Your using cpu Z.
What does it say when you click on the graphics tab of cpu Z ?.
It should list the Type of graphics card.
And clock speeds.
If not uninstall all the old video card drivers from windows.
And re install the new video driver provided with the new card.
Or the problem Lies with an old version of Cpu z.
Install a more new version to properly detect a new cpu or graphics card correctly.
I think 1.69 is the current newest version though.