the EVGA gtx 590 Classified be extremely powerful with sharp crisp and smooth rendering . this card generate great frame rate , even at 2560x1600 resolution . I be very happy with the initial purchase and elate with the second card . the first card install go without a hitch . this encourage I to try a Quad SLI configuration and I purchase a second card . strongly recommend run the EVGA Precision application when in Quad SLI . set the card to a higher fan speed for the air cool version . I would recommend the water cool Hydro Copper version and install a water cooling system now give the Quad SLI system I build . the card become power crazy and the longer you run they , the hotter they get . in a single card system the fan noise be hardly noticeable at all and considerable quieter than previous video card I have have . the system run great on the Gigabyte EX-58 Extreme install in a Cool Master HAF-X case . run two card in Quad SLI mode have its down side . Make sure you have a high watt power supply and battery up , I have a 1200w silent gold pro 80 + gold but only a 1500va up . there be time the UPS hit 900 watt of load and trip the shutdown procedure -lrb- this be after more than 6 hour of continuous use at high resolution and high graphic load , not over clocked -rrb- . read the faq on the support site when the blue screen show up . there be a potential conflict with hd audio use the same resource . the support site walk you through the step and you be back up and run in no time . the tech support report system reply in a few hour with the pointer to the support faq . great card . for dual use , consider switch to water cool version .