sentence: implementations amd amd64 and direct connect architecture based cpus sibyte mips cpus from broadcom pmc-sierra rm9000x2 mips cpu raza thread processors loongson -3 mips processor ht tunnel from opencores project ( mpl licence ) ati radeon xpress 200 for amd processor nvidia nforce chipsets nforce professional mcps ( media and communication processor ) nforce 4 series nforce 500 series nforce 600 series nforce 700 series serverworks ( now broadcom ) hypertransport systemi/o controllers ht-2000 ht-2100 the ibm cpc925 and cpc945 powerpc 970 northbridges , as co-designed and used by apple in the power mac g5 several open source cores from the hypertransport center of excellence cisco quantumflow processors frequency specifications amd athlon 64 , athlon 64 fx , athlon 64 x2 , athlon x2 , athlon ii , phenom , phenom ii , sempron , turion series and later use one 16-bit hypertransport link .