Why do I hit my 5 wood further than my driver?

[nightrider1470]

Both the same flex. Am a high handicapper. I notice a really low flight with my driver which is 10.5 loft.

my driver is this one. Adams s speedline driver.

http://www.golfalot.com/equipment-reviews/adams-speedline-super-s-driver-review-818.aspx

Even my 5 iron seems to go further