Not just cooling, some extra feature is Killer double shot (I am not sure its advantage), for the screen, I am not sure any advantage of GS70 against GE70.
Ar, forget to tell you one thing, GTX860M on GS series may be still Kepler version, so far only GE series is Maxwell version. Advantage of Maxwell against Kepler is efficiency and power saving (less heat dissipitate but performance improves).
Actually, for both GS70 and GE70, they are slim when compared to GT series, so when you play games for hours, you will feel the warm/hot on palm rest and keyboard area.
When come to cooling, I think GS70 should be better due to dual fan provided similar thickness of chassis. But when you want to choose GS70, why not just add <RM500 go to GT60/70, definitely a monster level for gaming and you dont need to worry about cooling anymore, only the weight (~5kg total).
Since you are fresh graduate, that means you are about starting to work, so I suggest you purchase laptop when you have steady savings first, bcs buying gaming laptop is quite costly. I bought my GT70 after I had enough savings first. However, if your family sponsor the purchase, then go for GE70, good price/cost ratio, just need to take good care of in cooling.
killer n1202 and 7260 doesn't has great difference, they are both dual band.
nope, GS60 2PC GTX860M is maxwell based GTX860M.
GE70 has much better cooling capability than the GE60.