the old CORE test in essence calculates jitter from the first to the last CPU
the test doesn't allow for large CPU count.
The new version of CORE test changes the way jitter is calculated. now it calculates jitter between adjacent (in numbering) cpus. It adds the adjacent jitter each pass, and divides it by the number of measurements (the number of cpus minus one). It sets the standard at 0.2 sec. jitter, for both the average, and the worst adjacent cpu measurement.
the CORE test can give correct result on large CPU count.