The r290x has 10 percent more calculation units yet it cost 150 more
The Reference R9 290X is approx same price as the present AIB GTX 280's, both are equal to a Titan which cost $1000, and an $430 AIB R9 290 OC'd should run close to the same speed and CF 290 @ $800 gives us oblivion.
Hum - It appears, if they want to be competitive, the Green Team had better Price the Reference GTX 780 Ti below $400 considering the 290 does best with 1440p and 1660p Displays.
Not only is the GTX 780 being challenged but the $1000 Titan has been obliterated by the Red Team.
There will an interesting Price War come Xmas for the Last and the Best of the 28nm die GPU's.
With my 2560x1440 PLS Display I'm waiting for an AIB R9 290 for approx $450 CDN, perhaps with an incentive Game Bundle, come Xmas ;o)
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i7 2700k/ASUS P8Z68-V Pro Gen3/Corsair H110 AIO (running @ .996v/1600Mhz to 1.376v/4600Mhz 24/7 between 36 to 67C), 4 x's 4GB sticks of Samsung MV-3V4G3D-US DDR3 running at 1.34v/1866Mhz 9-9-9-24 1T with 4GB's assigned to a RAMDisk drive to handle Win7 sluff and negate writes to the SSD, Samsung 840 Pro 256 SSD, 2 x's WD5001AALS HDD's in Raid-0, 1 x's WD1002FAEX 1TB, ASUS DRW-24B1ST DVDRW, Hauppauge WinTV HVR-1250 PCIe, XFX 850W Pro Black Black Edition modular PSU, EVGA e-GeForce GTX 280, Fractal Design ARC Midi R2 case, QX2510 Samsung PLS 2560x1400 res display at 120Hz.