Hi, recently my xfx 9800gx2 started acting up so I sent it back to xfx, now they told me that they can replace it with the ati 4890. DX is higher on the ati .. 15 thumbs up but it has no shader clock which would probably result in lagging with shader on.. say in a game like crysis. Am I correct? Now my question is, should I make this exchange deal or wait untill they get a 9800gx2 replacement which they probably wont get or get the HD 5850 standard edition for paying extra $100?
The even trade for the 4890 seems fair if you want instant results.
Where as if you wait for a replacement card you would get the same performance but you will have to well, wait for it to come back.
The trade for the 5850 + $100 is also fair in my opinion. A new 4890 will cost you ~$200 and a new 5850 ~$300, ~$325 for an XFX a difference of $100-125 if you look at it that way.
Do you want more FPS in your games/future proof with DX11? What are your computers specs so we can make sure you can get the most out of the 5850. If you want to have your computer up and running the fastest then the 4890 is your choice. If you can afford to wait then the 9800gx2 replacement is for you.