Ultra High End Tri Sli - Need Advice

mo

Distinguished
Apr 7, 2004
339
0
18,810
Alright, I am going to upgrade my computer fairly soon from the current setup I have (Current: i7 950 @ 3.7 ghz//Asus Rampage III Formula//12 Gb DDR3//7970 @ 1200/1600).

My intention is to build an extremely high end gaming machine. I currently game on my 27" IPS panel running @ 1440p. I have 2 additional displays that I use as extended desktop but I only use the one for gaming and I do not intend to use eyefnity or surround. However I may upgrade to 4k in the future. As it stands now my main use of the PC is 1440p gaming.

I would like a configuration with which I can maintain an FPS in excess of 60 in any game with everything at maximum possible settings. I can tell from experience that a single 7970 will not do this @ 1440p. For example while playing skyrim with a lot of mods and high end ENB presets I can drop to FPS that are below 20. I am aware that my old cpu is a factor in this, but regardless I want to futureproof.

I have already decided on my motherboard, cpu, case and psu.

Note: I live in australia and newegg, amazon etc are not an option for me. I will be doing my shopping from PCCasegear

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($279.99 @ Microcenter)
Motherboard: Asus Maximus VI Extreme ATX LGA1150 Motherboard ($399.99 @ Amazon)
Case: Corsair 900D ATX Full Tower Case ($346.76 @ Amazon)
Power Supply: Corsair 1200W 80 PLUS Platinum Certified ATX12V / EPS12V Power Supply ($299.99 @ Microcenter)
Total: $1326.73
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-06-10 17:51 EDT-0400)

I need help deciding my gpu options. I could wait and see what AMD offers up with their 9xxx series near the end of the year but I want to consider my options right now. As such nvidia is the way to go since I am looking for the fastest. My budget is not a concern but at the same time I do not want to throw money at stuff that will have no tangible benefits.

To reiterate, I am looking to game @ 1440p (possibly 4k when it becomes mainstream), do not intend to run surround/eyefinity and want frames in excess of 60 in any game with everything turned to max. Also keep in mind that given next gen consoles share an an x86 architecture, we might have ports that are more taxing than we were used to before.

Given that my options are basically between multiple 780s or multiple titans, I want to know what is the best option. I've done some research and the difference in a Titan and 780 is not that much. Regardless the 6gb of VRAM on the Titan is quite attractive to me since 1440p is a lot more pixels than 1080p and I do not want to upgrade/change for some time to come.

I've also looked into sli scaling and it seems that in 90% of the games going from 2 to 3 cards gives meaningful returns but going from 3 to 4 cards is negligible impact.

So my question is : 2 or 3 780s or 2 or 3 Titans? I dont think adding a 4th one will do me any good. Atleast not until 4k. Also correct me if I am wrong but 4 way SLI does not work with the 780 atm?

As a secondary question, I will be using a closed loop WC system for my cpu and will be OCing it a lot. I am fairly experienced at building computers, but have never built a custom water cooling system, and to be honest am reluctant to do so for the 2 or 3 titans/780s I will buy. What I am looking to find out from someone who has experience is how feasible are 3 Titans or 780s aircooled in a large case such as the 900D. Will there be any OCing headroom if any at all? I may end up using a custom WC solution, but atleast to start with I will want a regular air cooled system except for the closed loop WC on the cpu.

Thanks for reading and appreciate any help.
 

dannyboy2233

Honorable
May 24, 2013
1,599
0
12,160


For a build of this caliber, definitely go EE. The motherboards have so much more support for multiple SLI; you need to make sure that you get a motherboard with three to four full x16 electrical slots, such as as workstation motherboard from Asus. Depending on what you do, I would choose the different cards; more rendering is better for Titans, whereas straight-up FPS would probably benefit more from 780's. What you could also do is Tri or Quad SLI 7970 GHz, which performs extremely well. Make sure that they have substantial VRAM if you plan to go multimonitor.
 

mo

Distinguished
Apr 7, 2004
339
0
18,810


I was already only considering Nvidias offering for sli. Also the 770s have just 2gb of VRAM. I highly doubt it will do. Atleast the reference designs so far only have 2gb VRAM.

Also, is air cooling a tri or quad sli setup in a large case such as a Corsair 900D feasible? Another question is, if I go with air cooling, I am assuming reference design with the radial fans are my only option? Since the custom coolers like the ACX from evga etc have axial coolers that blow air back into the case?
 
The CF comment was in response to danny's comment .... AMD needs to fix CF b4 I can recommend it.

2 GB is fine for your 1920 x 1080 monitor . But 4GB models are available from Asus, Gigabyte and MSI

http://www.amazon.com/Gigabyte-GDDR5-4GB-WINDFORCE-Graphics-GV-N770OC-4GD/dp/B00CU9GOAO
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130824

Bunch listed here;
http://www.techpowerup.com/gpudb/1856/geforce-gtx-770.html

I really don't see a need for 3 or 4 way SLI w/o 3 monitors.
http://uk.hardware.info/reviews/4440/12/nvidia-geforce-gtx-770-review-incl-3-way-sli-and-frametimes-battlefield-3---1920x1080-+-frametimes

Id upgrade your monitor to 144Hz
http://www.newegg.com/Product/Product.aspx?Item=N82E16824236313

I have had no problem with SLI builds in even mid tower cases.
 

mo

Distinguished
Apr 7, 2004
339
0
18,810


I have a 1440p monitor which I use for gaming. 2 additional 1080p monitors which serve as extended desktop only.

3 780s are looking very attractive atm, but the 3gb VRAM is what is putting me off. Does anyone have links to some temp comparisons of tri/quad sli setups with water vs air?
 

dannyboy2233

Honorable
May 24, 2013
1,599
0
12,160


I hate CF as well, I just thought I'd try to provide something for everyone.