2x 1080ti or 3090ti?

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JG Photo

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2x 1080ti or 3090ti?

PostWed Apr 27, 2022 8:56 pm

I mostly edit 4k 60 footage. The system still struggles in playback, especially when I add FX. I am considering a 3090 ti for that and to free up slots on my Pcie 3.0 MB. Has anyone made this jump? The rest of the system specs are below.
Last edited by JG Photo on Wed Apr 27, 2022 8:59 pm, edited 1 time in total.
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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angeludis

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Re: 2x 1080ti or 3090ti?

PostWed Apr 27, 2022 8:57 pm

With my Quadro P2000 I don't see any stutter on 4K 60p.
However there is a long way in between 1080 and 3090.
Last edited by angeludis on Wed Apr 27, 2022 9:45 pm, edited 1 time in total.
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mpetech

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Re: 2x 1080ti or 3090ti?

PostWed Apr 27, 2022 9:28 pm

JG Photo wrote:I mostly edit 4k 60 footage. The system still struggles in playback, especially when I add FX. I am considering a 3090 ti for that and to free up slots on my Pcie 3.0 MB. Has anyone made this jump? The rest of the system specs are below.


The single 3090ti would be better.
Performance gain from additional GPU is not linear. The best-case scenario is 70% from single to dual. Probably closer to 55%. And less with additional GPU.

https://www.pugetsystems.com/labs/artic ... ling-1904/

2 x 2080ti slightly beats a single 3090. Logic dictates dual 1080 ti will fall under a single 3090.

Also, additional GPU does not mean more usable VRAM. The 3090 will be able to handle large frames with its 24GB of VRAM.
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Andrew Kolakowski

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Re: 2x 1080ti or 3090ti?

PostWed Apr 27, 2022 9:58 pm

Yes, single 3090 should be easily better option for many reasons. Also fact it’s current model compared with ageing 1080.
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Re: 2x 1080ti or 3090ti?

PostThu Apr 28, 2022 12:20 am

If you have the money, I would consider a RTX A5000 (it's like a 3080 but with 24GB of VRAM, and consuming way less than a 3090, 230 W vs 350 and more W).

I have a 3090 and I wish I had bought a RTX A5000, but at the time, I got a relatively good deal during the gpu price "crisis" for the 3090 (it was available lol). This card produces so much eat, the VRAM is on the back of the card so you need a good air flow in your case.

I tweaked the voltage with MSI afterburner just to get lower temps and a bit lower electric consumption.

BUT, yeah, it's way better than having two 1080
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Ivor_Bigunn

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Re: 2x 1080ti or 3090ti?

PostThu Apr 28, 2022 6:24 am

I upgraded from a 1080Ti to a regular 3080.

Some of my renders speeded up by a factor of 4, so I am delighted. This was using 2X SuperScale, and/or Speed Warp frame rate doubling.

I think 2X 1080Ti's could only improve your performance by max 2, and maybe less.

Good Luck


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Re: 2x 1080ti or 3090ti?

PostThu Apr 28, 2022 10:39 am

The thing is also that NVENC/NVDEC is almost unusable slow and bad on these old 1080 Ti cards. Easy overlook. I had a 1080+2080 for awhile and I'm so glad to have 3090 now.
5950x, 3090, 128GB.
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Re: 2x 1080ti or 3090ti?

PostThu Apr 28, 2022 1:43 pm

From Peter Chamberlain:

Resolve uses the GPU memory on every card it has in the system that is selected for Resolve use.

Generally it doesn't share memory to other cards.. lets not get into exceptions.
If you have a GPU in the system but its not selected in preferences, its just a waste of space.

If you have mis matched GPUs, the slowest GPU will define how fast the system can process.

If you have GPUs with difference memory capacity, the lowest capacity will define how big an image and the type of processing before its runs out of memory. The cards with extra memory waste that memory.

If you have a separate UI GPU, that's something we generally don't favor now, whereas we did 10 years ago.

If you have one more powerful and more memory GPU compared to a second, use the better one for the UI but not as UI only. It might make a little difference if the gpu performance is close.

One very powerful GPU with lots of RAM is better than two average GPUs, for many reasons....

Anyone who says multiple GPUs are a waste of time are picking a use case that doesn't need them, after all the large facilities that put 4 x 24GB GPUS in their system are spending that money for fun.

Most users will be happy with one good GPU.

All image processing is in GPU.

Some new GPUs, with the Resolve Studio version. also support compression and decompression in a hardware stage in the GPU.

GPU driver selection makes a big difference in reliability.
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JG Photo

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Re: 2x 1080ti or 3090ti?

PostThu Apr 28, 2022 8:46 pm

Thank you all. I ordered a Asus TUF RTX 3090 ti today. I'll have it tomorrow.
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Re: 2x 1080ti or 3090ti?

PostThu Apr 28, 2022 10:50 pm

JG Photo wrote:Thank you all. I ordered a Asus TUF RTX 3090 ti today. I'll have it tomorrow.


Good choice, I have this one
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Re: 2x 1080ti or 3090ti?

PostFri Apr 29, 2022 7:02 am

You can use OpenRGB to turn off all the RGB non sense permanently using the on card controller. You can delete the software afterwards.
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Re: 2x 1080ti or 3090ti?

PostFri Apr 29, 2022 3:16 pm

peterjackson wrote:You can use OpenRGB to turn off all the RGB non sense permanently using the on card controller. You can delete the software afterwards.

Thanks for the suggestion. This is a unknown area to me. I found and downloaded the OpenRGB software, but not sure where to go from here when I get the 3090 ti installed.
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Re: 2x 1080ti or 3090ti?

PostFri Apr 29, 2022 3:24 pm

Don't do it. This is, AFAIK, uncharted territory for Resolve. It's also unclear that there would be any advantage to you.
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Re: 2x 1080ti or 3090ti?

PostFri Apr 29, 2022 4:20 pm

When you launch OpenRGB there should be a tab for your 3090 somewhere. There you can turn off the LEDs. And then there is a "save to device" button than stores that state on the card so it will be off after reboot. Then you can delete the software.

If you don't see your card it's not yet in the database and you need to wait a bit. It workes fine with my Strix 3090 OC.

There is no benefit other that the LEDs are off. I find them annoying. But I can also understand not wanting to touch anything on a new GPU.
5950x, 3090, 128GB.
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Re: 2x 1080ti or 3090ti?

PostMon May 02, 2022 12:08 am

Received the 3090 ti and installed it today. This is one huge mutha. I had to reroute many cables. The distance between the end of the board and the front drive bay is a slim mm. I'll start testing this week.
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Re: 2x 1080ti or 3090ti?

PostMon May 02, 2022 1:57 pm

I stopped using cases. I just put everything on a bench table: https://streacom.com/products/bc1-v2-open-benchtable/
5950x, 3090, 128GB.
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Re: 2x 1080ti or 3090ti?

PostMon May 02, 2022 2:35 pm

I installed my 3090tiFE yesterday and it barely fit in my case.

The new speed is superb.
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Re: 2x 1080ti or 3090ti?

PostMon May 02, 2022 6:09 pm

Should the gpu preferences setting in Resolve Studio be left at "Auto" for the 3090 ti?
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Re: 2x 1080ti or 3090ti?

PostMon May 02, 2022 6:19 pm

JG Photo wrote:Should the gpu preferences setting in Resolve Studio be left at "Auto" for the 3090 ti?


I have in CUDA...
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Re: 2x 1080ti or 3090ti?

PostWed May 04, 2022 7:08 pm

I have tested the 3090 for a couple of days. I'm experiencing this random video stutter that I did not experience on the twin 1080. I thought it may be a cache issue, bot there is almost 0 in the cache. I am monitoring at native 4k 59.94. The ram is ddr4 3200. The system in a PCIe 3. I don't have a clue.
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Re: 2x 1080ti or 3090ti?

PostThu May 05, 2022 8:03 am

Well, you didn't give an details. But some things:

Resolve GUI viewers cannot display smooth 60fps on a 60hz s screen

Toggle GPU hardware scheduling in Windows

Toggle Game Mode

Downgrade driver to 472.xx

Set GPU power mode to high performance (never made any difference me, try last)
5950x, 3090, 128GB.
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Re: 2x 1080ti or 3090ti?

PostThu May 05, 2022 1:39 pm

waltervolpatto wrote:I installed my 3090tiFE yesterday and it barely fit in my case.

The new speed is superb.

How are the temps?
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Re: 2x 1080ti or 3090ti?

PostThu May 05, 2022 2:16 pm

Maxwellx wrote:
waltervolpatto wrote:I installed my 3090tiFE yesterday and it barely fit in my case.

The new speed is superb.

How are the temps?


Cool... I have good ventilation in my case: 2 vent in front, (intake) 3090ti pushing out, cpu cooling pulling in and three fans on top extracting...
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Re: 2x 1080ti or 3090ti?

PostThu May 05, 2022 2:19 pm

peterjackson wrote:Resolve GUI viewers cannot display smooth 60fps on a 60hz s screen
It always has for me. What makes you think this?
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Re: 2x 1080ti or 3090ti?

PostThu May 05, 2022 6:03 pm

peterjackson wrote:Well, you didn't give an details. But some things:

Resolve GUI viewers cannot display smooth 60fps on a 60hz s screen

Toggle GPU hardware scheduling in Windows

Toggle Game Mode

Downgrade driver to 472.xx

Set GPU power mode to high performance (never made any difference me, try last)


Thanks for the suggestions!

Which details would be helpful?

I am using the Nvidia Studio Drive not the Gaming driver,

The GPU hardware scheduling improved the issue, but did not entirely fix it.

There is a ECC option in the Nvidia driver application. Not sure how it would impact performance.
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Re: 2x 1080ti or 3090ti?

PostThu May 05, 2022 8:00 pm

Jim Simon wrote:
peterjackson wrote:Resolve GUI viewers cannot display smooth 60fps on a 60hz s screen
It always has for me. What makes you think this?
Proper testing with tearing test files as countless others confirmed on Mac and win. I don't want to hijack this thread. Please use search if you really care.
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Re: 2x 1080ti or 3090ti?

PostThu May 05, 2022 9:15 pm

Understood.
My Biases:

You NEED training.
You NEED a desktop.
You NEED a calibrated (non-computer) display.
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Re: 2x 1080ti or 3090ti?

PostTue May 10, 2022 7:34 pm

waltervolpatto wrote:I installed my 3090tiFE yesterday and it barely fit in my case.
The new speed is superb.


How's that card doing Walter? Note you mentioned you had good cooling, airflow in your case and it was running cool. How about noise level? I think my budget has been skewed by the crazy prices we've seeing for much lesser cards, but it seems this big expensive card is actually available and at at MSRP. How powerful is your PSU?
Let's have a return to the glory days, when press releases for new versions included text like "...with over 300 new features and improvements that professional editors and colorists have asked for."
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Re: 2x 1080ti or 3090ti?

PostWed May 11, 2022 11:12 am

Andy Mees wrote:
waltervolpatto wrote:I installed my 3090tiFE yesterday and it barely fit in my case.
The new speed is superb.


How's that card doing Walter? Note you mentioned you had good cooling, airflow in your case and it was running cool. How about noise level? I think my budget has been skewed by the crazy prices we've seeing for much lesser cards, but it seems this big expensive card is actually available and at at MSRP. How powerful is your PSU?


I dont remember how powerful is my PSU, the noise is ok, I have a SAS enclosure with mechanical drives that does more noise!...
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Re: 2x 1080ti or 3090ti?

PostSun May 22, 2022 6:32 pm

I installed DR 18.3 studio beta yesterday and the original issue for which I began the thread , the video stuttering and freeze-ups is worse then any version of 17. These are simple 4k/60 projects with only transitions, titles and background audio/music. In my case I can only conclude that DR is/has been the source of my issues. With the new 3090 ti and the doubling of memory (128gb) I have way more horsepower in my system than needed to do this work. :(
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Re: 2x 1080ti or 3090ti?

PostSun May 22, 2022 6:41 pm

Is it some old project ?
Have you installed fresh Nvidia driver? If not do it- advanced/clean install.
Then start new project and create same timeline - video etc. as in old one.
It's definitely some Resolve/OS/drives issue.
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Re: 2x 1080ti or 3090ti?

PostSun May 22, 2022 7:39 pm

Unless you're absolutely desperate to get a new card and have disposable cash go for it. I wouldn't go for a 3090Ti. They're way too expensive still, a non-TI 3080 is more than enough. They're around $$1300 vs an average of $2k for a 3090ti.
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Re: 2x 1080ti or 3090ti?

PostMon May 23, 2022 1:34 pm

Scrubzami wrote:Unless you're absolutely desperate to get a new card and have disposable cash go for it. I wouldn't go for a 3090Ti. They're way too expensive still, a non-TI 3080 is more than enough. They're around $$1300 vs an average of $2k for a 3090ti.


My take is that if you keep a card for long time (I kept my 1080ti for 5 years), you want to get the "best" card available: yes, it's 2k, but average that over 5 years...
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Re: 2x 1080ti or 3090ti?

PostMon May 23, 2022 2:08 pm

I tend to upgrade when I can get 2x performance at the price I can afford and which is reasonable compared to the jump in performance...these days it means cca 2x the price of your current GPU.

That's why I hold on to the Rx580....somehow in Resolve, GPUs at more than twice the price are not twice as fast...weird...
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Re: 2x 1080ti or 3090ti?

PostMon May 23, 2022 2:31 pm

Scrubzami wrote:Unless you're absolutely desperate to get a new card and have disposable cash go for it. I wouldn't go for a 3090Ti. They're way too expensive still, a non-TI 3080 is more than enough. They're around $$1300 vs an average of $2k for a 3090ti.



It is all about economics. In a room charging by the hour, $700 is not much. A drop in the bucket, in fact.

If you work from a home office and charge much less, then $700 is a bigger consideration.

In my home gaming rig, I tend to skip a generation and stay on the xx70 series of Nvidia GPUs.
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Re: 2x 1080ti or 3090ti?

PostWed May 25, 2022 10:48 pm

Andrew Kolakowski wrote:Is it some old project ?
Have you installed fresh Nvidia driver? If not do it- advanced/clean install.
Then start new project and create same timeline - video etc. as in old one.
It's definitely some Resolve/OS/drives issue.


Thanks for the suggestions. I did the clean Nvidia install and recreated the project from scratch. The problem went away for a couple of hours but came back. I have monitored system temps and they are within range. I'm beginning to think there may be a Pcie bus conflict or I might just remove and do a clean install of DR.
System: (Custom Built) Asus 690-A MB, Intel I9 12900k, 128gb DDR5 5600. Asus RTX 3090 ti, 2-500mb SSD's (Mirrored), 1tb HD, 2 1tb SSD's (Raid 0), 2-2tb M.2 Pcie (Raid 0), 24tb NAS. Dell 4k 32" Main, ViewSonic 27" 4k-Resolve KB, DVR Studio 18.1.
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Andrew Kolakowski

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Re: 2x 1080ti or 3090ti?

PostThu May 26, 2022 5:52 pm

Sounds like some deeper issue. Annoying to debug.

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