I had a long conversation with intel support on facebook now i post it here.
I found a bug in drivers.
With drivers version - 184.108.40.20666.
I have stutters and freezes in CS GO, in DOTA 2 everything is fine. CPU Frequency same in both games.
With drivers version - 220.127.116.1167.
Stutters and freezes are gone in CS GO. But In DOTA 2 CPU frequency lowers to basic frequency of CPU sometimes it happens in CS GO as well but in DOTA it always on 2700MHz.
I don't even understand how GPU driver can affect CPU freq.
Although if i go to windows control panel and set performance to maximum CPU frequency normalizes in both games.
I've tried clean installation etc. it doesn't help
Here's the video of detailed view of the problem