Table: amd_athlon_x2
Columns: model_number
stepping
frequency
l2_cache
ht
multi_1
v_core
tdp
socket
release_date
part_number_s

Question: What is the frequency of the model whose part number is ado520biaa5do? 
SQL: SELECT "frequency" FROM amd_athlon_x2 WHERE "part_number_s" = 'ADO520BIAA5DO'

Question: When's the release date of the model with part number adh485biaa5do? 
SQL: SELECT "release_date" FROM amd_athlon_x2 WHERE "part_number_s" = 'ADH485BIAA5DO'

Question: What is the HT value of threw Athlon x2 5200b model? 
SQL: SELECT "ht" FROM amd_athlon_x2 WHERE "model_number" = 'Athlon X2 5200B'

Question: How many different frequencies does the model with part number ado540biaa5do? 
SQL: SELECT COUNT("frequency") FROM amd_athlon_x2 WHERE "part_number_s" = 'ADO540BIAA5DO'