Super Sports from the early seventies had hand brazed 4130 Chrome-Moly frames, while Calientes of the same period had 1010 electro-forged frames. The Super Sports generally had higher end components.
Later Super Sports (~'85) were lugged, and used Columbus Tenax Chrome-Moly double-butted main tubes.
Zorro's right; Super Sports have been toward the high end of the Schwinn product line, while the Calientes have been toward the lower end.
It would help to know roughly when these bikes were made. Any way to post photos so we can see what you've got?
I had a '72 Super Sport that I bought new and rode thousands of miles until it got stolen in 1980.
Great bike.