Pretty much the same spec, just some minor design/colour tweaks, they are supposedly a bit lighter too but there feels little difference compared to my own 200 not outs.
They are heavier than the Gel Advance 6 for example, and on the chunky side, but they are intended as an all rounders shoe with a lot of support and cushioning. Indeed both Shane Watson and Mitchell Johnson have been bowling in them during the series with India. Johnson is a fast bowler obviously, and Watson has his, ahem, hefty frame to support.
They have the same shock absorbing DuoMax grey foam in the soleplate that is found in high end running shoes. This gives great support, particularly for over-pronators.