I have a strange problem with my CPU (Core i5-4690k), when I'm using my AMD GPU (HD-7870 XFX). Even in games with pretty low system requirements (Counterstrike Global Offensive on the lowest possible graphic settings), my CPU usage goes for full load. If I use the integrated Intel HD Graphic chip instead of the AMD GPU, the CPU usage is much less.
This is my system:
- Intel Core i5-4690k
- Gigabyte Z97-D3H
- AMD Radeon HD-7870 XFX Double Dissipation
- 8GB RAM
- Windows 8.1 Pro x64
I already tried different AMD driver versions, made sure all Intel Chipset drivers are up-to-date, tried a new windows installation as well as re-installing the games. But nothing helped. My cpu cooler is still losing it if I use the AMD GPU. Everything is ok with the Intel HD Graphics.