Ok guy, i was suspected the New MacBook 's 9400M graphic card before i buy it. But i am really surprise after i brought it and install NFS UnderCover into it.

Here's my Macbook Spec:
Intel Core 2 Duo 2.0Ghz P7360 3MB L2 Cache\1066Mhz FSB, Centrino 2. (RM4799's model)
3GB DDR 3 1066Mhz (Free Upgraded From Machines)
160GB Sata
9400M Integrated Graphic Controller 512MB (After upgraded RAM, 512MB Total Show in Dxdiag. I think if the ram goes to 4GB, 1GB Video RAM will be shown

)
NFS undercover 1280x720 , AA x6, Shadow, Detail , Cars , World all set to very high. Running very (yup, very) smooth compare with my desktop. Just brought it few days, so just tested NFS only, will test other games coming soon

Desktop Spec:
AMD Athron X2 4200 (2.26Ghz, 1MB Cache, 1600Mhz Hyper Transport)
4GB DDR 2 667 Mhz
Asus 8500GT Top 512MB DDR3
320GB SATA II 7200RPM 16MB
Result: 1280x720, AA x4, All detail, shadow, world, cars, set to very high = Smooth when driving at Highway, A bit lag inside City, Exspecialy when start a race with other cpu player, very lag. 1024x768, all setting are same as above . Very Smooth at all place and race.
Another Mac: iMac Intel, Late 2007.
Intel Core 2 Duo T7200 (2.0Ghz\667Mhz FSB\4 MB L2 Cache) Centrino Duo.
Intel i945PM Chipset
2GB DDR 2 667Mhz
ATi X1600 128MB DDR2
160GB SATA II
Result: 1280x720, AA x 0, All detail, shadows, World, Cars, Set to Medium = Smooth, but not very smooth. Will lag when have many tree and smoke. 1024x768, AA x 2, All Detail Set to High= Smooth, But not very Smooth, Not lag when have many tree and smoke .
Here's what i can test currently . I did not have software to test , but all the information above are honest testing. Not siding MacBook. Will test other games when free
Consolution : For 13.3 Inches, 2Kg, 0.95 Inches Slim Notebook, and the design and the build quality, RM4799 definitely worth to buy. Games performance is good in it's class, consider the size and the weight, the performance is acceptable. For Intergrated Graphic Card Performance, MacBook Definitely will give you a surprise