Corsair AX750 for dual 560ti, 570 or 6950?

Discussion in 'Power Supplies' started by DarthV, Nov 22, 2011.

  1. DarthV

    DarthV Limp Gawd

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    Thinking about going with a larger display, so I'd probably want to look at going SLI or crossfire. I think the AX750 should handle a couple of 570 or 6950 cards, right?
     
  2. NoOther

    NoOther [H]ardness Supreme

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    What kind of larger display? SLI or CFX at 1920x1200 is not really needed. Are you referring to a higher resolution than that? Or maybe multiple displays?
     
  3. DarthV

    DarthV Limp Gawd

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    Thinking about making the jump to a 30". Not enough room to go with 3 wide, so multi monitor gaming really isn't something for me.
     
  4. ballistic

    ballistic Gawd

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    The AX750 should be fine for those cards in SLI/Crossfire.
     
  5. Tsumi

    Tsumi [H]ardForum Junkie

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    It'll work. I'm using a 750 watt with a heavily overclocked i7 920 and two unlocked 6950s.
     
  6. DarthV

    DarthV Limp Gawd

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  7. dragonstongue

    dragonstongue 2[H]4U

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    dual 580s or overclocked 570s might be pushing it close for comfort, but for the rest i.e overclocked 6950s or 560ti you will be fine.

    As far as dual cards at 1920x1080, needed not directly, however there are some games that are able to always remain above "comfortable" playing levels/frame rates with eye candy turned up high. So it is beneficial. That being said, there is only a handfull of modern games, that take advatage of this, as long as you have a good cpu.

    Games such as Skyrim, BF3, Crysis 2, can easily max out most cards when settings are turned up, we all have our "edges" of smooth play after all, it is better to be on the upper edge of play then the lower edge after all. A 560Ti or 6950 single card do fine with any current game at 1920x1080 if settings are reduced some, a heavily overclocked 6950, 6970, or GTX570 GTX580 as a single card should be more then ample as long as you are not trying to run multi-monitor 3d gaming or something :p

    If I recall, dual overclocked GTX460 FTW editions, a core i7 920 heavily overclocked/overvolted(along with the rest of a "gaming" system) would draw somewhere around the neighbourhood of 540w/50a on the 12v when fully stressed, so there is still some breathing room, at least in the idea of "safely"
     
  8. dlewis4

    dlewis4 Limp Gawd

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    Yeah, the 750 will be fine with those cards... im running a 660 Seasonic X Series with an OC'd i5 and dual 6870's
     
  9. dragonstongue

    dragonstongue 2[H]4U

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    54a compared to 62a, I do know for GTX570 they call for 38a for single card and in the 40s for dual card use, this is for the full system not just the gpus. So lets say, with a high load, dual 570 and overclocked modern chip, you would be pulling roughly 600watts from the wall, a little less with a platinum power supply a little more with a bronze power supply.

    2x480, 2x580, 1x590, 1x6990 in this same system would be drawing anywhere from 620-720w not sure on the 12v but I imagine a low to mid 50a range. So either way with a good 750 thats able to provide enough power, you should be fine running any current cards even 2 current cards, seeing as they recomend 38-42a single or 45-50a dual use and X2 style cards.

    Course you also have an option of using a slightly less costly unit if you so choose, there is alot of them out there, Antec TP 750 Gold, Corsair HX750, or even Antec HCP series and such(I have HX750, same as the AX just not "rated" gold, but it achieves almost identical regulation, specs, and is like $20 or so cheaper for the most part, being built by CWT (DSG) base instead of Seasonic X base as is the case with AX750, both are excellent able to give the rated 750+, in the HX case as well as the AX/Seasonic X they can give roughly 820w+ delivered power before protections start kicking in)

    But anyways, not that I am done my spiel, for any current cards as you have listed such as 6950 2gb even overclocked using 2 of them or dual 560Ti or even dual 570 or 6970 you should have ample enough room, using dual 580 might be pushing it, and of course dual X2 cards would be asking for something to happen :p
     
  10. NoOther

    NoOther [H]ardness Supreme

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    A single 580 or 6970 should handle the 30" at 2550x1600 as well:

    http://www.hardocp.com/article/2011/08/17/asus_rog_matrix_gtx580_platinum_video_card_review/4

    Notice both the 580 and 6970 can get reasonable FPS on most games at 2550x1600 with all options up, except perhaps BF3. That said 2 6950s or 570s could be had for just a little more.
     
  11. billt

    billt n00b

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    I use AX850W with 2 x 6950; works great.
     
  12. dragonstongue

    dragonstongue 2[H]4U

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    I think of anything, a 570 or 6950 would be sufficent, overclock them(eqasily done) and you pretty much have a 580 or 6970 respectively for less.

    Not many modern games really need settings jacked as high as they can go to look really sweet, a 580 or 6970 does have more room to breath as far as higher settings and such due to more shaders among other htings, but the difference for the most part is not much, BF3 is one of the few games that actually shows a pretty decent margin of difference.

    Dual cards are more meant for multi-monitor setups then anything else. A single card can handle that kind of resolution with decent frame rates, and some eye candy. BF3 with dual 580 3gb cards, maxed out in every regard with a 2550x1600 monitor or multi-monitor does still caugh some, but its really only one of the few that do, most other games simply are not well optimized enough to use them well.

    Skyrim, Crysis 2, MW3, you name the title, most dual cards run very well in them, even the single cards as of now tend to be great performing without sacrificing much, in regards to reso or eye candy(though its debatable if you really need to do so and a matter of opinion) though for single card, 6950 or GTX570 would be the best for that reso, or dual 560/560TI or dual 6870(the 6870 especially can be had quite cheap, you might be able to find 2 of them for the same price as a good 6950 or 560Ti)

    For the prices, 6950 2gb very good models can be had for around $270 after tax and such, 6970 for in the $330 range, GTX570 around $330, GTX580 around $460 the 3gb model around $550.

    Generally it is a good thing to get the best clocked, best cooling model, they do tend to get warm, the better clockers 9/10 tend to be the aftermarket cooled fancy edition cards. Just remember, the more the Vram, the better, especially if you plan on cranking the settings up and using a high reso.
     
  13. pitbull46

    pitbull46 Limp Gawd

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