if (  $sUnpackedCDPcap ne $sPhoneCapabilityCode 
    & $sUnpackedCDPcap ne $s3905CapabilityCode )
{
  ##Do some stuff##
}

##</code><code>##

if ( ($sUnpackedCDPcap != $sPhoneCapabilityCode) &&
     ($sUnpackedCDPcap != $s3905CapabilityCode ) )
{
  ##Do some stuff##
}

##</code><code>##

#!usr/bin/perl
use strict;
use warnings;

use Benchmark qw(:all);

my $count = 100000000; # one hundred million cycles

my $sUnpackedCDPcap = "00000491";
my $sPhoneCapabilityCode = "00000490"; 
my $s3905CapabilityCode   ="00000290";

timethese
($count, 
        {
	   'String_if' =>  \&string_if,
	   'Do_Nothing' => \&do_nothing,
	   'Numeric_if' => \&numeric_if,
        }
);

sub do_nothing
{
   #don't do anything
   return;
}

sub string_if
{
       
    #$sUnpackedCDPcap is Dynamically generated during the program
    
    if ($sUnpackedCDPcap ne $sPhoneCapabilityCode & 
        $sUnpackedCDPcap ne $s3905CapabilityCode )
    {
      ##Do some stuff##
    }
    return;
}

sub numeric_if
{
    if ( ( $sUnpackedCDPcap != $sPhoneCapabilityCode) && 
         ( $sUnpackedCDPcap != $s3905CapabilityCode ) )
    {
          ##Do some stuff##
    }
    return;
}

__END__
Benchmark: timing 100000000 iterations of Do_Nothing, Numeric_if, String_if...
Do_Nothing:  4 wallclock secs ( 4.03 usr +  0.00 sys =  4.03 CPU) @ 24801587.30/s (n=100000000)
Numeric_if: 15 wallclock secs (16.44 usr +  0.00 sys = 16.44 CPU) @ 6083835.25/s (n=100000000)
String_if: 25 wallclock secs (26.59 usr +  0.00 sys = 26.59 CPU) @ 3760388.07/s (n=100000000)