okay um.. .first of all the numbers are in mhz... if its like 2200 ghz, it'll be like... uber super computer in 2100. okay. other than that, the 4200+ is 2.2 ghz, and so is the 3700. in terms of regular single thread performance, not that much difference. the 4200+ will perform better during multi thread programs. in terms of overclocking, the 3700 sandiego will have a huge advantage over the 4200+
<font color=red>gforce mx100/200 @ 230/440 =]</font color=red>