and it stays there.

 

Some data

 

Video files I work with: Mp4- H.264 Codec - 1920x1040 resolution – 60f

 

Project settings -> Timeline frame rate: 60 - Optimized Media Format: DNxHR HQX (I’m not using Optimized Media files) - Render Cache Format: DNxHR HQX

 

Render Config. -> Format: QuickTime - Codec: H.264 - Resolution: 1920x1080 HD - Frame Rate: 60 - Quality: Restrict to 30000 Kb/s

 

*Basically, Vimeo 1080P Preset, just changed the quality from 10000 to 30000 Kb/s

 

Pc: Ryzen 9 3900X (12 Core) - Nvidia RTX 2080 8Gb - 32Gb of memory

I know nothing about video editing, rendering or DaVinci, please help.

3.bmp 5.93 MB · 3 downloads 1.bmp 5.93 MB · 2 downloads 2.bmp 5.93 MB · 1 download

OK, I just did a test on a 1:59 video using the exact same settings as you and it took 25seconds to render. Seemed too goo to be true so I tried a longer, 12min video and it took 7mins to render.

[Terryble]

5 hours ago, GDRRiley said:

thats way off. I'm on a 2700x and a RX580 and 1440p footage goes way faster.

something isn't right

whats your storage?

Sabrent Nvme Gen3 x4 and its also my boot drive, don't know if that's a problem

[Terryble]

10 hours ago, LaFemmeEnVert said:

There are some rendering acceleration limitations with the free version, at least according to the feature comparison doc for version 15.

 

what kind of edits did you do?  Lots of graphics or noise reduction?

Just really simple stuff, two simple transitions made with adjustment clips, video overlays and a camera shaking effect. the intro and outro are not made in the project, they are just added in videos but with a slaight difference in frame rate (50fps instead on 60 which is the timeline fps).

[GDRRiley]

16 minutes ago, Terryble said:

Sabrent Nvme Gen3 x4 and its also my boot drive, don't know if that's a problem

disk usage?

consider I edit to and from a HDD that should be the issue.

what GPU driver version are you running

[LaFemmeEnVert]

11 hours ago, Terryble said:

Just really simple stuff, two simple transitions made with adjustment clips, video overlays and a camera shaking effect. the intro and outro are not made in the project, they are just added in videos but with a slaight difference in frame rate (50fps instead on 60 which is the timeline fps).

I can only see your screen grabs today and they dont provide any additional information

aside from some limitations because you are using free version i cant think of any reason why you should have this slow render proboem

 

your cpu has a fast clock speed for individual cores

your gpu is sufficiently powerful

32gb of memory is good

you have a fast ssd drive though i personally like having my os applications and my working project files on separate drives

 

what versions of windows, resolve and are you using the latest drivers?

[LaFemmeEnVert]

On 11/3/2020 at 9:55 AM, Terryble said:

Hi LTT Community, I started working with the free version of DaVinci Resolve 16 recently and my rendering times are ridiculously high, the first time I rendered a video it was in 1920x1080 60f, this took 3.5 hours, it was a 38 minute long video, today I have rendered another video, but this time it was an 8 minute long video (same resolution, same fps) and it took 55 minutes, according to davinci the videos are rendering at a speed of 10 frames per second, which is extremely slow. Generally, at the beginning of the rendering the speed shoots up to about 30 frames per second but after 5 seconds it drops to 10 and it stays there.

 

Some data

 

Video files I work with: Mp4- H.264 Codec - 1920x1040 resolution – 60f

 

Project settings -> Timeline frame rate: 60 - Optimized Media Format: DNxHR HQX (I’m not using Optimized Media files) - Render Cache Format: DNxHR HQX

 

Render Config. -> Format: QuickTime - Codec: H.264 - Resolution: 1920x1080 HD - Frame Rate: 60 - Quality: Restrict to 30000 Kb/s

 

*Basically, Vimeo 1080P Preset, just changed the quality from 10000 to 30000 Kb/s

 

Pc: Ryzen 9 3900X (12 Core) - Nvidia RTX 2080 8Gb - 32Gb of memory

I know nothing about video editing, rendering or DaVinci, please help.

3.bmp 5.93 MB · 4 downloads 1.bmp 5.93 MB · 3 downloads 2.bmp 5.93 MB · 3 downloads

have you checked resolve preferences, not project preferences, memory and gpu settings