Does 10.4.7 use more RAM?

I have been running 10.4.5 until yesterday when I erase and installed, and let Software Update install 10.4.7 on my Mini.
I also use Menu Meters and was shocked to see that about 285 MB were being used by the OS, Safari, Mail, Adium and xchat aqua...I think it's a lot considering most of the apps were really just sitting there, and I wasn't watching Video Bomb in Safari.
I noticed something called kernel task is taking between 92 and 98 MB. don't know if this is normal, but under 10.4.5, I seem to have only used 150 or 160 or so MB of RAM withe the same apps open as above.
is it me, or does 10.4.7 use a significant amount of RAM more. To me, 10% is significant.
thank you!
r

In that case there isn't much you can do. However, unless you are actually running out of memory I wouldn't worry too much about it. OS X's memory management is pretty good, and as long as you have ample space on the hard drive for swap space there should be little need for concern. However, if you find you are experiencing a lot of disk thrashing and extreme slowdowns when memory is maxed, then you need to quit some applications to avoid continued use of VM. You may also want to read more about memory management in OS X:
http://www.macosxhints.com/article.php?story=20010613140025184
http://docs.info.apple.com/article.html?artnum=107918

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