Arun,
What do you mean by multi-core or multi-threading ability?
Do you want to test whether your multiple threads are running on different cores on these CPUs?
Public data by Intel CPU model is here in case that isn't where you looked. This will tell clearly if those support hyperthreads. None of the Core duo or Core 2 duo family had HT, which agrees with the implication of 2 cores 2 threads.
According to Diana Byrne, Intel Multicore Product Engineer: If it's an Intel dual-core processor, it should work. Try downloading and using it. The OS requirements and other requirements are listed on the same Web page where you download the tool: http://software.intel.com/partner/app/software-assessment#icc.