P8700 2.53 Ghz
I think you're being a bit too specific on the CPU, but it's not really important to be so.
the thing here is to compare the CPU with models of the same batch ..
Core2duo P8700 2.53ghz is good enough for Sonar for sure..
These are among the last batch of Core2duo IIRC, they run at 1066mhz of FSB ...
Don't be fooled by the intended, marketed obsolescence of Intel chips..
even though these are 5 years old (launched in 2008),
Look at the benchmarks, these chips run as fast as the lowest Core I3 chips.
http://www.cpubenchmark.net/cpu_lookup.php?cpu=Intel+Core2+Duo+P8700+%40+2.53GHz Of course these are not fast machines by today's standards, don't expect to run 8 instances of Omnisphere or Kontakt on that.. but it should be able to do most basic projects just fine...
Afterall, we used to make albums on Pentium4 ...
The only problem I'd expect, is the amount of RAM ... lucky for you, you probably have DDR3 Sodimm in there, so it makes it worthwhile to upgrade RAM, as older DDR2 RAM is really getting expensive.
I hope that helps you a bit.
Cheers !
V