Summary: I installed this video card in a new PC I built to be used with iRacing driving simulation software. I compared this card to the HD 5870. This 5970 is basically a two GPU version of the HD 5870, but with the two GPU chips throttled down. Unfortunately the iRacing frame rates were about 20% slower with the 5970 then they with the 5870. I think iRacing does not take advantage of the 2nd GPU, but I'm not sure.