Multicore Super Pi Benchmark

I use Super Pi to compare CPU speed on different computers and overclocking.

I'm interested in locating a benchmark that would compare multicore processing, as well as CPU speed.

When doing speech recognition (Nuance Dragon Naturally Speaking, version 10.1) with a noise canceling USB microphone, multicore processing is vitally important. On a single core computer (Intel 478) the latency (time delay between pronouncing speech and seeing the words displayed on the screen) is so long that the noise canceling USB microphone is unusable. The multicore LGA 1366 works fine.

I would like to be able to compare multicore processing speeds, e.g. dual core versus quad core versus processor speed. I'm thinking along the lines of a benchmark running 4 Super Pi calculations simultaneously, with the catch being that each Super Pi calculation would need to be done by a separate core. I'm way over my head in this objective.

I'm on Disability and very much dependent on speech recognition. I'm multitasking with several programs running at the same time, multiple MS Word documents open, and using a noise canceling microphone and speech recognition. If the system slows down too much, then I have to close some of the MS Word documents and make the environment quieter, turning off music.

My quad core LGA 1366 does fine. I'm interested in producing another computer(s), but I'm very much restricted on the costs for it. Thus, it would be nice to have a benchmark that compares processing speed of a multicore system. I suspect that such a benchmark is available, but I do not even know how to look for it. As stated, I'm way over my head to even find a benchmark.

I could use some help locating a benchmark that tests processing speeds in the multicore environment.