    Sentence 1: The updated 64-bit operating  system , Windows XP 64-Bit Edition for 64-Bit  Extended Systems , will run natively on AMD  Athlen 64 processor-powered desktops and  AMD Opteron processor-powered workstations    Sentence 2: Windows XP 64-bit Edition for 64-  Bit Extended Systems will support AMD64  technology , running natively on AMD Athlon  64 powered desktops and AMD Opteron  processor-powered workstations .