Quote
In the normative sample for the WISC-IV, the gifted group (which had scored at least 130 previously) earned a Full Scale IQ score of 123.5 on the WISC-IV. Their Verbal Comprehension score was 124.7 and Perceptual Reasoning score was 120.4. However, in line with our experience, their Working Memory averaged only 112.5 and their Processing Speed was 110.6 (WISC-IV Technical Manual, p. 77).

from here:

http://www.gifteddevelopment.com/PDF_files/NewWISC.pdf