Difference Between Adobe DNG SDK and Photoshop's Results

I'm trying to find Photoshop's image processing operations applied to an image by comparing DNG SDK.

For example, this is the difference between DNG SDK's sRGB result and Photoshop's sRGB result . (SDK's full pipeline is applied to RAW image, and for the Photoshop case RAW image is opened and saved as sRGB .tiff file.)

Then I realized that Photoshop applies noise reduction and sharpening to the images. Then I decreased all these parameters to 0, as much as I can do. Here is what I did.

Then the difference is less. However it is not zero. Here, you can see the difference between the two images.

What could be the other operations that Photoshop applies to the images rather than noise reduction and sharpening?

Thanks in advance for your time.