is the gigabyte r9 280x better or the r9 290 not the r9 290x oky in matter or price and performance

Yeah its a good jump. If you can afford it, get it. However, I've been reading some articles that say the r9 290 has been having some fan problems, so while they have fixed that, you definitely should download their latest driver.
 


then when i download the driver it will work well i mean the fan ??
o and see my build and tell me is it good enough i didn't buy it yet
i7-4770k
from the comments the R9 290
4×4 G.Skill Ripjaws Series 1600
corsair HX / 1050 watt
Corsair Hydro Series H80i
antec formula 7 thermal paste
kingstone hyper X 240GB 3k
GIGABYTE G1.Sniper5
1TB wd
 
If you can afford a 290, it will play very well on your build.
The non-reference cooling cards have not come out yet, should be a week or two.
Non-reference refers to after market cooling (fans etc...) manufactors will add to make better cooling option from the reference model.

Sapphire, MSI, Gigabyte, Asus are the best in my option.
 
does that means that the non reference does not come with fans and i have to buy them later or that they are like a prototype and then you adjust it later with the new fans ??
 


o thats only well thanks really
 



get the H100i instead, its worth it