AMD Athlon 1200
A strong performer. This is the B-variant which uses a 100MHz (DDR200) FSB. The C-variant uses the faster 133MHz (DDR266) bus but still runs at 1200MHz.
The 1200MHz model is solid and reliable while staying within cooling proportions. Models like the 1333 and 1400 needed better cooling and stretched the motherboards' VRM's and the chip itself more. They still ran great; but needed better components. Back in the days a lot of people said that the AMD chips ran too hot but they often changed mind when Intel's Prescott came out.