Originally Posted by Defoler
And to the OP:
I didn't read the whole thread, but here are my thoughts.
To have any use of 120fps, you need a 120hz monitor. If you don't plan to use one, all this thread is useless.
A couple of 580 will not guarantee 120fps in every game, in every situation. Once you crank up AA, it will starts to get lower.
2x590s is a complete waste for a single monitor. And even that will not guarantee 120fps in every game, as some games just don't scale as good with 4 GPUs, and some even will go less.
If you have to have a very silent computer, pretty much the only option is a couple of 580.
69x0 series are very loud, and 2x590 will also be pretty loud as they will make quite a lot of heat, and you will have to keep the fans a bit higher.
If you get a couple of 580 and a 120hz monitor, you might not get 120fps in every situation, but it will be close enough for the games to be very fluid and be good enough for your needs.
Defoler is technically correct, however, he did forget that you can run 3-Way SLI and dedicated a 4th GPU to GTX 580 level Physx IF you are having scaling issues.
I want to mention that while Levesque is correct the 6990 + 6970 setup is definitely a strong setup, it does beat the GTX 580 SLI simply because its 3 GPUs vs. 2 GPUs in your case. Levesque probably didn't see the higher budget, or he would have recommended 6990x2 which is even faster.
I personally just came from GTX 580 SLI, capable of 965 MHz clocked on both, its definitely a game winner for most people. IT WILL NOT GET YOU 120 FPS+ IN ALL GAMES. PERIOD.
I have the ACER GD235Hz (1920x1080@120Hz) monitor. Playing above 120 fps on a single monitor is soooooooooooo nice its all I care for. I am not used to my multi-monitor setup. I added 2 nice and cheap 1080 LED LCDs to my ACER as more of a gimmick and production value than my gaming needs. I am not used to it, and I am not a huge fan of bezel splitting. SO I primarily play on my pride and joy: the Acer.
The GTX 590 is not an easy overclocker on water. Its even harder on AIR, that being said, its quiet, its fast, and works well right out the box.
When comparing it to the GTX 580 SLI setup, rather than thinking of it terms of QUAD SLI vs. SLI or TRI-SLI, I look at it as a slower Quad Core vs. a faster Dual Core/Tri-Core. Something like a 2.6 GHz Core2Quad vs. a 3.2 GHz Core2Duo.
Hitting 30% OC was a huge gain in performance, I hit 822 MHz stable in Heaven, and it performed admirably. Thanks to Alatar you have already seen it. That was from the official benchmark thread for Heaven on OCN. I am 3rd place. Behind the likes of only Faster and CallSignVega who are using true overclocked GTX 580 quad SLI. I don't even hope to achieve that.
Downside, numerous titles and applications currently have a invisible performance throttling due to what we believe is either power draw or overclock protection. IF YOU are not overclocking, this is truely the only probably permanent downside to these cards that you won't have to deal with.
The scaling needs work, but this is true of every dual-GPU card ever released. AMD or nVidia, we all have issues from time to time. Sometimes QUAD-SLI scaling isn't there, but it does require a hefty power supply, a solid motherboard, and a CPU than can unleash them. Any one weakness in the chain, and the entire system is held back gaming wise. The microstutter is marginal at best and various from none at all to obviously needs driver tweaking. Although 120Hz monitors (notorious for the fluid motion) is obviously more sensitive to microstutter, I find it very manageable on 270.61 drivers so far. I am only running 267.85 to overclock.
Getting a GTX 590 either single or double is really joining a small community around the world. And will be a unique experience that very few people will be apart of. That specifically is very enticing to me. Some people can't afford it, some people don't want it, and some people think its crap for X Y Z reason. Which is perfectly okay to me. I don't like doing what every body else does, but I did my research and I took a little bit of gamble due to the VRM scare, but it paid off. 100% satisfied so far, just wish I could turn off the performance throttling in various 3D Mark benchmarks.
I personally would go with the GTX 590 SLI, however, you will be pleasantly satisfied with GTX 580 SLI, however its not future proof for a 120 HZ monitor.Edited by RagingCain - 4/23/11 at 8:10pm