Infusion Engine III

CubeAce wrote on 3/12/2023, 9:07 AM

After reading more about Direct X12 and the differences between that and Direct X 11 I am assuming that the Infusion Engine has been built around this difference to improve both playback and exporting capabilities.

Therefore it would seem that.

It is not just having access to two applicable Intel Arc based GPUs that could be of benefit to using either VPX or MMS.

That it may be possible to have the use of 2 third party GPUs in a system rather than just one.

That with a system that also has an inboard CPU GPU that you could split the workload even more or use the second graphics card to record the performance of the programs with something like OBS Studio without skewing the program in use or benchmark results.

I have seen posts by people trying to do this with DaVinci Resolve with inconclusive results so far. It would seem not to be a problem from a Windows operating system perspective but I have not seen anyone try this with a Magix or Vegas program so far.

Has anyone tried this?

Just curious at this point. I may give it a go if I can. I'm checking up on the viability of using my old nvidia card if it is possible.

I am also wondering about the specs page not mentioning this difference in regards to performance.

Ray.

Comments

johnebaker wrote on 3/12/2023, 10:15 AM

@CubeAce

Hi Ray

. . . . Infusion Engine 3 has been built around this difference to improve both playback and exporting capabilities . . . .

That would be an accurate assessment.

The Windows Graphics settings we have discussed before and, IIRC, the result was that the specific device option setting should be used for versions of VPX/MMS/MEP where the Import, Processing and Export options are not available.

VPX/MMS/MEP which have the 3 Device options override the Windows option, so the Graphics setting is irrelevant.

. . . . I'm checking up on the viability of using my old nvidia card if it is possible. . . .

Which card would that be - the existing GPU in the PC, or another GPU card (which one)?

For maximum performance with 2 GPU cards they should be identical GPUs that can be SLI linked, on an SLI certified motherboard (a requirement).

They are seen as one GPU in VPX/MMS/MEP, older versions would probably be able to take advantage of this as well via the Windows Graphics setting. There is a caveat in terms of performance - you most likely will not see a 100% doubling of throughput with linked GPUs as the data to be processed is sent to the 'primary' GPU and then copied across to the secondary GPU from the primary.

. . . . the specs page not mentioning this difference in regards to performance . . . .

Depending on how you look at this, such information would be either:

Proscriptive ie you must have this, this and that hardware - not good for the user.

There are too many hardware variables out in the wild to give meaningful information - the best that could be done is 'up to x times faster' which is vague and could be construed as misleading for users who assume their PC will go 2x faster.

John EB

CubeAce wrote on 3/12/2023, 11:01 AM

@johnebaker

Hi John.

Whatever card I use will have to be Direct X 12 compatible and may depend on what I can also borrow. It would be interesting just to see if it works better than splitting up between an Intel HD 630 and taking some of the strain off of my 1650Super as opposed to just setting the programs to use the 1650 exclusively at present in the program options. It could also be useful to put the second card on screen recording duties if I wanted to do a video showing varying usage of the programs and not causing a possibly slightly skewed result.

I think personally, the higher specification the cards used are, the less performance gain there will possibly be. Diminishing returns and all that. I am looking forward to at least trying this out. I will start with my old 1030 as my son has upgraded since I gave it to him and I'll probably get it back later. Then I'll ask around locally. I have kept hold of all my older GPUs but they are too old. Two of them even have TV in / outputs from VHS times.

As regards to the specs page. We get enough complaints on the forums as it is where people don't understand why their experience differs from expectations. It can be hit and miss as it is and lead to rants on the forums.

Ray.