QUOTE(kucingfight @ Sep 29 2009, 08:33 AM)
Anyways juz to share something here. (i'm from the Asus k40/k50AB clan)
Good news, finally found a program that can OC 4570.
AMD GPU CLOCK TOOL
* OC at your own risk
Nice nice, finally something to drug up our 4570.
@ 700/600mhz... (680/500mhz stock - ddr2 version)
3dmark06= 3300 from 3000 
Studio 15 should default @ 680/800mhz. OC at your own risk again.
Wow, thanks for sharing bro =) Do this work on HD3450?
QUOTE(kae7 @ Sep 29 2009, 09:47 PM)
i plan to get Dell Studio 15
Intel® Core™ i7-720QM processor (1.6GHz, 6MB Cache)
Genuine Windows Vista® Home Premium SP1 64 bit (English)
4GB Dual-channel 1333MHz DDR3 SDRAM (2 x 2GB)
320GB 5400RPM SATA Hard Drive
15.6 " 720p WLED (1366x768) Display with TrueLife™
512MB ATI Mobility Radeon HD 4570
it seems good but the graphic card only 512MB..
I would suggest you to go for Studio XPS if you wanted superior GPU.