That score really means nothing and does not impact the performance.
You can get a higher score by getting better drivers etc.
Though not sure what your expecting from a mobile gpu, remeber a gtx690 destop card will be getting around 7.8 etc.
The reality is that the slowest component in macbooks is the gpu. Your results are fine
yep but i saw other rMBP got around 7.2 and i've got it before have this problem
and i think now performance of vga has drop
Okay i see. Im wondering myself if windows has a different index for laptop and desktop, but your right you should have about 7.2
I suspect your index might have been taken without the deducated gpu running. Did you run it with just the HD4000
Review confirmed it
http://www.mobiletechreview.com/notebooks/MacBook-Pro-Retina-Display.htm
In a review written "(Apple blocks Windows from accessing Intel graphics)"
i think i didn't use Intel HD4000 too
do you think that i should send my rMBP to customer service ?
I do not think you have a hardware issue.
Most probably driver. Have you got the latest bootcamp drivers.
Also try drivers from nvidia for the gt650m