c# IF performance optimization

Which method is faster for millions of loops ?

double a, b, c, d, e ,f;

1.

for (int i=0; i<1000000; i++)
{
  // simulation which changes the a,b,c,d,e,f values
  ...
  if (a>b)
  {
     if (c<d)
     {
       if (e==f)
         // do something
     }
  }
}

2.

for (int i=0; i<1000000; i++)
{
   // simulation which changes the a,b,c,d,e,f values
   ...
   if ((a>b) && (c<d) && (e==f))
     // do something
}

I was thinking that method 1 would be faster because it skips many if comparisons instead of comparing all the 3 variables at once every time.