The day has come and AMD has officially announced the Athlon 64 family, as expected.Other than the logos, a few FAQs have popped up but still no performance figures which probably won't see the light until next month. Also, although I have seen a few 'FX' pics around, still no word about it on AMD's website, perhaps we will have to wait a few more hours. What are the differences between the AMD Athlon 64 and AMD Opteron processors? The upcoming AMD Opteron and AMD Athlon 64 processors are designed for different markets. For the server/workstation market, the AMD Opteron processor will undergo more stringent validation and reliability testing. Another difference will be in the number of HyperTransport links embedded on the chip. The AMD Athlon 64 processor will contain one HyperTransport link offering 6.4 GB/s data transfer while the AMD Opteron processor will offer three links. The processors will also contain different amounts of cache.