GTX 1070 or 2 x GTX 1070 in SLI for VR?

[neu]

Hey Guys,

 

I'm currently testing an Oculus I've got for a few days with my below-recommended GPU just to see if it works for me and worth the investment of my PC to be "VR capable"

 

Apparently it does :)

 

I was searching through the net in the past days, but I'm still not sure what to expect from an SLI configuration. I'm thinking on buying one or two GTX 1070 cards for VR. While obviously even one card is a significant improvement over my current GTX 780, I keep wondering what the benefit of having the two 1070s in SLI would be compared to one only (proc: i7 4790k)

 

I've read so many answers and info that it's hard to find out which one to believe. Is there anyone here not just having an opinion but actually having a recent video card in SLI for VR? I'd be very interested to find out more about this setup's capability. How does it help having a higher FPS (about how much higher is realistic to expect) how does it cope with higher "pixel density" in VR, etc. I know it's not going to be a 100% improvement obviously, but I've read 15-30% and 50-70% as well and it's really not the same thing.

 

Any info would be highly appreciated!

Greetings. neu

Edited October 10, 2016 by neu

[StandingCow]

See what other people with VR headsets say but I have always said (and heard) get the single most powerful card you can instead of SLIing weaker ones.

 

I'd say wait for the 1080TI to come out and grab that, or a 1080. Avoid SLI if you can, I have it (2 980s) and wouldn't recommend it.

[firmek]

As far as DCS is considered there are multiple threads stating that DCS does not benefit from SLI.

[Pilotasso]

But it will with edge 2.0

[EntropySG]

Im apparently not very knowledgeable when it comes to technical things, but from what I see the rift in DCS in its current form does not care so much about fps. In preparation to my rift purchase, I upgrade my rig, brand new CPU, super fast memory, quality mobo for overclocking and a GTX1080.

 

At my current settings, when I start a more or less 'empty' mission, I get betwen 100 and 140 fps, depending on the area at 4k resolution in 2D. so the hardware should be ok

 

In the oculus rift during some 3rd party campaign missions, or our combat operations in mutliplayer with tons of ground units etc, my fps sometimes dips at the 22 fps range when shit hits the fan in the A10. according to the in game FPS counter that is.

 

but guess what, I dont notice it. At all. I dont know how they do it, ATW, ASW, whatever. My careful conclusion would be:

DCS is in the rift kicks ass, its super awesome and probably a crazy hardware upgrade is totally not needed. I can play the game at low FPS just fine

[Abburo]

Seconding StandingCrow: better then lower GPU in SLI it is always a single most powerfull GPU. (less burdening, more stable functionality, less computer power)

I've been there a while ago with 2x 770GTX in SLI and not going this way anytime soon. SLI is also a functionality which will be decomissioned in a while due to DX12 capabilities to split the workload over multiple GPUs no matter of their type or vendor (future is bright :)) .

And also from money persepctive there is no addon value having the solution proposed by OP.

[BitMaster]

Never ever again dual cards.

 

The only real dual cards that worked flawless were my 2 Voodoo2-16MB Glide cards, that damn worked as advertised, since then nothing but promises and no delivery.

[Gladman]

I had GTX780s in SLI. There is no advantage in DCS.

[cichlidfan]

To summarize. Don't do it. :)