Apparently yes.
http://www.dell.com/downloads/emea/products/optix/optix_740_en_new.pdf
Though I'd personally not spend any money until it is fully proven.
Processor Type
AMD Phenom™ Quad-Core, up to 2MB cache, Cool’n’Quiet Technology, Enhanced Virus Protection, HyperTransport2
AMD Phenom™ Triple-Core, up to 1.5MB cache, Cool’n’Quiet Technology, Enhanced Virus Protection, HyperTransport2
AMD Athlon™ Dual-core, up to 1MB cache, Cool’n’Quiet Technology, Enhanced Virus Protection, HyperTransport
AMD Athlon™ 64 X2 Dual-core, up to 1MB cache, Cool’n’Quiet Technology, Enhanced Virus Protection, HyperTransport