Three way SLI GTX 670 4GB FTW vs two way SLI GTX 970

[Bacon12]

I'm currently running three EVGA GTX 670 4gb FTW's in SLI... I use a triple monitor setup for gaming using Nvidia surround. I'm looking to upgrade, and was thinking of going with two EVGA GTX 970's Superclocked ACX 2.0 4GB, but I have not found any benchmarks online to justify said purchase, ($700.00) i.e. is this really a significant upgrade? I'd appreciate any input you all have. Thanks

 

[justaguywithagun]

its been a week or two since ive read any reviews so perhaps others could correct me if im wrong, but generally a gtx670 is pretty equivalent to a gtx760. a single gtx970 is roughly equivalent (generally just a few percentage points slower) to a 780ti. do the math, itll be a sizeable upgrade in terms of performance.

edit: yikes. just noticed that youre running triple, not dual 670's. i dunno. there really isnt anything out there review-wise, though typically you gain 50-75% increase with a second card, and something like 35% with a thirds in SLI capable games.
games that arent sli capable will absolutely show a massive benefit with sli970's, other than that its a guess. if i had the cash sitting around, id do it and OC them

 

[endeavour37a]

Just my thoughts, 3 cards are not the best idea for a few reasons like power, poor scaling and introducing game specific problems, 2-way SLI is the best solution. With that said I would go for 2 970s and try to sell your 670s for a fair price to someone looking to SLI their single 670, the 670 is still a good card and would be the way to go for a person with only one to get them by until Pascal is released.