Hello all, I asked this question from an article and thought the readers here would be able to help me out as to clarify the difference in graphics processing power. Basically...I'm a 'do-it-yourselfer' upgrader and I was wondering how the new 13" Macbook Pro Retinas compare to the last 15" Macbook Pro (mid-June 2012) with respect to graphics? I only ask because I could now, feasibly buy a 15" Macbook Pro (with a 512mb Nvidia 650m GPU) and still have a quad core CPU (which I assume is still faster) for $100 less than buying the mid-level (October 2013) 13" Macbook Pro Retina ($1,499). I could even upgrade my ram to 16gb (+$130), replace my superdrive with an 240gb crucial SSD (+$120) which I'd run the OS from and basically have a 15" Macbook Pro with 16gb ram, 740gb HDD/SDD quad core for $1,650 which is only now, $50 less than the lowest price (that I can find) for the highest-level 13" Macbook Pro Retina ($1,699). Which of these three different options do you think are the best for graphics processing? Mid-level 13" Macbook Pro Retina October 2013 as is at $1,469 (lowest price found, no modifications/upgrades) vs. Top-level 13" Macbook Pro Retina October 2013 as is at $1,699 (lowest price found, no modifications/upgrades) vs. 15" Macbook Pro June 2012 upgraded at $1,650 (total price) Does the Haswell's integrated GPU on a 13" Macbook Pro Retina really compete with an Nvidia graphics card when taking into account these price points (including upgradeable RAM and HDD/SDD which I assume help speed up everything)?