The first code name of the next-gen K6 was first planned to be "K6 3D" because they included 3DNow! Instructions set. Then, AMD renammed and launched them as "K6-2". This engineering sample is one of the first engineering sample of the K6-2 and had the "K6 3D" marking on front. Clocked at 300 MHz it used a 100 MHz bus and a 3.0x multiplier. This sample was produced in April 1997 and the first K6-2 300 MHz was launched on May, 28th 1998.