Compare the 780 Ti at 700 USD to the R9-290 at 400 USD!
Performance within overclock delta?
3DMark Firestrike
Nvidia
780 Ti @ 1233 Mhz Clock
PRICE : 700 USD
3 GB GDDR5 (Really Nvidia?)
Score : 5622
GPU Score : 6118
AMD
AMD R9-290 (NON-X) @ 1113 Mhz Clock
PRICE : 400 USD
4 GB GDDR5
Score : 5254
GPU Score : 5581
For Total Score, that is a 7% deficiency in performance, for a 10.7% clock disadvantage!
For GPU Score, that is only a 9.6% deficiency in performance, for a 10.7% clock disadvantage!
Just wait for R9-290 (NON-X) with non reference coolers at 1200+ Mhz!
ADDED:
ADDED:
AMD
AMD R9-290X @ 1150 Mhz Clock
PRICE : 550
USD
USD
4 GB GDDR5
Score : 6045