MultiChrome graphics performance
We only had time to run the MultiChrome setup through 3DMark quickly, but the scores below should give us some indication of how S3's multi-GPU tech scales with the addition of a second card.
One of the Chrome S27 cards we used in testing
Sadly, the cards we were using for MultiChrome are not representative of the full performance capability of final Chrome S27 video cards; these had their memory clocks running below the full 700MHz speed that S3 anticipates for final, shipping products.
Even with the memory running at lower-than-expected speeds, these numbers are fairly impressive. When we tested a pair of GeForce 6600 GT cards early in the life of SLI, they achieved a 3DMark05 score of 5732
, only slightly higher than this MultiChrome config, and those cards were using an SLI bridge to pass data between them. MultiChrome would seem to have a very solid chance of at least keeping pace with a pair of GeForce 6600 cards in a bridge-free SLI config, if not beating 'em outright. We'll have to test final cards and drivers directly against the competition when the time comes.