Pixelated / Blurry Render

Hi,

i really need your support here,

can't find away to have a render preview or a render result with Dimension CC.

I attach Screenshots with my system and the output.

I have an almost realistic design output but i can't render my project.

The Rendering Result is something like this

is it a problem with system requirements? do i have to update the system? or i can solve it with other way.

Thank you!

BK