I was wondering what 4 way SLI is like.

Has anyone tried it with 4 Titan X's?

Are there any negative things to say about it purely from a performance perspective other then the obvious price?

What kind of power consumption are you seeing in typical gaming situations?

If water cooled, how much radiator do you need to cool such a setup?

Sgt_Brewskie
Have you ever seen a video of the aftermath of an F-5 tornado?
 
It's sorta like that

Cool, well then if I ever build the system I will call it "F5 Tornado XXXX"

AnonymousGuy
4x SLI is completely a waste of money.  You get next to no additional scaling going past 3 GPUs.  You also occupy all the slots on your mobo so you can't run a sound card or 10-gigabit ethernet card or a PCI-e SSD or a raid card etc etc.

So it's more like aftermath of a F5 Tornado on my wallet...

Sajin
A very expensive space heater. 

Exactly.

It mostly translates into massive debt and epeens, rarely into actual gaming performance.

Sajin
A very expensive space heater. 

But a very cool looking space heater! I've always said, if you have the money why the hec not! Everytime I see a quad SLI setup, I must say it's a mild turn on.....
 
The correct asnswer for your question "What's 4 way SLI like?" is: "Orgasmically Nuclear"

I have 4 780ti classifieds, lol. Not for gaming much, but more for folding and aesthetic pleasure.

AnonymousGuy
That's mainly the only place I can see needing 4 gpu's in a case- non-SLI compute performance.  Or if you happen to need to drive 24 monitors.

I should get 24 monitors... Lol.

Folding is research for cancer and such, and is a great thing to be part of. I have 2 PC's that used to fold 24/7 for 330 days out of the year, and then I got my own power bill. Now I will run them occasionally, but won't be able to run 24/7 again. If you get a chance to set it up, you can also earn a few EVGA bucks to use on the EVGA.com store.

j2345912
One other thing is also, and I am sure some will not agree with me, however CPU limitation would be pretty severe....imo

Yea I kind of noticed with my 5820 Overclocked to 4.4ghz Firestrike is saying that I am CPU limited with the 2 cards... What's the deal with that? I thought CPU bottlenecks were just a myth? Jk

Also it's cool that EVGA is involved with the folding program. I have more respect for them now.

I just wanted to update. I gamed BF4 at 200% scale @ 1440P and Ultra no AA and I am getting about 90 FPS avg and with a overclock about 110 FPS average. That's quite a bump from the 60 FPS avg I was getting with the 2 cards. But, it still felt playable but choppy for some reason though. Actually my whole system feels kind of choppy now, even when I am just browsing the net. I don't know if it's because I have only 16gb of ram or more Nvidia updates need to take place or just some random hiccup. Perhaps it's the power supply?

AnonymousGuy
4x SLI is completely a waste of money.  You get next to no additional scaling going past 3 GPUs.  You also occupy all the slots on your mobo so you can't run a sound card or 10-gigabit ethernet card or a PCI-e SSD or a raid card etc etc.

Agree, and have had 4x SLI twice over the past 5-6 years.  Never again. 
 
Mainly because the return on investment goes down with each card added, it's basically the following (and it's been this way for years through countless drivers and multiple generations of Nvidia cards):
 
1x Card = 1.00x performance of single card
2x Cards SLI = 1.75x performance of single card
3x Cards SLI = 2.25x performance of single card
4x Cards SLI = 2.65x performance of single card
 
Diminishing returns past a 2-card SLI make it something that only leaderboard chasers should pursue (and that's fine, whatever floats your boat, records are fun of course). 
 
But aside from benchmarking software, you can load of BF4, Bioshock, etc, and you will get the exact fps gains on average as I've listed above. 4 cards don't even net a 300% fps gain.  But a 2-card SLI setup really does shine and maximizes value IMO.

200% scaling at 1080p is 4k (1080x2=2160 or 200%) so you were at 2880 or 5k, not 4k.

chicochaco
So I just got my 3rd card in the mail... I really like it. Plug and play install and nice scores on Firestrike Ultra and Extreme, have not gamed yet. I just slapped on a overclock and not really fiddle wit it. ASIC score is again 65% area very similar to my other cards. Sorry about the horrible cable management but I plan to watercool right after this so didn't spend much time on it.
 



 
 

Jeez oh pete that is nuts...