How much will GTX 780 go down by when GTX 800 is out?

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1

I am planning on building a Gaming PC, for the graphics card the max im going to spend is £299. I am thinking about getting the EVGA GTX 770 SC which is £269, but im not sure if i should wait a month untill GTX 800 is out and try and get a GTX 780 if the price comes down alot? Any ideas :P

Rig:

CPU: Fx-8350

Cooler:Cooler Master Hyper Evo 212

Mother Board: Asus M5A99X

Ram: G.Skill Ripjaw X series 8GB

PSU: 600W corsair

HDD: 1TB

Much help needed ;)

PS.. is the GTX 780 worth the extra money over the GTX 770 SC?

2

Unlikely that the 780 will go down in price. Usually they just go out of stock as the GPU is not manufactured. 

3

well... comparably... look at the prices with GTX 680... so not much if at all

4

Looks like a decent build.

GTX 770 SC is a great card.  If the 780 is on the edge of your budget, or if there is a large price difference, just grab the 770.