With that little amount of text, there's no (measurable) difference between printing to STDOUT and printing to a file. It makes a huge difference if you have many, many lines to print. The reasons are:

If you print to STDOUT, you get at maximum the character processing speed of the terminal. Printing to a file, there is no such constraint.

Also, printing to STDOUT is line buffered, i.e. the output buffer is flushed after each line, which makes extra overhead. Printing to a file is block buffered, i.e. the content is flushed to the file when a data block (size as per your OS, generally a multiple of 512 Bytes) is full. So, printing to a file is generally faster.

When you close FILE the text won't get to STDOUT, it can't be printed. If you are clueful enough to use warnings or use the -w switch invoking perl, you get the warning 

print() on closed filehandle FILE at line ...

[download]

<update>
Oops, I misread the post... *blush* - you are redirecting STDOUT. Well, my post may be useful anyways. - the overhead of *STDOUT = *FILE is exactly the time needed for that assignment. Now, if you do this a 1_000_000 times...
Thanks GrandFather for the hint via /msg :)
</update>

--shmem 

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re: Speed comparison between printing to STDOUT and printing to a filehandle by shmem
in thread Speed comparison between printing to STDOUT and printing to a filehandle by sberthold

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