Recently I purchased 1 galaxy 470 kfa2, and w/that won 2 more of the same card. *)So, what would be the power demands of two 470 oc'd with air. And 3 470's oc'd with air. *)Currently I have a ThermaltTake black widow 850 w/ 70a on the 12v. I think that could handle two.(I rushed out to get this to try and install my 470 over the weekend, but my mobo doesn't work w/ it) Most likely wont run 3, just give the third to my brother. *)I mean will 3 really have THAT much more benefit in games? i7 930 oc'd with air for now. probably just 4gb ddr3, maybe 6.(Also what mem would you guys recommend? *)Also which of the boards would you guys recommend? And maybe you guys have some other ideas for a mobo. Not looking to go past 3 hund on the board though. EVGA E758-A1 3-Way SLI w/ E-LEET. heard these had a few problems and are older boards. Lifetime warranty though. ASUS P6X58D Premium Grab that open box most likley, if they still have it.
At peak 3-way SLI for GTX 470's will hit 800 Watts, on average its more around 750 watts. For regular SLI GTX 470, you're looking at 550-575 Watts So here's what you'll need 3-Way SLI GTX 470 PSU: 1200watt SLI certified psu. Regular SLI GTX 470: 850-1000watt SLI certified psu.
No not really. (since most cpus will bottleneck 3 way sli, even high profile ones) http://www.guru3d.com/article/geforce-gtx-470-2-3-way-sli-review/15
That PSU is SLI cert, but will it be enough for the overclocking I want to do w/just air for right now?
For regular SLI oc'ing yea it'll be fine. For Intel socket LGA 1156: "MSI Big Bang Trinergy LGA 1156 Intel P55" For Intel socket LGA 1366: "EVGA E758-TR 3-Way SLI (x16/x16/x8) LGA 1366 Intel X58" For AMD: "MSI NF980-G65 AM3 NVIDIA nForce 980a SLI"
That evga mobo better than the ASUS?? Yeah another question am I really gonna notice much of a difference between the 1 card or two on a 1920x1080 24"LED? I know I will on my 32" LCD native at 1080. oh by the way I do ALOT of video capture, and when doing that FPS drops a bit. I usually capture at 720p or sometimes 1080p. I think thats were SLI will help out. I will be getting 930 so it will be 1136. EDIT my LED display is a syncmaster px2370.
You'll notice a viable difference with two cards at 1920x1080 24"LED instead of one. (So SLI instead of single gpu) As for the mobos, the asus and evga are similar, so judge by whichever is cheaper. However EVGA does have really good product support. ALSO: If you don't plan on 3-way SLI then just buy a regular x16 x16 pcie 2.0 SLI mobo
The highest power consumption I have seen with my SLI was during Furmark 1.8.2 test with OC:750/1500/1650 clocks: 685W. My i7-860 is also OC'ed but durign Furmark it pretty much idles. This was with 197.75 drivers. The new 257.15beta will lower power consumption. During 3Dmark Vantage earlier max. 635W, now 585W. I have Corsair HX750W PSU and never have had any problems with SLI. My OC for GPUs is a mild one but best i can do with air cooling and Antec P180 case during summer time. Perhaps my new Corsair Obsidian 700D case will give me more headroom in overclocking. @theImported1: SLI is awesome in TF2
