Hi I was wondering if the battery life is similar between these two. (Note I excluded the basic model because it doesn't have a dedicated GPU unlike the early 2013). Early 2013 MBPR with either basic model or top CTO VS Late 2013 MBPR with 750M I saw it somewhere that battery life wasn't that different between these 2, except with the Iris Pro only model which provided a better battery life to advertise at the keynote presentation. Any real life user or whoever experienced the battery life can share with us on the battery life? Thanks so much.