The number is printed down the left side of the package.
The number is printed down
overall: 2 1/2 in x 2 1/2 in x 1/4 in
This is a packaged SPARC M7 microprocessor. The microprocessor is packaged in green ceramic. On one side, there is a matrix of gold contact points. On the other side, the back of the wafer is surrounded by bypass caps.