I'm frankly baffled how anyone can say "almost nothing whatsoever" - the R6 looks superficially similar to the R5 but internally it's almost a complete redesign. And no-one to my knowledge has complained about the R6 being inadequately ventilated. There are plenty of online reviews, videos on YouTube as well as the info on the manufacturer's website, for anyone who's genuinely interested and can be bothered to look.
Completely different calibre of case, this is for cases with loads of storage or can house a extreme custom loop. Try doing them in the meshify and you'll see why it's more expensive (lol)
Wrong, there's a lot more difference than that. The R5 has 1 more 5.25" bay, the extra fan at the front is actually situated on the top so will provide airflow to the ram, important at high ram speeds, and I'm pretty sure you can have 3 fans in the R5 aswell if you remove the 5.25" bays, the r6 can still hold 2 3.5" drives in the open layout, and 2 very important things, the side window on the R6 looks much better with a full tempered glass window with no thumbscrews, and the define R6 has a power supply shroud. There are more differences I'm just getting bored, all the info is on the fractal design website, just search "fractal design define r6 tempered glass edition".
thanks for that detailed reply :) Looks like there is no need for me to change mine. Love the R5.
Almost nothing what so ever. R6 has pwm fan controller vs a 3 speed fan controller on the R5. R6 is a tiny bit bigger. R6 can have a vertical gpu bracket. R6 has 1 more 5.25" bay. R6 has 2 less 3.5" bay. R6 can fit 1 more 120mm fan on the front (Not that it matters, there's not the ventilation for it to make much difference and it will be pointed at the PSU shroud)