Yes, they're CT scanners, and I didn't notice any difference in speed. I think the times that I've used the CT types in MUC and AMS, as well as ORD. They were in the PreCheck lane at ORD and I didn't have to take my iPad, laptop, phone, or any liquids out and in the EU I was able to transit security with bottles of water and no issues. I'm pretty sure they tested the Smiths CT in Terminal B at Logan as well. It is interesting that in Germany you go through secondary screening prior to getting to the gates with the US bound flights, but if you have a US passport you are able to avoid going through. Also, I purchased a Wüstof knife post security in Munich and kept it in my carry-on bag all the way to BOS.Those analogic scanners are indeed nationwide, and also hated by many travellers, because they're slow. They're CT scanners, which like a medical scanner means 3D images... Which take longer to interpret.
Plus, every individual thing needs to go in a bin, and with multiple "loading stations", there's still only one output. Granted your 3-1-1 and laptops can stay in, but they're a pain. Given the choice of a lane with these vs a lane without, I'm going for the lane with the old X-ray scanners.