1) ASUS GTX560 Ti overclocked SLI (dual)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121425&cm_re=asus_560_ti-_-14-121-425-_-Product
Total Price: $510
2) XFX HD6950 CF (dual)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150527&cm_re=6950_xfx-_-14-150-527-_-Product
Total Price: $540
3) MSI GTX580 overclocked (single)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127579&cm_re=msi_580-_-14-127-579-_-Product
Price: $526 - However, I am planning to buy another one of these for dual sli in 10 months or so when the price drops to around $300-350. I think this might be possible since GTX480 which had a launch price of $500 in early 2010 is now around $300-350. So it will run around $850-900 total if I purchase another one for SLI.
Which of these three options should I choose? I only use one monitor (1920x1080) and my setup will have i7 970 CPU and 12 gb RAM. I need a GPU setup that will allow me to play games at 1920x1080 resolution and highest setting with 30+ fps for the next few years or so.
Also, what are the differences between AMD and Nvidia GPUs as far as performance, reliability, heating issues, drivers, and longevity?
** By the way, I meant to write "three options", not "four" in the title.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121425&cm_re=asus_560_ti-_-14-121-425-_-Product
Total Price: $510
2) XFX HD6950 CF (dual)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150527&cm_re=6950_xfx-_-14-150-527-_-Product
Total Price: $540
3) MSI GTX580 overclocked (single)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127579&cm_re=msi_580-_-14-127-579-_-Product
Price: $526 - However, I am planning to buy another one of these for dual sli in 10 months or so when the price drops to around $300-350. I think this might be possible since GTX480 which had a launch price of $500 in early 2010 is now around $300-350. So it will run around $850-900 total if I purchase another one for SLI.
Which of these three options should I choose? I only use one monitor (1920x1080) and my setup will have i7 970 CPU and 12 gb RAM. I need a GPU setup that will allow me to play games at 1920x1080 resolution and highest setting with 30+ fps for the next few years or so.
Also, what are the differences between AMD and Nvidia GPUs as far as performance, reliability, heating issues, drivers, and longevity?
** By the way, I meant to write "three options", not "four" in the title.