My experience is no difference. There must be other factors involved;
things like amount of RAM, HD sizes, software installed, CPU speeds.
P.N.,
I have a laptop with WinXP. I haven't booted it up for months. Were I
to, I would find it impossible to use for maybe a couple of hours as I
last left the AV, firewall and a couple of other softwares in a "you
have my permission to automatically update your stuff" state.
Once everything had been updated, it would whiz along, but when first
booted it is going to be a pain.
My HP notebook running Win7 is also running Prime95, the Mersenne
Prime search program. I leave it running 24/7. Sometimes, when I want
to use it, the GIMPS won't get out of the way for a while. It is too
busy doing stuff to respond to my request for CPU privileges. Usually,
the search software is extremely polite but occasionally it hammers
the CPU and it is difficult to get the machine's attention.
And why am I telling P.N. this? Because otherwise lovely boxes can be
trapped into glacial slowness and uselessness by one or two programs,
they may even be running in the background.
Try Task Manager. See if you can see what is using the CPU cycles.
See if anything huge is running. If you have more than one security
program they can slow things down. Back software or search-and-index
software can slow things.
Try "Process Explorer" from
www.sysinternals.com for an even better
tool, though that one does tend to show *lots* of truly weird
information.
You could also try optimising your x64 machine. Remove stuff you
don't use and tidy up other things.
If you want an anecdotal data point, my 12GB RAM Win7 x64 box is
amazingly fast even when running SETatHOME, EINSTEINatHOME, Agent,
Process Explorer (which I left up in the background accidentally), VLC
and Microsoft Media Centre. It is certainly *loads* faster than my 1GB
Win7 notebook, even when I turn off Prime95 on that machine.
I do have security software running, the x64 box is *still*
incredibly fast.
One of the first things I did on this box when it was new was to go
through all the extra "goodies" HP put on it, like HPSupport and the
rest, and I removed much of them. I removed the trial toolbars and a
load of other stuff.
But I did that with the laptop and the notebook, too.
Maybe that is what is bogging down your machine? The crudware that
comes with the box?
As Ed said, "other factors". To help more, we'd really need more
details.
J.