Since the J1900 for testing has already been dismantled, it seems difficult at the moment to test the power in the peak state.
Probably not as much as 44 watts at peak, but expect the G5500 / J1900 to see more power differential between the two CPUs.
If you use a Surveillance platform such as dva3221/dva3219/dva1622, it is highly likely to operate 24 hours a day, 365 days a year.
In this case, in the case of a home server, the fan noise seems to be more painful.
If you prefer low noise, the fanless products of the J series may be advantageous.
When looking for the CPUs of the Surveillance-type genuine Synology models,
both DVA3221 / DVA3219 use Intel Atom C3538, and the GPU is GTX 1650 / GTX 1050 Ti, respectively.
Genuine Synology seems to be similarly fanless. Rather, the GPU coolers seem to make noise while the GPU is actively processing.
Aren't GPU coolers for low-profiles running faster? I've never used a low profile GPU so I don't know.
Most of the Xeon CPUs use a lot of power, so the cooler must be good with high performance and the noise is likely to be severe.
Since I'm not in an environment where I'm going to use Surveillance, my biggest concern these days is direct streaming of 4K video from a plex.
Since there is no Android-type set-top such as Shield or Mibox, I watch it through LG Smart TV. I mainly use XPLAY, a WEBOS-based software.
In DSM 6, 4K video was directly streamed, but there were restrictions on high-definition video, but most of it was playable.
After changing to DSM 7, there was a problem that not even a single video could be played.
So, I am preparing for a comparative test by installing DSM 6 separately.