Nvidia RTX 4080 or AMD RX 7900 XTX for Resolve?

The previous gen Nvidia cards - Ampere for e.g. - are higher power consumption and can have transient spikes so you need a high quality psu - and at least 850w - preferably more wattage.

officials recommendations for the 40 series.

https://nvidia.custhelp.com/app/answers ... ifications

Do I need to upgrade my PSU for the RTX 40 Series?
The RTX 40 Series doesn’t require a new power supply if you already meet the PSU wattage recommendations. The RTX 4090 TGP is 450 W and the minimum recommended PSU is 850 W. The 4080 16GB TGP is 320 W with a minimum recommended power supply of 750W, and the minimum recommended power supply for the 4080 12GB is 700W.

Any chance you guys with 7900 XT/X cards use multiple monitors or high refresh rate monitors? The other concern I had with considering a 7900 series card is the weird high power consumption on idle. It usually happens if the user is using more than one monitor, especially, if they don't use the same refresh rate. Also, it often happens if it's higher than 60 hz. Perhaps, you guys have heard of this - it is a hot (pardon the pun) topic for AMD gpu users on forums. There's mixed reports of a new driver solving it - I have read quite a lot of claims that it didn't help.
Sorry, to change the topic somewhat.

I am waiting for the Black Friday and I dunno if I should wait for the release of the other Nvidia cards - 4070 Ti Super, 4070 Super, 4080 Super (probably too exp. for me) and hey, a new AMD gpu is going to be released - 8800 XT (supposedly, to reach performance of the 7900 XT) - on the RDNA 4 architecture. 'Could be a decent DR card or maybe decent in Blender - yeah, right....sure...on the 2nd one.

If this results in some more gpus on the used/2nd market or lowered prices on current cards - that can only help me and some of us who are looking to get a new gpu soon, right?

It happens only with mismatched monitors. And its not really an AMD thing. Its hard for the GDDR memory to downclock when having mismatched resolutions and high refresh.

As it is now :

- high refresh 4K and lower one monitor idle works properly
- under 144Hz 4K two monitors idle works properly
- mismatched 60hz and 144hz is on a case by case, good brand monitors idle properly, others do not and AMD is working with manufacturers to include more models manually (at least that's what they wrote in driver details at some point).

Idle power consumption is a tad higher on 7900 series vs 4000 series as they're chiplet based.

'Could be a decent DR card or maybe decent in Blender - yeah, right....sure...on the 2nd one.

You seem dead set on an Nvidia card so why not just get that? With the China ban on the 4090 I'm sure you'll find one at a decent price.

Any chance you guys with 7900 XT/X cards use multiple monitors or high refresh rate monitors?

Right now I'm running 2 1080p 60hz monitors off my 7900 XTX. In a few months it will be 2 4k Eizo CS2740s.

The other concern I had with considering a 7900 series card is the weird high power consumption on idle.

I uses Hwinfo and a custom rainmeter skin to monitor all my systems critical parameters, so I can give you details.

• Just my desktop with rainmeter running/updating once a second : 8-15 W
• chrome (hardware accelerated) with one tab open : 20 - 25w
• chrome (hardware accelerated) with one tab open, and fusion 360 (gpu accelerated cad software open): 20 - 25w
• The highest is been in the last hour was 75-80W while I was manipulating a complex project in fusion 360.

HWinfo.jpg (89.51 KiB) Viewed 2251 times

That do no answer his question regarding idle consumption (my idle means 3 separated browser opened and about 50 tabs in each 12,5GB memory consumption. 5800H is 5-6w, RTX3060 13.5 w.

That do no answer his question regarding idle consumption (my idle means 3 separated browser opened and about 50 tabs in each 12,5GB memory consumption. 5800H is 5-6w, RTX3060 13.5 w.

The issue is often happening with use of multiple monitors - usually, with different refresh rates (and often different resolutions) used. VMFXBV mentioned some of the situations/configurations ppl might have - he sounds like he's familiar with the issue. I only have 1 display (4K TV) right now but it sounds like new drivers aren't solving it and you never know what one might do in the future - I might want another display one day.

The other issue with the 7900 series - 7900 XTX, in particular, is overly hot temps with the hot junction and memory - but, supposedly, this has been solved and is mostly regarding reference models. I'm not as concerned about this particular issue. I suppose my concerns about these issues is especially because I'm considering used/2nd hand cards and I can't just return a gpu if it has a problem, obviously.

The other issue with the 7900 series - 7900 XTX, in particular, is overly hot temps with the hot junction and memory - but, supposedly, this has been solved and is mostly regarding reference models.

Yea that issue was a batch manufacturing problem. Some percentage of the Initial AMD manufactured reference cards didn't have enough water in the vapor chambers.

That do no answer his question regarding idle consumption (my idle means 3 separated browser opened and about 50 tabs in each 12,5GB memory consumption. 5800H is 5-6w, RTX3060 13.5 w.

The issue is often happening with use of multiple monitors - usually, with different refresh rates (and often different resolutions) used. VMFXBV mentioned some of the situations/configurations ppl might have - he sounds like he's familiar with the issue. I only have 1 display (4K TV) right now but it sounds like new drivers aren't solving it and you never know what one might do in the future - I might want another display one day.

The other issue with the 7900 series - 7900 XTX, in particular, is overly hot temps with the hot junction and memory - but, supposedly, this has been solved and is mostly regarding reference models. I'm not as concerned about this particular issue. I suppose my concerns about these issues is especially because I'm considering used/2nd hand cards and I can't just return a gpu if it has a problem, obviously.

I have the laptop monitor 17.3" 1920x1080 144mhz and a 24" Proart 1920x1200 75hz.
My 3060 is not in Optimus mode, so it is always on and bypassing the 5800H gpu in that processor.

My first post here on the Black Magic forum.

Good to see that a lot of people/users have the same question.
Me2 had this question, Nvidia RTX 4080/90 or AMD RX 7900 XT/XTX to Resolve.
The price different here is around the €1000 +/-1100 dollar if i am right. (24gb versions).

I did find info what i did not read in this thread/topic from AMD
There is a difference between the 7900XT and the XTX.
And there is a difference in DR 18.5 en 18.6 for the XTX

The 7900XTX works great with DR 18.6
Read it
community.amd.com/t5/ai/ai-accelerated-video-editing-with-davinci-resolve-18-6-amp-amd/ba-p/638252
When looked ad pudget test, most cards are the XT version, and the few XTX is clearly better in those test. of the DR-18.6 version.

I have already updated my processor AMD Ryzen 9 5950X, 3,4 GHz (4,9 GHz Turbo Boost) socket AM4
And a new PSU, the old one was 650 watt and not stable anymore.
Delta GPS - 1000DBA, 1000W power supply(6x PCIe, Cable Management)
And 2 Noctua NF-S12A PWM 120x120x25 (the old one's did make a lot of noise fans.

So there is only to do the video cart, for now there is still the "old" NVIDIA GTX 1660 super with 6gb VRAM.
And it works surprising good for Full HD even 4k Nikon .Nev raw is no problem. Until i start to edit in a more demanding environment.

Long story short.
I have already put a GIGABYTE Radeon RX 7900 XTX GAMING OC 24G in the shopping cart, just only need to pay
I did choose gigabyte, there my motherboard is a gigabyte B450.

Why not pay it yet.
Well, i want to update the whole pc end this year, so that's still a lot of time to go.
The GIGABYTE Radeon RX 7900 XTX GAMING OC 24G is PCIe 4.0
My motherboard is express PCIe
its backwards compatible so it can go in the new pc when needed, perhaps i put another one beside it

Ow, and don't forget that a lot of motherboards do a pci lane switch.
youtube.com/watch?v=I4umSUJyArs

If you decide to go with 7900XTX I would go with Sapphire not Gigabyte but if that card you have currently works fine, why waste money until you have to?

Best bang for the buck (imho) right now is the 7900GRE card.

So there is only to do the video cart, for now there is still the "old" NVIDIA GTX 1660 super with 6gb VRAM.
And it works surprising good for Full HD even 4k Nikon .Nev raw is no problem. Until i start to edit in a more demanding environment.

My first post here on the Black Magic forum.

Good to see that a lot of people/users have the same question.
Me2 had this question, Nvidia RTX 4080/90 or AMD RX 7900 XT/XTX to Resolve.
The price different here is around the €1000 +/-1100 dollar if i am right. (24gb versions).

I did find info what i did not read in this thread/topic from AMD
There is a difference between the 7900XT and the XTX.
And there is a difference in DR 18.5 en 18.6 for the XTX

The 7900XTX works great with DR 18.6
Read it
community.amd.com/t5/ai/ai-accelerated-video-editing-with-davinci-resolve-18-6-amp-amd/ba-p/638252
When looked ad pudget test, most cards are the XT version, and the few XTX is clearly better in those test. of the DR-18.6 version.

I have already updated my processor AMD Ryzen 9 5950X, 3,4 GHz (4,9 GHz Turbo Boost) socket AM4
And a new PSU, the old one was 650 watt and not stable anymore.
Delta GPS - 1000DBA, 1000W power supply(6x PCIe, Cable Management)
And 2 Noctua NF-S12A PWM 120x120x25 (the old one's did make a lot of noise fans.

So there is only to do the video cart, for now there is still the "old" NVIDIA GTX 1660 super with 6gb VRAM.
And it works surprising good for Full HD even 4k Nikon .Nev raw is no problem. Until i start to edit in a more demanding environment.

Long story short.
I have already put a GIGABYTE Radeon RX 7900 XTX GAMING OC 24G in the shopping cart, just only need to pay
I did choose gigabyte, there my motherboard is a gigabyte B450.

Why not pay it yet.
Well, i want to update the whole pc end this year, so that's still a lot of time to go.
The GIGABYTE Radeon RX 7900 XTX GAMING OC 24G is PCIe 4.0
My motherboard is express PCIe
its backwards compatible so it can go in the new pc when needed, perhaps i put another one beside it

Ow, and don't forget that a lot of motherboards do a pci lane switch.
youtube.com/watch?v=I4umSUJyArs

That's interesting that the RTX 1660 Super performs so well. That's my current gpu - I borrowed after selling my 10gb 3080. I thought I'd have enough for a better gpu by now. Haha... Actually, not that funny.
I should get back to DR and test the Nvidia card. I'm saving up for either a 4080 or 7900 xtx but I'm planning on buying used. The new 7900 xtx cards have come down in price for me but they're still a bit too high, I think. I thought used 4080s would be a bit cheaper after the intro of the 4080 Super but nope - only occasionally and they're snapped up pretty quickly.

The 7900 xtx, afaik, is especially good at Fusion, RAW and a few other specific tasks? I always forget.
The 24gb is probably pretty nice to have and I am kinda curious about ROCm too - and I would like to use Linux from time to time.

So, yeah, I concur with your thoughts and am in the same boat although a 4090 is not on the radar, unfortunately - I worry about prices going up again.

If you decide to go with 7900XTX I would go with Sapphire not Gigabyte but if that card you have currently works fine, why waste money until you have to?

Best bang for the buck (imho) right now is the 7900GRE card.

So there is only to do the video cart, for now there is still the "old" NVIDIA GTX 1660 super with 6gb VRAM.
And it works surprising good for Full HD even 4k Nikon .Nev raw is no problem. Until i start to edit in a more demanding environment.

The Gigabyte is probably a lot cheaper - although, I suspect I know why you're advising against it - they had RMA issues and problems with the pcb - enough, that Gigabyte did a revision of some cards - I dunno if that's mostly Nvidia or also AMD.
The cheapest 7900 XTX cards are usually the XFX, Sapphire Pulse and now - in my area at least, are the Asrock cards. The Nitro is usually at least $200 more than the cheaper ones.

Simples. Blender. AMD is no where near close Nvidia there.
Actually in pretty much any 3D GPU render except their own.
If you di 3D work you have a strong reason to go Nvidia.
Only in Mechanical CAD Viewport AMD have some good cards.

There's an open sourced CUDA wrapper called ZLUDA that works with AMD and Intel cards and specifically in Blender there is no more discrepancy between cards of similar compute. CUDA vs ZLUDA. Optix is different.

Not that anyone cares but here's the github link:

https://github.com/vosen/ZLUDA

The cheapest 7900 XTX cards are usually the XFX, Sapphire Pulse and now - in my area at least, are the Asrock cards. The Nitro is usually at least $200 more than the cheaper ones.

I got my 7900 XTX directly from Asus for $999.99 USD in December 2022

The Gigabyte is probably a lot cheaper - although, I suspect I know why you're advising against it - they had RMA issues and problems with the pcb - enough, that Gigabyte did a revision of some cards - I dunno if that's mostly Nvidia or also AMD.
The cheapest 7900 XTX cards are usually the XFX, Sapphire Pulse and now - in my area at least, are the Asrock cards. The Nitro is usually at least $200 more than the cheaper ones.

Well, the PCB issue is a nasty one but it can be avoided by installing a support. With the massive sizes of today's flagship GPUs I don't understand how someone could use them as is.

But its more that the GPU vendors that cater both are hit and miss. Gigabyte, MSI and especially Asus use Nvidia cooler designs and just slap them on AMD cards which results in subpar cooling. On the other hand Sapphire has been consistent. Asrock has the second best XTX cooling, the Asrock Taichi one. And XFX has medium to high end ok cards. Then there's Powercolor which is hit and miss on the lower end.

I personally have a Sapphire Pulse 7900XTX and although its a tad worse than the Nitro, the difference in price isn't justified. Maybe if you care about RGB and all that garbage.

The cheapest 7900 XTX cards are usually the XFX, Sapphire Pulse and now - in my area at least, are the Asrock cards. The Nitro is usually at least $200 more than the cheaper ones.

I got my 7900 XTX directly from Asus for $999.99 USD in December 2022

Got mine for 800EUR. And a decent Sapphire Pulse which is cool and quiet. I personally avoid Asus for AMD cards. Still remember Vega64 where Asus had the worst implementation.

It's not the GIGABYTE Radeon RX 7900 XTX GAMING OC 24G
But did buy a ASRock Radeon RX 7900 XTX Phantom Gaming 24GB OC
Price different was 200€ cheaper

Did some test with it, and the performance is good. Highest temp was 68c (puget test)
And the card is quiet.

Except, i did use the Display Driver Uninstaller (DDU). (see the guru3d website)
Just to be sure, no Nvidia traces were there, what can give issues.
After installing the Asrock, i did lose a lot off codec options in DR
Now it's only only main, or main 10.
No 4.2.2, or 4.4.4 10bit options?

But most surprising for me is the AV1 codec, its fast, and to my eyes very good quality video
It make full use of the hardware in the video card

Is the Radeon better then the Nvidia, i dont now.
The amd cpu does a lott off work when editing, the gpu only in some parts, where the Nvidia gtx was ad full 100%
But when doing a mask, or in Fusion, the Rx7900xtx is the king.

So in conclusion the AMD 7900XTX is better than RTX4080?

I don't know.
In DR my CPU is used more than the GPU, with my NVIDIA 1660 it was 100% and the final rendering was just as fast, but with Nikon raw in 4k 120fps and 8k 60fps the RX 7900TXT works without stuttering or frame drops and that's why I have it, For the rest I can't say anything about it at all, I have updated my PC except for the motherboard and the RAM, so there will still be some gains to be made there.

So in conclusion the AMD 7900XTX is better than RTX4080?

It depends on your workflow. We use RAW and ProRes most of the time and for that the 7900XTX was cheaper and with 24GB VRAM. And its faster than a 4080. For other codecs it might be a tad slower but being 400 EUR cheaper was a no brainer.

For other workflows, like remote monitoring then the AMD card isn't an option yet since thats only availabe on Nvidia.

So, it really depends.

So in conclusion the AMD 7900XTX is better than RTX4080?

"Better" is obviously a loaded term. If you could buy and run both, you might be able to say a few months (or hours, as the case may be) later. The benchmarks advantages of one or the other -- although nvidia cards prevail in GPU FX, you'd never guess that from the emphasis here -- are fairly trivial, as in barely 1-2%. The differences are too small to matter.

What *will* matter in the end is quality control (see above for accounts of cards which failed that one), reliability, day to day performance (heat, noise, etc.) and driver support. How much time and aggravation will any given card cost you? Unless you can foretell the future, there are no "no-brainers" here. All you can do is rely on user reports, preferably complaints, where no one has any interest in promoting one brand or another.

The good news is, all the recommendations above, some quite passionate, come with a money-back guarantee and restitution for time lost. Yes, I'm joking.

Best bang for the buck (imho) right now is the 7900GRE card.

Not according to the reviews that are coming out now. They claim it's a little overpriced for what it is.

Best bang for the buck (imho) right now is the 7900GRE card.

Not according to the reviews that are coming out now. They claim it's a little overpriced for what it is.

Yea Imo, its literally just a release to say the released something around the same time Nvidea released the 4070 Super.

Best bang for the buck (imho) right now is the 7900GRE card.

Not according to the reviews that are coming out now. They claim it's a little overpriced for what it is.

Not sure how you got to that conclusion from that video. The conclusion was : its odd against the 7800XT
and better than the 4070 Super. And this is in games only.

I couldn't care less about games. And since it has 30% more cores than the 7800XT it is the better choice for Resolve. Its better than the 4070Super as well and 250usd cheaper than the 4070 Ti Super...

I'll stick to my recommendation. But you're free to do whatever you want.

And unlike some Nvidia nutjobs around here I'll take my cards GPU memory full free. I can even run CUDA now, thanks to ZLUDA.

Yea Imo, its literally just a release to say the released something around the same time Nvidea released the 4070 Super.

It was available for a long time they just "released" it in the US.

My unscientific response would be to go with the NVIDIA cards. I have had nothing but problems with AMD drivers. I have the RX 7900XTX and struggle to color grade without system ending crashes! If you have the $$$ for the 4080 then I say go for it and save yourself the headaches.

..or you could get the 7900 and let me know how it goes...for science...

My unscientific response would be to go with the NVIDIA cards. I have had nothing but problems with AMD drivers. I have the RX 7900XTX and struggle to color grade without system ending crashes! If you have the $$$ for the 4080 then I say go for it and save yourself the headaches.

..or you could get the 7900 and let me know how it goes...for science...

If your system crashes then its either the RAM or not enough power supply. The 7900XTX needs a newer power supply that can handle high transient currents.

If your PSU is fairly new then its most likely unstable RAM.

[Tony Rivera]

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