Is a GTX 690 viable for an $1,850 build?

So I have recently come in to some money and would like to build a computer. I have had numerous builds made out but all lower budgeted than this.  I would probably go with the i5-3570k for the cpu, 8 GB of G.Skill RAM, an AS ROCK Extreme6, an 850 watt PSU, and then of course the case and fan and other accessories.  I already have a monitor, a copy of Windows 7, and a 1 TB HDD.  My question is, should I put a GTX 690 in here? Or would i be better of getting a 680 and saving the money or using it to upgrade elsewhere?  Keep in mind I will only be playing at 1080p but do want a build that will last me a few years at the highest graphics settings.  What are your thoughts?

2 4GB 680s would be more money, more heat, and i would lose the cost efficiency because I would have to upgrade my PSU anyway to SLI them.

Two 670 would be smarter I believe. Aren't two 4GB cheaper than the 690? Anyhow for 1080P that is more than enough power unless you want every settings turned to max. horgen123

Does the CUDA cores from each 670s add together in SLI?

I know for a fact that VRAM doesn't.

Heck, a single 670 would do for 1080PMonsieurX

[QUOTE="MonsieurX"]Heck, a single 670 would do for 1080PSchreek

2 4GB 680s would be more money, more heat, and i would lose the cost efficiency because I would have to upgrade my PSU anyway to SLI them.

Schreek

An 850W PSU will power 2 680s no problem.

A dual gpu is still better than gpu's in sli or crossfire but since you want to spend that kind of money a you can get a geforce titan

You will have enough with 1850$ for the whole setup

You are fine with that PSU. You can even SLI three GTX 670's just fine. I don't recommend a GTX690. You will soon realize that 2GB is not enough. If you do want a Dual-GPU card, than a 7990 would be a better choice.ShadowDeathX

A dual gpu is still better than gpu's in sli or crossfire but since you want to spend that kind of money a you can get a geforce titan

You will have enough with 1850$ for the whole setup

evildead6789

[QUOTE="ShadowDeathX"]You are fine with that PSU. You can even SLI three GTX 670's just fine. I don't recommend a GTX690. You will soon realize that 2GB is not enough. If you do want a Dual-GPU card, than a 7990 would be a better choice.Schreek

A dual gpu is still better than gpu's in sli or crossfire but since you want to spend that kind of money a you can get a geforce titan

You will have enough with 1850$ for the whole setup

evildead6789

[QUOTE="ShadowDeathX"]You are fine with that PSU. You can even SLI three GTX 670's just fine. I don't recommend a GTX690. You will soon realize that 2GB is not enough. If you do want a Dual-GPU card, than a 7990 would be a better choice.Schreek

A dual gpu is still better than gpu's in sli or crossfire but since you want to spend that kind of money a you can get a geforce titan

You will have enough with 1850$ for the whole setup

evildead6789

i would get dual 670's instead

4gb only i think i don't think it's wise to get less than 3gb cards at this point.  

get a titan instead they run cooler and use less power and are even in performance with the 690

get a 680 now, Sli it later or sell it and get a 780gts