My first laptop has GT 650M 1GB in it with Intel HD Graphics 4000 chip, and the other one has got ATI Mobility Radeon 4650 2GB. I was wondering, is it normal that Radeon has a better Windows Index (5.9) than the GeForce (4.6)? When buying that I thought it would've been more powerful even with 1GB.
Also, when I open DirectX Diagnostic Tool (dxdiag in Search) on my GeForce laptop, it says Intel HD Graphics 4000 under "Display", and no mention of GT 650M. Is that normal, is it being recognized or only the Intel HD Graphics chip? I do however see a GeForce under Device Manager, so the hardware is there, but is it working?
I just found it weird that my laptop that was twice as expensive (if not more) with GeForce GPU has an lower overall Windows Index (4.6) while the cheaper one has 5.5 Windows Index - it's all mostly because of GPU, which is bringing the whole overall number down.
I believe that is normal for whatever reason. When I initially received my Lenovo IdeaPad Y470 with the nVidia GT 550m, I too was curious to check out my WEI score (even though it's more or less useless). Windows only recognized the Intel HD 3000 graphics core.
Of course when I play games I can tell the difference between when the GT 550m was being used and when the Intel HD 3000 was being used (I manually switched off the GT 550m). Games I tested like Crysis which ran pretty smooth with the GT 550m turned into a stuttering series of "stop-go" actions with the Intel HD 3000.
Just install a game that you know is demanding similar to Crysis. At 1366x768 resolution the GT 650m should be able to play the game smoothly at high settings. I would guess probably around an average of 36 FPS in the 2nd chapter "Relic" based on my testing with the older and slower GT 550m.
If you get a slide show / lots of stuttering then you know something is wrong 'cause that the performance you can expect from the Intel HD 4000 playing a really graphics demanding game.