It is interesting that Canon has set up a new Cloud Based service for noise reduction where the image is uploaded to the cloud for processing using new noise reduction technology…
"Canon Cloud Imaging for Digital Photo Professional which processes your still RAW images by noise reduction technology or other technology and yields processed images (“Service”) is provided to you by Canon Inc. at 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 146-8501 Japan (“Canon”), free of charge.
The Service is an additional function to the Digital Photo Professional which Canon currently provides, and enables you to send your still RAW images taken by EOS-1D X Mark III (“RAW Image”) to processing servers which Canon directly or indirectly controls over (“Processing Server”), have such RAW Image processed to reduce noise and send back such processed images (“Processed Image”) to you (with the RAW Image collectively, “Images”).
Please note that the Processed Image is newly generated and different file from that of the RAW Image and does not have the same function as the RAW Image has. Further, the Images are retained in the Processing Server for around 72 hours from the time when the Processing Server has received the RAW Image."