I was seeing about one MH on my core i7 when i first started.
I have 5450's around that get around 10 (so I don't bother with them).
I use 2 5770's - one gets 125 (I'm still scratching my head why... although I think it's the latest catalyst driver giving me hell), and the other gets 177-185.
I also have a 5830 running on linuxcoin usb with an ooooooooold Dell Precision 380 (Look on craigslist/ebay -- you'll probably be able to pick up this 1 pcie slot PC for less than anything you could build)
http://www.google.com/products/catalog?q=dell+precision+380&rls=com.microsoft:en-us:IE-Address&oe=UTF-8&rlz=1I7GGIE_en&um=1&hl=en&bav=on.2,or.r_gc.r_pw.&biw=1920&bih=1058&wrapid=tlif130892334598710&ie=UTF-8&tbm=shop&cid=11053561002789349962&sa=X&ei=1JUEToXFE6630AHQ67jICw&ved=0CGgQ8wIwAg#
I'm getting 230 MH off that -- I pulled out the hard drive and cdrom, and run fine with the stock power supply.
And then I have my 5870 running 280.
Again.. all of these numbers are running absolute stock configs -- nothing tweaked/modified to run anything other than stock settings -- so they aren't running the fastest they could, but all of them stay fully within warranty parameters
For the most part your CPU mining rate is a rounding error for your ATI/AMD GPU's... I wouldn't even bother with CPU at this point.
I have 5450's around that get around 10 (so I don't bother with them).
I use 2 5770's - one gets 125 (I'm still scratching my head why... although I think it's the latest catalyst driver giving me hell), and the other gets 177-185.
I also have a 5830 running on linuxcoin usb with an ooooooooold Dell Precision 380 (Look on craigslist/ebay -- you'll probably be able to pick up this 1 pcie slot PC for less than anything you could build)
http://www.google.com/products/catalog?q=dell+precision+380&rls=com.microsoft:en-us:IE-Address&oe=UTF-8&rlz=1I7GGIE_en&um=1&hl=en&bav=on.2,or.r_gc.r_pw.&biw=1920&bih=1058&wrapid=tlif130892334598710&ie=UTF-8&tbm=shop&cid=11053561002789349962&sa=X&ei=1JUEToXFE6630AHQ67jICw&ved=0CGgQ8wIwAg#
I'm getting 230 MH off that -- I pulled out the hard drive and cdrom, and run fine with the stock power supply.
And then I have my 5870 running 280.
Again.. all of these numbers are running absolute stock configs -- nothing tweaked/modified to run anything other than stock settings -- so they aren't running the fastest they could, but all of them stay fully within warranty parameters
For the most part your CPU mining rate is a rounding error for your ATI/AMD GPU's... I wouldn't even bother with CPU at this point.