One of the earliest engineering sample of the ClawHammer, the AMD K8 processor. Clocked at 800 Mhz, this CPU only works with a specific motherboard and come with only 256 KB of L2 cache. It seems to only support DDR266 and is not stable with DDR333. First seen at CeBIT 2002, this sample was produced in late November 2001, nearly two years before the official launch of the Athlon 64 (code-named ClawHammer) !!