According to your issue, bear in mind the fps depends on many variables. Video graphics performance, amount of memory (RAM), type and speed of hard drive.
The refresh rates supported by Intel® Iris™ Graphics 6100 are below, using straight video cables (high quality DisplayPort1.2 and HDMI1.4a)
DisplayPort* 1.2 / eDP*U-Processors: 3840 x 2160 @ 60 Hz
HDMI*: 4096 x 2304, 3840 x 2160 @ 24 Hz / 24bpp
Please run a third party application called Fraps and perform a benchmark to your NUC. FRAPS game capture video recorder fps viewer
Additional, run our Intel® System Support Utility, it is a new utility, only English version is available yet.
Download Intel® System Support Utility
Thank you for this first answer.
As I wrote in my previous post, unfortunately Intel SSU doesn't run with the Windows 10 x64 french version. I guess this is something linked to the administrator account which is "administrateur" in french. SSU requires administrator rights, and I am administrator group member.
I gonna perform a benchmark asap with FRAPS.
Here are the FRAPS results.
I use 2 versions of the same video. The first used file is encoded at 50 fps 1920x1080 p --> 3 tests done with FRAPS (2 with VLC, 1 with QuickTime player )
The second one is encoded at 25 fps 1920x1080 p --> 2 tests done with FRAPS (only with VLC)
2015-11-03 22:32:01 - vlc
Frames: 222 - Time: 4562ms - Avg: 48.663 - Min: 44 - Max: 51
2015-11-03 22:33:19 - vlc
Frames: 2712 - Time: 60000ms - Avg: 45.200 - Min: 23 - Max: 52
2015-11-03 22:38:42 - QuickTimePlayer
Frames: 1875 - Time: 60000ms - Avg: 31.250 - Min: 27 - Max: 35
2015-11-03 22:40:39 - vlc
Frames: 96 - Time: 3844ms - Avg: 24.974 - Min: 24 - Max: 26
2015-11-03 22:40:58 - vlc
Frames: 1500 - Time: 60000ms - Avg: 25.000 - Min: 24 - Max: 26
And here is a capture from VLC regarding the statistics when playing the 50 fps file (perdu = lost / missed)
Benchmarks.zip 42.8 K
Here are some informations.
Now, I can play my videos at 50 fps without losing any frame but I had to do some changes in the application settings.
VLC : usually with other computers, I never change anything with the default settings. With this one, I have to go Codecs settings and force the hardware decoder settings to DXVA 2.0
Apple QuickTime : this software is mandatory for installing GoPro Studio, but it doesn't install under Win 10 without a hack. Once QT player installed, even with the Direct X preferences set to enable, it's not possible to view a 50 fps video in a decent way.