GTX 580 vs AMD 6990s Tags: Graphics Cards Gtx AMD Graphics Last response: March 17, 2011 8:54 AM in Graphics & Displays Share tkinz March 16, 2011 3:41:19 AM I am trying to select an ultimate graphics solution for a three monitor system, all of which are around 25 inches (if that helps at all) I want to know weather i should use 3 way SLI with GTX 580s, or if i should use 2 way Crossfire with AMD 6990s More about : gtx 580 amd 6990s Maziar a c 167 U Graphics card March 16, 2011 6:16:57 AM Neither 3-way SLI or quad crossfire scale as good as 2-way SLI/CF. So your best option is to get either 1 or 2 GTX 580's or 1 HD 6990. 2 GTX 580s>1 HD 6990> 1 GTX 580 megamanx00 a c 104 U Graphics card March 16, 2011 4:29:24 PM ^ a single 580 can't drive 3 monitors Anyway, it just depends on the game you want to play. Some games don't support 3-way SLI well, and others may not support quad crossfire well. Just look at this triple GPU scaling article http://www.tomshardware.com/reviews/crossfire-sli-3-way... Considering the work AMD has done with eyefinity though I'd say go with the quad 6990s. Either way you go though, such a system is going to be pretty loud. You may want to go with water cooling Related resources Altermatives to installing two 6990's ? - Forum AMD 6990's or NVIDIA 590's??? and which manufacturer? - Forum Crossfire HD 6990 vs 3-SLI GTX 580 3gb - Forum GTX 580 3-way SLI vs GTX 590 SLI - Forum GTX 580 2-way SLI vs GTX 570 3-way SLI - Forum Can't find your answer ? Ask ! Get the answer lmulder March 17, 2011 3:53:59 AM Did you read that article correctly? Only one game where 3way crossfire didn't scale very well... all the other 3way sli sucked and 3way xfire did good. Instead of 2x 6990s go 3way 6970s, the 6970 gpu is a little faster than one of the gpus on the 6990 (same as the 5870 vs 1 of the gpus on the 5970). lmulder March 17, 2011 3:54:41 AM Although to be honest I'm sure a regular SLI GTX 580 setup would be just fine. Anonymous a b U Graphics card March 17, 2011 8:54:46 AM Don't you want eyefinity? Can't find your answer ? Ask ! Publish Related resources: ForumGtx 580 3gb vs Gtx 580 3gb SLI Forum870a-G54 w/ 2 6990s ? ForumGtx 660 [non-ti] or Radeon HD 7850 ForumHIS 6850 VS GTX 275 GIGABYTE SUPER 1792 mb ForumAMD Overdrive Power Control ForumDual-GPU GeFore GTX 460 Video Card SLI ForumGtx 580 gtx 470 im sli ForumGTX 460 with 430 watt power supply... ForumRadeon HD 5770 or the Nvidia GTX 550 ForumGtx 460 cooling pad Forum[Solved] GTX 570 Problems?!? ForumCan't get PhysX to work! (GTX 560 Ti) More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !