The 7840HS has the 780M integrated GPU plus the Ryzen AI NPU. It is one of the most powerful integrated GPUs out there, but not up to the level of many of the discrete GPUs. I have a Win11 laptop I sometimes use that has the 7840U + 780M + Ryzen AI NPU, 16gb, 1tb. The 7840HS and 7840U are almost identical except the 7840HS has a very slightly higher clock speed (and more energy usage).
My 7840U runs Photo AI pretty well and not far behind my M2 Pro 12/19/16 16" Macbook Pro 32gb/1tb. But if I try to use Super Focus on the 7840U I get this error message. Is this the same error you get?

My Win11 laptop meets the system requirements, I think:
docs.topazlabs.com/photo-ai/system-requirements
But Super Focus clearly needs a lot more than the other models. I think Topaz needs to update the system requirements and maybe add a remark about Super Focus needing more than the other models.