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TOPIC: Does LWKS still recommend NVidia GPUs?

Does LWKS still recommend NVidia GPUs? 2 months, 2 weeks ago #235725

  • hugly
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The recommended system specs say under GPU:

Although we support both NVIDIA and AMD graphics cards, we strongly recommend NVIDIA as the graphics card of choice, for anyone wishing to get the most out of Lightworks.
The page shows NVidia GPUs from 2014 and refer to them as "recently tested".

Is using NVidia for best performance, instead of AMD, still a recommendation?

I'm asking, because, based on the results of tests performed by several Linux users, there's strong evidence that the GPU performance of recent NVidia GPUs with Lightworks on Linux is poor, compared with AMD hardware with similar technical specifications.
It's better to travel well than to arrive...

Re: Does LWKS still recommend NVidia GPUs? 2 months, 1 week ago #236144

  • NeGaT1Ve
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You're right on the part where Lightworks hasn't really updated their page. It might be that the NVIDIA GPU that you use has been around for quite a while. In the end the GPU that gives you the best performance is what matters.

According to you, the AMD graphics card works best so I recommend that you use that one.

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237104

  • HKGuns
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I don't know, this Intel / NVIDIA combination works pretty well on the Windows platform.

Testing host to GPU transfer
701.37fps

Testing GPU to host transfer
515.89fps

Testing shader performance
66193.6fps

Testing playback performance
742.34fps

Testing render performance
276.12fps

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237111

  • hugly
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When saying pretty well, perhaps you have found official documentation on what those tests mean and which impact they have on real world performance? If you have, would you mind sharing it?
It's better to travel well than to arrive...
Last Edit: 2 months ago by hugly.

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237114

  • hugly
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HKGuns wrote:
Testing shader performance
66193.6fps

As a matter of interest, if you execute three GPU tests in a row, does the value shown for the shader performace change significantly?
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Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237127

  • HKGuns
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Nope, just comparing to what others have posted. Haven't tried running them consecutively, so don't know.

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237151

  • geomcd1949
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I think those damned tests tell if you're using Linux or not. And Mr. HKGuns clearly is NOT.
North Carolina, USA
Ubuntu 20.04 LTS
AMD Ryzen 9 3950X
970 EVO NVMe M.2 SSD 1TB x2
128GB DDR4
AMD Radeon RX 6800 KO
~X-Keys Pro 68 key USB Jog/Shuttle controller
*Galaxy S7 with Filmic Pro*
*2xJVC GY-HM150*
Last Edit: 2 months ago by geomcd1949. Reason: added profanity for emphasis

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237156

  • hugly
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Hi,

I see that you have a quite beefed machine. Are the values of your GPU test far away from what HKGun shows (don't trust the first run)?
It's better to travel well than to arrive...

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237157

  • geomcd1949
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This image is hidden for guests. Please log in or register to see it.

Hence the profanity.

(This is with the 2080 Super GPU.)
North Carolina, USA
Ubuntu 20.04 LTS
AMD Ryzen 9 3950X
970 EVO NVMe M.2 SSD 1TB x2
128GB DDR4
AMD Radeon RX 6800 KO
~X-Keys Pro 68 key USB Jog/Shuttle controller
*Galaxy S7 with Filmic Pro*
*2xJVC GY-HM150*
Last Edit: 1 month, 3 weeks ago by geomcd1949.

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237158

  • hugly
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The shader performance shown on Linux is nonsense anyway, at least if the test uses the same algorithms as on Windows, but that doesn't look healthy regarding your hardware.

This is what Lightworks 2020 on Ubuntu 18.04, running in a virtual machine, hosted under Windows 10 (on a 12-core AMD 1920x, 12 cores, 32 GB - GTX 1060 6GB) shows:

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I'd suggest trying different drivers.
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Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237159

  • geomcd1949
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Will take your advice and try a different driver -- in an AMD card.

Here are the pathetic numbers from an old dual Xeon machine with a Quadro K4200,

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North Carolina, USA
Ubuntu 20.04 LTS
AMD Ryzen 9 3950X
970 EVO NVMe M.2 SSD 1TB x2
128GB DDR4
AMD Radeon RX 6800 KO
~X-Keys Pro 68 key USB Jog/Shuttle controller
*Galaxy S7 with Filmic Pro*
*2xJVC GY-HM150*

Re: Does LWKS still recommend NVidia GPUs? 2 months ago #237160

  • jwrl
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Just a reminder: the figures that you get for host/GPU and GPU/host times will vary depending on what else is happening on the PCIe bus. That may in turn affect shader performance to a degree. Since playback and render performance are more CPU dependant they should not vary so much.
Last Edit: 2 months ago by jwrl.

Re: Does LWKS still recommend NVidia GPUs? 1 month, 4 weeks ago #237203

  • Jpaulbiss
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geomcd1949 wrote:

Hence the profanity.


I can almost match that and beat it in some places:

GPU test
Hardware: HP Elitebook 840, i5-6200U CPU @ 2.30GHz, 2xDell U2312HM, builtin GPU
Memory : 1.8 GB / 7.7 GB
CPUs : 4

Software: Ubuntustudio 20.04LTS

Testing Host to GPU transfer
370.94 fps

Testing GPU to Host transfer
184.64 fps

Testing shader performance
69798.15 fps

Testing playback performance
133.93 fps

Testing render performance
100.08


[Edit] I would like to know how the AMD GPU works with Linux, since my D30 has retired itself, i am looking for a replacement. [/Edit]
HP Elitebook 840, 2xDell U2312HM, UbuntuStudio 20.04 LTS, Lightworks Keyboard, Shuttle Pro 2 which works sometimes
Last Edit: 1 month, 4 weeks ago by Jpaulbiss.

Re: Does LWKS still recommend NVidia GPUs? 1 month, 4 weeks ago #237210

  • geomcd1949
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Here's the same machine with a Radeon RX 6800.

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North Carolina, USA
Ubuntu 20.04 LTS
AMD Ryzen 9 3950X
970 EVO NVMe M.2 SSD 1TB x2
128GB DDR4
AMD Radeon RX 6800 KO
~X-Keys Pro 68 key USB Jog/Shuttle controller
*Galaxy S7 with Filmic Pro*
*2xJVC GY-HM150*

Re: Does LWKS still recommend NVidia GPUs? 1 month, 4 weeks ago #237213

  • hugly
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That looks significantly better.

However, those tests don't tell much about real world performance, as we all know. If you can find the time, do you see a chance of running the GPU test sequence with both GPUs on the same machine?

www.lwks.com/index.php?option=com_kunena&func=view&catid=29&id=233151&limit=15&limitstart=15&Itemid=81#234080
It's better to travel well than to arrive...
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