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Are the NVIDIA RTX video cards good for video editing?

Written on October 1, 2018 by Matt Bach
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The new RTX series from NVIDIA are not very exciting for Adobe applications, but they are great for DaVinci Resolve giving up to 20% higher performance than the GTX 1080 Ti. These cards are also very interesting cards for the future due to the addition of two major new features: Tensor cores and RT cores.

Are Tensor Cores used in video editing?

While already available on the more expensive Titan V GPU, the RTX line introduces tensor cores at a more reasonable price point. These tensor cores operate alongside the normal CUDA cores that traditionally do the heavy lifting, but are designed specifically for machine learning inference (running already created and trained machine learning models). Blackmagic has already announced that they will be using these cores in DaVinci Resolve 15 to "accelerate AI inferencing for graphics enhancement", but so far there has been no word from Adobe. Even if implemented fully, these cores will likely not improve things like live playback FPS or export times, but they will be used for things like shot color matching, denoiser, or automatic masking.

Are RT Cores used in video editing?

RT cores are brand new in this generation of graphics cards, and are specialized for a single type of operation: ray tracing. It is possible that these cores may be used in VFX or motion graphics, but if or when they will take advantage of is currently unknown.

These new features are primarily what you are paying for with the new RTX cards, so the primary reason to purchase them is to future proof your workstation so it will be able to take advantage of the tensor and RT cores in/when the future if the developers add support for them. It is currently unknown exactly how these cores will be utilized by Adobe or Blackmagic, or the kind of performance gains we may see once they are. However, we have already looked at how the RTX 2080 and 2080 Ti perform in a number of video editing applications as they are today:

Is the RTX 2080 8GB worth it for video editing?

In most video editing applications, you are unlikely to notice a difference between the RTX 2080 and a similarly priced 1000-series GTX card. In fact, you should get more VRAM from an older GTX card which makes the RTX 2080 slightly worse for 6K+ workflows. The main reason to invest in the RTX 2080 is to future proof your system in the hope that the new Tensor and RT cores will be leveraged in the future. Blackmagic has already announced that Resolve 15 will take advantage of tensor cores in the future, but Adobe has not yet announced their plans for these cores.

Is the RTX 2080 Ti 11GB worth it for video editing?

For Adobe applications, you are unlikely to notice a difference between the RTX 2080 and a similarly priced 1000-series GTX card. However, in DaVinci Resolve the RTX 2080 Ti performs on par with the much more expensive Titan V. For most users, however, the main reason to invest in the RTX 2080 is to future proof your system in the hope that the new Tensor and RT cores will be leveraged in the future. Blackmagic has already announced that Resolve 15 will take advantage of tensor cores in the future, but Adobe has not yet announced their plans for these cores.

 

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Tags: Premiere Pro, After Effects, DaVinci Resolve, RTX, 2080, 2080 Ti
Turing

https://www.nvidia.com/down...

"Provides the optimal gaming experience with support for the Windows 10 October 2018 Update including the public release of DirectX Raytracing (DXR)"

Nvidia GeForce 416.16 WHQL driver released.

Posted on 2018-10-04 13:26:40

Nice! I don't think this will affect video editing too much since even most 3D rendering apps use OpenCL or CUDA, but it is a pretty big deal for game development and other real-time visualization applications. If anyone comes across this comment and doesn't know what this is, this is a pretty good breakdown: https://blogs.msdn.microsof...

Posted on 2018-10-04 16:21:34
Squeaky_1

Could you please comment on lesser applications (for the masses) like Cyberlink Power Director (just to name one) and the advantage or otherwise of using even a GTX1080 let alone an RTX2080. Will such powerful GAMING cards help much in video software other than the Adobes and DaVincis that you always talk about? Hard to find this info on the web - thank you very much.

Posted on 2018-10-08 15:01:17

Our focus is on workstations for professionals (or hobbiests looking to break into the professional space), so we typically spend our time on the more popular applications used in those fields. For software like Power Director, we really can't say since we haven't benchmarked these cards in that software. Some might make great use of the GPU so the RTX cards will be great, but smaller editing software tends to lag behind a bit in terms of taking advantage of hardware so in most cases by bet is that these GPUs won't really give you that much.

Posted on 2018-10-08 16:34:58

What rig would be recommended for After Effects .PNG image sequences/comps at or around 110 Megapixels? Yes, you read that right.

Posted on 2018-10-13 06:05:34

It depends on how much Ram you want for RAM previews and how much RAM something like that needs in the first place since I'm really not sure. Highest per-core performance on the CPU is best (currently that would be the i7 8700k) but if you need more than 64GB of RAM then you might need to settle for something like the i7 7820x. GPU shouldn't matter much, just get a mid-range NVIDIA like a GTX 1060/1070.

Storage is something to consider as well. I'm not sure what the effective bitrate is with that kind of sequence, but I have a hard time believing that you won't simply be CPU bottleneck so I doubt using a NVMe drive over a normal SSD will make that much of a difference beyond disk cache write speed.

Keep in mind that the Intel 9th Gen CPUs have been announced and we will have benchmarks up on Oct 19th for AE and other software. Intel has also announced the new X-series CPUs, but I don't think a launch date has been publicly announced

Posted on 2018-10-13 06:14:52

Thanks a ton for the quick reply! I've been struggling to find a reasonable rig to manage this massive project even with 1/16th scaling. I parted out a $6,000 rig on Newegg and an $8,000 Puget Systems rig but don't have much confidence that After Effects will even see a massive gain in render times proportionate to a price like that compared to the rig we have.

Currently the best rig we tried is:

i7-3930k @ 4.3GHz (which in the benchmarks I've seen isn't leaps and bounds slower than an i9-7900x or i7-8700k in single thread performance).
16GB DDR3 @ 1866 (trying to get at least 64GB installed but I don't have high hopes for improving render times, After Effects encoder reports average of 5 frames per second)
Samsung Evo SSD Scratch
Samsung Evo SSD Read
RTX 2080Ti

After Effects takes 1 hour to render 10 seconds to our needed FlexRes Performance container.

Posted on 2018-10-13 06:23:13

If I had to guess, I think a 8700k would render about 40% faster than a 3930k in After Effects. That's a pretty good speedup really and might get even better with something like the new i9-9900k.

Something else you might consider looking into is network rendering. We haven't done too much with it quite yet, but it is on our to-do list. It wouldn't help with RAM Preview, but if you want to cut down on final render times, splitting it up across multiple machines is likely going to be the only way to make big improvements to your render times.

Posted on 2018-10-13 16:38:57
-Sulli-

I use Davinci Resolve and will be building a new computer very soon. From various articles I've read I'm steering towards a 2080 8GB card over the older 1080Ti 11 GB as they are similarly priced in the UK (although 1080Ti seems to be harder to find in stock now) and I will only be working on 4k video or lower. What I'm confused about is if there are better variants of the 2080 8GB card for editing? A lot of the variants of 2080 8GB graphics cards seem to be marketed towards gaming and I don't really know how that relates to editing experience, for example some have higher boast performance, some 3 fans instead of 2, some with OC in the name etc. I'm confused.

Posted on 2018-12-03 12:41:13

Pretty much all GPUs these days (outside of the workstation Quadro/Radeon Pro) will have all those different types. The ones with bigger heatsink and more fans are just designed to run cooler and quieter, OC (should be the same as the ones with higher boost clocks) are set to run above NVIDIA's official specifications in order to get higher performance. Personally, if this is going into a system that is designed to get work done, I would shy away from the fancy cards and stick with something as close to stock as possible. So, dual fan, not OC if you can help it. In apps like Resolve, those features aren't going to make a big difference, but the cards tend to be less stable. To me, I would much rather have a GPU that is less likely to give me any problems than one that is theoretically a few percent faster.

Posted on 2018-12-03 17:19:53