VR 1070x2 or 1088

[Eaglefire Video]

I'm looking into setting up for VR gaming and was wondering if it would be better to run dual gtx 1070s with sli or one gtx 1080. I am running a Alienware Aurora r6 With a Core i7 8700 with 32 gb of dell ddr4.

[LukeSavenije]

sli isn't worth it in general imo

 

looked into the rtx line yet?

[suchamoneypit]

One single higher performance card is always much better. Get the 1080. Lots of games either don't support crossfire/SLI or they do but poorly so its unstable and nothing is more frustrating than an hour into gaming randomly crashing or to have stuttering while playing. This is from personal experience.

[BobVonBob]

Generally it's better to run a single graphics card, as not all games have SLI profiles, and this is especially true with VR titles. In the future it may be a good candidate for SLI scaling given the nature of how VR is rendered, but right now there are very few SLI VR games.

[MrMcMuffinJr]

5 minutes ago, BobVonBob said:

Generally it's better to run a single graphics card, as not all games have SLI profiles, and this is especially true with VR titles. In the future it may be a good candidate for SLI scaling given the nature of how VR is rendered, but right now there are very few SLI VR games.

buy a 1070ti for $300 and OC it to 1080 perf

https://www.ebay.com/itm/254141498214?ViewItem=&item=254141498214

[Sakkura]

6 minutes ago, suchamoneypit said:

One single higher performance card is always much better. Get the 1080. Lots of games either don't support crossfire/SLI or they do but poorly so its unstable and nothing is more frustrating than an hour into gaming randomly crashing or to have stuttering while playing. This is from personal experience.

You have personal experience with VR SLI?

[Emanbaird]

VR does not like SLI, SLI increases latency, and the majority of titles does not support it

[Sakkura]

Just now, Emanbaird said:

VR does not like SLI, SLI increases latency, and the majority of titles does not support it

VR SLI does not increase latency appreciably. It is also completely different from regular SLI.

 

But the problem of limited support still applies (even more so than for regular SLI).

[Emanbaird]

2 minutes ago, Sakkura said:

VR SLI does not increase latency appreciably. It is also completely different from regular SLI.

 

But the problem of limited support still applies (even more so than for regular SLI).

I wasn't aware that there was a different thing for VR SLI, i guess i thought it still just rendered every other line, but i guess VR SLI just renders each eye per card?

[Sakkura]

Just now, Emanbaird said:

I wasn't aware that there was a different thing for VR SLI, i guess i thought it still just rendered every other line, but i guess VR SLI just renders each eye per card?

That's the idea. Here is Nvidia's page about it.

[Mick Naughty]

For just vr the 1080 can work. For anything else id do the 1070sli or 1080ti.

[Frankenburger]

Depends on the games you play TBH. SLI is pretty good when it works, and when it doesn't work by default, you can get it working by changing your driver settings. Not all games support SLI though, and some games use TAA methods that breaks SLI scaling.

 

SLI 1070 is going to be faster than a 1080Ti and 2080 in compatible games. But without knowing what games you play, most people will just tell you to get the single fastest card you can afford to play it safe.

[suchamoneypit]

21 hours ago, Sakkura said:

You have personal experience with VR SLI?

SLI or crossfire in general.

 

I wasn't aware VR SLI operates different from normal SLI, but the reasoning for choosing the single faster card over 2 slower ones remains the same and still applies. 

[Zeitec]

Well I'd go 1080 for a couple reasons. 

1. Barely any VR games support SLI

2. Given you're running an Alienware you'd also have to upgrade your PSU to add in another card, where you would probably still be fine with a single 1080