GDHardware has a benchmark review on AMD's FX-57 and clearly shows that with the extra 200MHz taking it to 2.8GHz and enhanced memory controller the new chip gets a considerably performance boost in everyday performance and of course, gaming performance.
The benchmarks also have the AthlonX2 4800+ to compare multi-threaded versus single threaded performance in games.
http://www.gdhardware.com/hardware/cpus/amd/athlon64/fx57/001.htm
The benchmarks also have the AthlonX2 4800+ to compare multi-threaded versus single threaded performance in games.
http://www.gdhardware.com/hardware/cpus/amd/athlon64/fx57/001.htm