How to accurately utilize two independent graphics cards for hardware acceleration?

[RAVEN59219420]

Hello everyone, my computer runs on Windows 11 and is equipped with an RTX 4090 standalone graphics card as well as a newly purchased Intel DG1 graphics card. To address the issue of hardware encoding for H.265 422 10bit, I tried playing back H.265 422 10bit and other video materials in Premiere Pro 2024 version 24.6.1. However, I found that the Intel standalone graphics card did not work. When I set up in Windows to use only the Intel graphics card in Premiere, the software ran very inefficiently, and playing back a single H.265 422 10bit material was also very laggy. Could you please advise me on how to accurately set up my computer to run Premiere with maximum efficiency?

[Peru Bob]

Moved from the Premiere Pro forum to the Video Hardware forum.

[RAVEN59219420]

I think this is a PR issue because it can be called correctly in DaVinci Resolve.

[Peru Bob]

@RjL190365 

Can you help here?

[RjL190365]

You got the wrong Intel dGPU for this job. It is a total weakling in terms of overall performance to begin with. In fact, it is heavily hamstrung by its memory throughput that's equal to or less than the system memory! Only 68 GB/s memory throughput for that DG1 versus 76.8 GB/s for ordinary DDR5-4800 system RAM!

Second, it actually predates the Alchemist-generation Intel Xe dGPUs in terms of architecture. As an older architecture, its hardware decoding and encoding is not as performant as newer Intel GPU architectures.

[RAVEN59219420]

But I can use DaVinci Resolve correctly and smoothly play 3-4 H.265 10 bit videos at the same time.

[RAVEN59219420]

Actually, what I want to know is whether Premiere can simultaneously call Intel and Nvidia's independent graphics cards, just like DaVinci Resolve

[RjL190365]

Actually, Premiere never supported two completely different discrete GPUs at all simultaneously no matter what. It always supported only the GPU which is selected for rendering. That means that the only way to utilize your discrete Intel GPU would be to select OpenCL instead of CUDA as the hardware renderer (and then, everything gets sent to the Intel GPU while the Nvidia GPU sits idle). Otherwise, only the nvidia GPU is used.

[RAVEN59219420]

Thank you, buddy. This is consistent with my research results. When replaying, only CUDA or OpenCL mercury acceleration can be selected, which means that Premiere only supports hardware acceleration adjustment of one GPU when previewing and editing materials.