Originally Posted by ChrisRay
I have recieved some questions about NFS: Underground 2 in regards to SLI.
By default NFS Underground: 2 will have problems with SLI in either AFR or SFR mode. However there are work arounds. Currently you have to disable Light Trails/Motion Blue for you to get SLI working well in NFS:Underground 2. Otherwise you will see no performance boost. AFR works fine in underground 2 however once you disable those features.
I think a lot of us have those features disabled anyway because 1) they interfere with FSAA and/or 2) they just look stupid.
But thanks for the heads up, good to know that it's possible to get it to work.