It depends on how many cores are loaded, Intel CPUs have lower limits for turbo boost based on the number of cores that are loaded. Generally it's - 0.1 ver core. So if your max turbo boost is 3.4 for 1 core, it would be 3.3 for 2 cores and 3.2 for 3 cores and 3.1 for 4 cores. Now the 4460 was a base frequency of 3.2 so it's not going to fall below that.
Try doing something like running Prime95 using only one thread to check.