The SU9600 has a 1.6 GHz clock speed, while the 430UM has a 1.2 GHz clock speedo ... My i7 640 UM (same 1.2Ghz base clock) benchmarks about as fast as my T9500 (2.6GHZ).Source Core 2 Duo SU9600 VS i5 430UM Laptop Forums and Notebook
i3 seems to have better benchmarks on CPUbenchmark PMark CPU Benchmarks - High Mid ... would like to know as well, but those scores n't too much better than my SU9600 ...Source TM2T Comparison Sheet new i3 i5 vs old su7300 su9600 Page 2