I think all that can be done with 2000PSI or less.
Concrete requires more.
I've 2 working pressure washers, a Sun Joe electric that does about 1,740 PSI and Troy-Bilt that does 3,100 PSI. I've also an older Northern Tools that did about 3,500 PSI, not working.
The Sun Joe does fine for the lighter tasks, but this summer I had to clean a 20x40 concrete pad that had a THICK build up of algae. With the narrowest nozzle on the Sun-Joe I could barely cut through the mess. I got the Troy-Bilt and I could cut about an 8" swath. It was like the difference between my 19" 125CC push lawnmower and my 5' bush hog on my 50HP Kubota.
So if you need to do concrete get more power.