Scaling from one GPU to two doesn't necessarily result in doubling the performance as we've seen in countless SLI and Crossfire articles. But what happens when you add a third GPU to the mix? That is what we're going to find out today by putting three 9800GTX SLI cards together.

If you remember, we weren't too impressed by the 9800GTX as a single card but it won us over in SLI mode. With one more 9800GTX, we'll find out how the current crop of games scale- and this is exactly the scope of this article. We're not comparing the 9800GTX Triple SLI to other competing products- instead, we have one, two and three 9800GTX cards compared with each other to see the scaling.

The testbed used for this article is made up of an Intel QX9770 CPU, the ASUS 790 Ultra chipset based ASUS Striker II Extreme motherboard and OCZ DDR3 modules. The PSU used is a Silverstone 1000W. The display we have is a 24" Benq LCD capable of supporting 1920x1200 resolution, which could certainly be a limiting factor as you would really see gains from such a setup at extremely high resolutions.