Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the release date of the 6 mb L3 cache with the part number by80607005259aabx80607i7740qm?

### Inputs:
table_name: table, columns: ['Model number', 'sSpec number', 'Frequency', 'Turbo', 'Cores', 'L2 cache', 'L3 cache', 'I/O bus', 'Mult.', 'Memory', 'Voltage', 'Socket', 'Release date', 'Part number(s)', 'Release price ( USD )']

### Response:
SELECT Release date FROM table WHERE L3 cache = 6 mb AND Part number(s) = by80607005259aabx80607i7740qm