Difference in using a function like vs function pointer as a function parameter of a C ++ template?

Partially related to C ++ Template Syntax with function type parameters , but could not get rid of all my doubts.

What is, if there is, the difference between

template <void F(int)> 
void fun1 (int a) {F(a);}

and

template <void (*F)(int)> 
void fun2 (int a) {F(a);}

?

I tried to create an instance with something like

void called (int arg)
{
 ...
}

int main()
{
   fun1(10);
   fun2(20);
   return 0;
}

And looking at the generated assembly code from clang 3.4 and gcc-4.8 (-O0 for both), I did not see any difference.

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