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

### Instruction:
What is the sSpec Number of the model with a 1ghz frequency?

### Inputs:
table_name: table, columns: ['Model Number', 'sSpec Number', 'Frequency', 'L2 Cache', 'Mult', 'Voltage', 'Socket', 'Release Date', 'Part Number(s)']

### Response:
SELECT sSpec Number FROM table WHERE Frequency = 1ghz