Critter with Fritz 13 interface thinks there are 4 cores, but if you go to the little square where it says 4 and click with either mouse button it opens a box where you can change it to "8 CPUs".  It says CPUs (1-8) and has a field that permits any number 1-8.  The Critter "advanced setting" you can also use to change it.  It does not stay unless you change its name while "creating new engine" though, and add to the name at the end at the end of the name.

I think the Fritz software assumes that the presence of 8 logical cores means there are hyperthreading cores and only uses what it thinks are physical cores.  But, of course, these are not hyperthreading cores. People can quibble about what they want to call them, but they defiantly contribute to the calculation.

The 8-core Buldozer is a lower voltage chip because it is a finer process. It only required a modest voltage increase to get to 4.3GHz stable.  The 1100T required almost the full 1.475V to get to a stable 3.9Ghz.  My standards for deeming it stable are a little higher than for some.  I need it to run 100% on all cores for weeks on end.  Maybe I just got a dud.  But the new chip is at 49C at 100% and it is hot in here.  The 1100T ran somewhat hot about 58C and that was with less overclock.  That is on all the same hardware.

I don't have it water cooled right now but I probably will do that.  I have to order a water block.  Got another pump...everything else I can get at Home Depot.

It is doing some opening research stuff with the "Let's Check" thing in Fritz 13.  I have been running it pretty much continuously on Infinite Analysis for a couple months. I have been using Critter and it is generally at 10,000-11,000kn/s.  Intel stuff is probably faster.  I am using Windows 7 64-bit.  I think I like XP 64-bit better. 7 may be more stable when programs are not stable but the start bar is crap, and the prearranged places data is supposed to go is annoying too.  XP 64-bit with a dozen or so modifications is much better. I think it is fastest for chess too.  However, I did not want to try to build a new system and have a headache with trying to find drivers for the new hardware. XP 64-bit never was very popular and hardware companies don't feel obligated to make drivers for it.