Your CPU can mine (look for pooler's cpuminer) ok but it's not really worth it since your hashrate will be so low.
I have an i7-3770k @ 4.6Ghz and get roughly 60kh/s (mining LTC).
I also have a mobile i7 @ 1.6ghz and get 16kh/s.
I assume your numbers will be in between there somewhere.
Hrm. i have a 6 core amd at 3.2Ghz and am getting only around 12Kh/s from the cpu. I also mine on my GPU at around 200Kh/s.
I think i need to muck around with my CPU settings.