3 ms·That's insanely high res. How many pixels would my 15" MBP have at that DPI?by dlsspy 16y agoThat's insanely high res. How many pixels would my 15" MBP have at that DPI?ovi256 16y ago15" / 3.5" * how many pixels the new iPhone has. Math people. So ~4100 by 2700. Pretty nice.sirn 16y agoThe current generation of 15" MacBook Pro is 128 PPI at 1680x1050 resolution For 321 PPI (which is 5 pixels less than iPhone 4's), it is 4200x2625.