Very positive, actually I already paid for the previous customized system which I cancel the order, now DELL holding up the payment till March for the new GPU instead of arranging a refund.
There is a forumer saying that DELL Canadian has actually once allow user to customize SXPS 16 with ATI 5730 in January, but it's a mistake for DELL Canadian to post up the system because actually they don't have any stock for ATI 5730 yet and end up this forumer downgraded the GPU to ATI 4760.
Referring to the product website:
ATI 5730, looks like a promising GPU with support of DirectX 11 but with lower clock speed of 650Mhz compare with 675Mhz for ATI 4670. Newer technology which is 40nm (5730) compare to 55nm (4760), thus, power consumption is lower, 26W (5730) compare to 35W (4730). Specification can be found on notebookcheck.net.
Maybe due to power throttling issues that happening worldwide make DELL to refresh to a newer GPU with lower power consumption.
More time to fund my money with tomorrow's CNY festivities.