Leopard on Titanium laptop, is it possible ?

I purchased a spare laptop ( 15" Titanium running 10.3.9 ) and its a very decent little machine if a little dated.

I never bought Tiger for my main machine as I upgraded from panther to leopard.

Will my titanium take my copy of Leopard ?? or is it a bridge too far and to make the most of my Titanium should I look for a second hand copy of Tiger ?

Many thanks

Tony