670 4GB sli for 1440P gaming

[grandmasterb]

I currently own a 670 4GB Gibabyte card and can pick up a 2nd used for $130.
I am currently using a 1080 60hz ips and does fine but will be buying the Acer 27" 1440P IPS 144hz monitor when it is release very soon.
I see most benchmarks use the 2GB models for reference and I have a hard time finding 4GB sli benchmarks with current games (BF4, Crysis). Would I see a difference in High settings vs Medium settings on a 1440P monitor?
I also believe with Display port 1.3 and 4K ips 120hz is a few years away.

Will 670 4GB SLI work well with current games at 1440?
I know it won't push 120fps max settings but will it be worth the $130 to go sli?

This is my first time posting so be nice with the comments.

 

[chris987]

for 130$ i would get a second gtx 670 4gb, as long as the psu is good enough! also what are your other specs ?

 

[grandmasterb]

I just upgraded and got a 5930 process for $500 at a local Micro center.
760 Watt PSU, 5930k, 16gb 20133 ram, Samsung 850 pro ssd
I bought the 1st 670 4GB about 2 years ago for $430 so, buying a 2nd for $130 seems like a good deal.
I see this benchmark on BF3 but wonder what BF4 would do.
http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_670_SLI/6.html

 

[chris987]

why did you spend that much money on the cpu? for just gaming purposes a quad core i7 with higher clocks 4790 for example, would offer killer performance at half a price.! anyway, since you have the 4gb version i say you give sli a try, you will see difference at 1440p ! i hope the 760w psu of yours is a good one! any chance its a AX corsair?

 

[grandmasterb]

Yes ax corsair psu, I wanted the many pice lanes for future pcie ssd, 16x16 sli, and do very little video rendering (camtasia) but mainly for pice lanes.

 

[chris987]

Yes ax corsair psu, I wanted the many pice lanes for future pcie ssd, 16x16 sli, and do very little video rendering (camtasia) but mainly for pice lanes.

thas a top notch psu...