The AMD 3200 is like a 2.4ghz, and is much slower then the P4 3.2ghz.
I would stay away from AMD, cause there is so many problems with AMD and gaming, like look at the World of Warcraft support forum, the number one issue (error 131) only happens with AMD processors.
Most gaming companies develope games on Intel systems, and are only tested with AMD. I would rather have a CPU that games were written for, not ported to.