All of his irons are basically the length of a 7 iron.
His driver is only 5 degrees and his woods are stronger, but saying that PGA tour guys use stronger lofts just isnt true. They are almost always weaker with 3-5 degrees more loft than your average golfers irons with the same number.
For example, most amateurs play a 7 iron with 29-32 degrees of loft, but tour blade 7 irons are typically 34 degrees
Tiger Woods 7 iron has 36 degrees of loft