The most you can get from Asus at your budget are these:
Asus 14"
A45VS-VX026H, i5-3210M + Nvidia GT645M@RM2199[2.4kg], 2GB, 500GB, W8
15"
N56VZ-S3151H, i5-3210M + Nvidia GT650M@RM2799[2.7kg][B&O], 4GB, 750GB, W8; color: black
If you are willing to consider other brand,
Lenovo 14"
Y400, i7-3630QM + Nvidia GT650M@RM2799, 4GB, 500GB, W8, 120wPSU, swappable ODD
Y480, i7-3630QM + Nvidia GT650M (GDDR5) @RM2599 [JBL], 4GB, 500GB(5400rpm), backlit keyboard, freeDOS
Y480, i7-3610QM + Nvidia GT650(GDDR5)@RM2699[JBL], 4GB, 500GB(5400rpm), backlit keyboard, W7HB
Among all the choices, which 1 is better in hardcore gaming?I don't mind topup abit to get better performances