Inside Intel: From Silicon to the World

Air-Cooled @ 10GHz, today

The culmination of these aforementioned technologies was in an air-cooled 10GHz 32-bit ALU running at room temperature:

A 10GHz clock frequency

The ALU's clock signal, it's not as smooth because of the exposed environmental conditions

Click to Enlarge - The test setup, there's a 10GHz ALU in there

Here's the ALU.

Proof that it works, try adding 1 to 2147483646 at 10GHz