1998 –  At the beginnings of the AMD / Intel battle, AMD brought out a processor to dual with Pentium II. The AMD K6-2 processor was a Super Socket 7 pin structure, which also was compatible with older Socket 7 motherboards. With 9.3 million transistors, the K6-2 had a CPU clock rate of 266 to 550 MHz. Of course, these were single-core processors and had front side bus of either 66 or 100 MHz. The K6-2 also featured the MMX and 3DNow! instruction set. The K6-2+ was added to keep up with Pentium III processors. The processor line only lasted...