[SOLVED] Could my single GTX 1070 give me decent fps on a QHD 3 monitor setup?

[TheJuggernaut]

Upgrading my gaming setup since my microboard 3440 superwide is having backlight issues.

I've got the Gigabyte GTX 1070 Windforce OC 8GB GC and I've been pretty happy with it on my 3440x1440 at 100Hz. Whether she'll handle a 3 monitor QHD Setup is the question. The monitors I'm going w/ are the ONN 27" curved gaming monitors.
Specs:
27" / 2560x1440 / 165Hz / 1ms / 1500R / Display Port

I admit, I was kind of surprised the 1070 comes w/ 3 Display Ports (which my understanding on the DPs is they're the fastest option around). Pushing 3 QHD monitors at 165Hz though? I doubt it'd get much higher than 60fps. Still, I think it's time I spoiled myself a bit, and plan on getting a 2nd 1070 and SLI'ing the boards. Used ones can be had for < $400 on fleabay. I guess the other option is to go with a beefier GC...I could sell my current card and upgrade, but dual 1070s would probably be more capable than a single hulk GC...what would you guys recommend?

I was curious what type of FPS I could expect with a dual card setup? What's the best site to model GC/monitor configs?

 

[Karadjgne]

Depends on what you run. Max res is 7680x4320 which happens to be 3x (2560x1440). Out of that, you'll only game on the center monitor, so fps will be slightly higher with the 2560x1440 having less pixels to populate in 3d vs the 3440x1440 prior.

If you try to stretch the game over all 3 monitors, fps will crash and burn, hard. The side monitors don't take much power to push, it's all 2d video at most.

Sli has one foot in the grave, the other foot standing on the coffin. The only place it'll be applicable is in games running DX11 or prior and hasn't been natively supported since Win8.1. Anything DX12 or Vulcan api based is mgpu (multi gpu) so does not use the sli bridge at all, it uses both gpus simultaneously not synchronously, so ram is added, But needs mgpu support in the game to take advantage of that. Because of size and complexity, there's very very very few games with mgpu support and none that are cross platform ported, either to ps5/Xbox or from ps5/Xbox.

Single gpus such as the 2070Super, or above get not only better fps than 1070SLI, but also more consistent performance with none of the sli game dependancies.

It's why none of the 30 series excepting the 3090 even has sli capability, there's simply no point and modern games lack any such support.

I'd save up for a decent card, like a 3070ti (which can be had for roughly 3070 prices right now) then sell your 1070 for whatever the market can handle, to offset the cost a little. You'll get far better 1440p results at very good fps, no sli compatibility issues, and not get someone else's possible issues with a half dead oc abused 1070