user: Question: What is the latest date with Cores per die / Dies per module of 2 / 1, and a Clock of 1.4-1.6GHz?
Columns: ['Date', 'Name', 'Developer', 'Clock', 'Process', 'Cores per die / Dies per module']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [2000.0, 'Athlon XP', 'AMD', '1.33-1.73GHz', '180nm', '1 / 1']
SQL:

assistant: SELECT MAX("Date") FROM "Table" WHERE "Cores per die / Dies per module" = '2 / 1' AND "Clock" = '1.4-1.6GHz';