http://forums.anandtech.com/message...hreadid=1321894

1) What is a Athlon 64 Desktop Replacement (DTR) CPU?

It's a mobile version of the Athlon 64 desktop processor


(2) Are their different types of Athlon 64 mobile processors?

There are three types (all using the same Socket 754 interface as the desktop Athlon 64):


(a) The 1.5v DTR CPUs come in three flavors currently, a 3400+ model with a clock speed of 2.2Ghz and 1MB of L2 cache with the older C0 stepping core (there are plans to transition the 3400+ to the CG core but as of yet no reliable reports have surfaced that this has occured,) a 3200+ model with a clock speed of 2.0Ghz and 1MB L2 cache with the improved CG stepping core, and a 3000+ model with a clock speed of 1.8Ghz and 1MB L2 cache with the improved CG stepping core.

(b) The 1.4v "mobile" CPUs which are basically just DTR CPUs rated to run at a lower default voltage (although the CG DTR 3200+ will also run at 1.4v with complete stability) These CPUs come in three flavors, a 3200+ model with a clock speed of 2.0Ghz and 1MB L2 cache with the improved CG stepping core,a 3000+ model with a clock speed of 1.8 Ghz and 1MB L2 cache with the improved CG stepping core, and a 2800+ model with a clock speed of 1.6Ghz and 1MB L2 cache with the improved CG stepping core.

(c) The 1.2v "true mobile" CPUs. There are two models, a 2800+ model with a clock speed of 1.8Ghz and 512k L2 cache with the improved CG stepping core, and a 2700+ model with a clock speed of 1.6Ghz and 512k L2 cache with the improved CG stepping core.


(3) Is that every mobile CPU available?

According to AMD technical documents it is not. All the CG core processors except for the 1.2v true mobile CPUs appear to be available in the older C0 stepping core. To ensure that one is getting a CG core check the processor part number and make sure it ends with either -AR or -AX as shown here:
http://www.amdboard.com/amd64_opn.html