They are not the same unless you can guarantee that the number is an integer. They react differently to numbers between 0 and 1, so everything from 0.000...1 to 0.999...
If you know it will always be an integer, pick the one you prefer, as they will give identical results. (Then again, > 0 will be consistant for both floats above one, and between zero and one, so could be considered more accurate in that sense. >= 1 will be more realistic, though, if you think of it from the perspective of whomever you are selling to not accepting such tiny quantities, having a minimum purchase size. Pick one...)
