The updated 64-bit operating system , Windows XP 64-Bit Edition for 64-Bit Extended Systems , will run natively on AMD Athlon 64 processor-powered desktops and AMD Opteron processor-powered workstations .
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 .