compare with chars && compare with int

my code is as follows:

Code:

---

int a = 0;
int b = 1;
char a = 'T';
char b = 'A';
if ( a != b ) {
    //do
}else
{
  //do other
}

if ( a != b )
{
    //do
} else
{
  //do other
}

---

which compare is faster?
char compare or int compare?
I have thought 'char compare' is faster.
because char is 8bit,and int is 16bit. isn't it?

if a b are array, what happens?

Code:

---

char a[] = "abcddddd";
char b[] = "dddddddd";

---

I'm having a deja-vu.
http://cboard.cprogramming.com/c-pro...re-faster.html

The answer to this is EXACTLY the same.