I use the 6700k with a Asrock Z170 OC Formula motherboard.

I was tying to get above 1150MHz for iGPU but I never get results above this frequency.

Example: If I tell it to run 1250MHz or one of the predefined profiles in bios (tried 1.70 and 1.90) it boots to Windows bu runs at a maximum of 1150MHz (used GPUz, latest version).

If I use XTU instead of the bios I get the same results.

 

 

Does anyone know what this can be?

Does however you're testing it result in a better score? If I remember rightly, GPU-Z doesn't pick it up correctly.

Thanks for your reply.

 

I just solved it!

It is a driver bug. With the older driver installed I can go above 1150MHz.

Maybe I should have waited an hour before posting.

I hope other people read this when the have the same problem. It cost me a lot of time.

 

Edit: With the older driver and faster speeds it did not get better scores as well.

Edit 2: I now use 20.19.15.4300 WHQL

Edited December 12, 201510 yr by Sparks.nl