Ok, your computer has more than enough power do run this game considering my 3-5 year old computer (some parts are older than others), AMD Athlon 64 3000+, 1.5 GB Ram, and Radeon X850xt run it fairly well on full graphics (when the zone is completely filled with people, I need to tone it down a little).
You are covered.
I like to think of AMD processors as Porsche engines and Pentium processors as American Big block V8's. Pentiums produce lots of raw power but they use more electricity if I recall correctly (poorer gas mileage lawl). AMD's technically produce less power, but still manage to compete, and in alot of cases, exceed the performance of the Pentiums.
The 3000+ and 4400+ are equivalent speeds when compared to Pentiums, I believe.