GPU Benchmark Denoise AI

[Markus265563410yjk]

Hello, do you have any GPU speed benchmarks for denoising? Does Lightroom also support AMD graphics cards in the calculation or only Nvidia? I'm particularly interested in the Radeon 7900 XT. I'm not entirely satisfied with the RTX 4070.
Best regards, Mark

[.Michael.]

If you want the AI-performance less than a NVIDIA RTX 4070 Super provides then go for a AMD 7900XTX. In the price range of an AMD 7900XTX I would go for an RTX 4070 Ti Super or the upcoming RTX 5070 Ti.

Adobe AI denoise example:

RTX 4070 Ti Super: 31 seconds

7900XTX: 35 seconds

See the post from reedsmith and his later #399 post.

[elisir]

So basically, more CUDA cores means a faster denoise process. I’m hoping we’ll get more data on the 50xx series soon, so we can see if additional AI enhancements, along with the extra CUDA cores, will improve performance. I’ve already planned my PC build, but I can’t decide on the GPU just yet. AI denoise is a crucial part of my workflow, as I often denoise a large number of images before I start editing, so time is definitely of the essence.

[D Fosse]

@elisir 

Not CUDA cores. Tensor cores.

CUDA is actually an API (application programming interface), or an architecture, that lets a high number of cores run in parallel. The number of cores in this parallel architecture can be hundreds and thousands. CUDA cores are general purpose.

But that's not what is used by Denoise and other AI-based tasks (or only partially). This uses Tensor cores, which are specifically purposed for AI.

The RTX designation indicates Tensor cores. Earlier GTX models didn't have that, and that's why they're orders of magnitude slower with Denoise and AI.

[elisir]

Thanks for the clarification! So it’s the Tensor cores I should focus on when choosing a GPU for AI denoise, not the CUDA cores. 

[lugagoan]

The RX 7900 XT is a beast.

24mpx (35.74MB) = AI DENOISE 4Sec

50.3mpx (64.02MB) = AI DENOISE 10Sec 

[Karo Holmberg Logitech]

You are probably having an AMD based computer?
Also the files you tested are not the same ones used on the list above - that might give or take some seconds 🙂

[D Fosse]

That's about similar to an RTX 4070 Ti (extrapolated from given sizes to 60MP, which was the original test standard).

[Karo Holmberg Logitech]

Here are some new results on actual denoising with different graphics cards.

All of these values have been measured with Lightroom Classic, using 50 strength on Ai Denoise. All tested images are the same, and clock has been stopped at the same time as the "process bar" disappears on Lightroom Classic's UI (so not at the point when "image is ready", but when process bar disappears).

Is this scientific, hell no - but it gives quite a good estimate where we are with current cards 🙂

No 50-series NVIDIA cards tested yet on this particular test.

[.Michael.]

No 50-series NVIDIA cards tested yet.

By Karo Holmberg Logitech

One RTX 5080 was already tested in my already several times linked forum , result:

19 seconds

as compare

1) RTX 4090:

16 seconds

2) RTX 4070 Super:

26 seconds

I have not mentioned a RTX 4080 result because there are no current test results available. (Older results are around 26 seconds which is outdated.)

[Karo Holmberg Logitech]

You missed the point.

Results that I have posted are from a different set of test - one that I have gathered "elsewhere".

I have four different files (24mpx, 45mpx, 61mpx and 102mpx) which people have tested with 50% Ai Denoise strenght. This gives a more usable results for comparing how fast the cards are in real-life applications. Not just benchmarking "which is faster" - because that we already know.

The point of my test is to give people some insight about which card they might want to buy next as they see how much time it takes when they are doing actual work.

That is what these results are all about - and I have not gotten any results of ant 50-series card with my files and parameters I have set.

[.Michael.]

I missed nothing:

Many people are interrested in the new NVIDIA GPU perfomance, in our case in the denoise AI performance and it is not a game changer, as my data show. I'm very confident that the here (from you) used benchmark will not show some different result.

P.S. The there (my) used AI-denoise benchmark is also available for download, inclusive an "how to".

[Karo Holmberg Logitech]

I will post results of 50-series card as soon as someone runs my files through.

This interests many users - that is also the reason I have four different mpx-sizes so people can actually understand how long does it take to process one image.

[D Fosse]

@.Michael. 

Nobody ever expected the 50-series cards to be a "game changer". That's completely unrealistic. What we can expect is a few seconds gain, which is what we got from the 30-series to the 40-series.

I doubt that anyone really cares whether it's 18 seconds or 20 seconds. Either way, you sit around a wait for a little while. The faster the better of course, but these numbers are mainly to know what you can basically expect.

[skaz35448247]

where can I find your 4 files please? 

[elisir]

I tried registering for the forum you linked so I could download the test results file, but after admin approval, I was banned. Is it limited to users in Germany?

[Max Rockbin]

Great info!   Small addition:  The 2080 TI has 11GB.  True for all of those cards that I have seen.  Photoshop seems to suck every bit of VRAM it can these days, 

[Nathan373752729jz9]

I'll put my .02 in. On my system Rayzen 5950x, 32gb ram, RX6700 28 seconds on my Canon R5ii which are huge 60MB files. My sons i9 4070 super 11.5 seconds. I'll be going with RX7900 XtX see if I can get down to 15 seconds I be happy. Doing 2k pictures sucks. Manual denoise great when I'm bellow 12k iso but during Rodeos indoor with bad bad bad lighting in need Ai denoise. Tired waiting 14 hours..

[Karo Holmberg Logitech]

There is something else slowing down your system. Probably memory blocks are much slower than on your sons computer.