Apple have really improved the fan noise issues on the MBPs. Coming from a 5 year old 17" which fanned up watching a video full screen or with a web page running flash the difference is huge. If anyone is wondering the 13Inch 2015 macbook pro is totally silent under most usage. It can power a 4K TV display and run 4K video on it, 1080 video with total silence, I have been amazed by this. Only time it fans up is with intensive graphic games or very intense processing. So apple have made big improvements in terms of fan noise.