The Multi-GPU Conundrum

Picking out a graphics card today is more difficult than ever, given the sheer amount of choices available. It goes beyond the scope of simply choosing AMD or NVIDIA, since multi-GPU solutions change everything. In some regards, AMD’s solutions outperform NVIDIA’s, and vice-versa. The folks at X-bit labs have taken this predicament to heart and figured the best way to find a solution was to test out all scenarios and see what came out on top.

Not surprisingly, even with all of their testing, the answer is still not clear. In the end, there are many aspects that come into play with a new purchase. High-end cards that contain a single GPU can outperform a 4-GPU setup of mid-range cards depending on the game, but in other ways, it could hold performance back as well, since some games thrive on as much GPU power as it can get.

Their results do reveal something interesting though. The NVIDIA 9800GX2 in an SLI configuration didn’t outperform Quad CrossfireX-enabled HD 3870’s in the majority of games, especially at higher resolutions. If you want to go with the solution with a demanding lead, it looks to be AMD’s.

But, I think my solution is better. Go out and build four different computers with each configuration, that way you will never have to worry about suffering with lackluster performance! See? It’s easy!

So what can a gaming enthusiast expect from modern multi-GPU platforms offered by ATI and Nvidia? Unfortunately, it is much easier to say what he or she shouldn’t expect. And you shouldn’t expect stable and flawless operation at least with the currently available drivers.

Source: X-bit labs