Difference between paste and beefsteak tomatos?

[Tworivers1]

My brother uses a lot of romas to make fresh salsa because he likes the firmer flesh and less seeds. The plants he had were very prolific but were very small with the biggest ones being maybe two inches long. He likes the romas because they're not as juicy and have fewer seeds as other tomatos.

I have never grown paste tomatos before and am not sure whether they would fit his criteria as far as the texture and seeds go. I do plan on growing Rinaldo and Rio Grande this year and wonder if they would be suitable for fresh salsa.

Also are plum and paste tomatos the same?

Thanks,

Mark