user: ### NOW ANSWER:
Question: Name the CPU clock for L2 cache of 2*512 and series ^ of E-Series and DDR3 speed of 1066
Columns: ['Series ^', 'Model', 'CPU clock ( MHz )', 'CPU cores', 'TDP ( W )', 'L2 cache (KiB)', 'Radeon cores', 'DDR3 speed']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'real', 'real']
Sample row: ['C-Series', 'C-30', '1000', 1.0, '0 9', '512', 80.0, 1066.0]
SQL:

assistant: SELECT "CPU clock ( MHz )" FROM "Table" WHERE "L2 cache (KiB)" = '2*512' AND "Series ^" = 'E-Series' AND "DDR3 speed" = 1066.0;