It's true, however the 5770 is cheaper, but it performs great for its price(149.99 ~ 159.99 USD,5770 Vs. 199.99 USD,460)
In conversion I believe this equates to $204~$217 SGD versus $272 SGD.
I was looking through the 501w~600w Modular power supply's on Newegg and this
one came up, its roughly $89 SGDEDIT:
In the case of the 260, theres one here
that comes in at the price point of the 5770, however it isn't Dx11 and it doesn't have modern features such as eyefinityAnd, last but most importantly it doesn't beat the 5770 according to this chart