I built an HTPC and used an Intel G620 CPU. Using the integrated graphics the Windows Experience Index for both Desktop Graphics & Gaming Graphics was 5.0.
I then installed an HD 6450 video card & the Desktop Graphics dropped to 4.7 and the Gaming Graphics increased to 6.2.
Why would the Desktop Graphics go down?
I thought about adding a graphics card to my HP desktop, but if adding a graphics card does not increase the rating then how can it be increased?