280X still better price/performance

How is that? the 280x isn't twice as fast yet it costs twice as much.

280x MSRP is around 320 - 350. So not 2x as much as 270. Also KH/Watt is better on the 280x than the 270.

Not in the US. Cheapest 280x available at newegg is $499. There are some of the lower clocked 280x's at amazon for $469... vs. 270's @ $200-229

Last week you could've had most 280x's for $400 easily. This week the lowest I'm seeing is $449 from reputable vendors. Prices do fluctuate. But the KH/Watt is still much better for the 280x than the 270.

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=8573335&CatId=7387