Thanks for the info about Asus TurboV EVO tool, I was able to overclock my cpu to 4415 MHz.
Yes, very close. I see you have a higher HP graphics card, and a result a higher score there. I use two 1TB Seagate HDD's, which are configured as one 2 TB drive using Windows 8 Storage Spaces. It works great and doubles the read write speed of the HDD. The WEI does not rate the secondary HDD though when you use the SSD as the primary.
I suspect by your 7.9 score that you have not bumped up your processor speed with the Asus TurboV EVO tool. All you have to do is click on Fast and you should get about 4.32 GHz or so from the processor. It should boost your processor and likely memory speed to a 8.1 WEI score, and in your case an 8.1 overall.
I do not game, and actually overbought the graphics card (HD-7770). I got it for image processing and two software packages (Photoshop Elements, Lightroom) barely load the graphics processor at all. Another one Musemage which uses OpenGL to some degree puts a bit of load on it, but no more than about 20%. I know now I could have gotten away with a HD-6000 series card.