Nvidia's new GeForce GTX 1080 video cards will only support two-way SLI, the company has told PC Perspective, backtracking from claims made when the card was first launched.
Initially, Nvidia's plans for creating SLI setups with its latest and greatest GeForce GTX 1080 video cards were a little peculiar. Two-way configurations were supported using a new high-speed bridge to join the two cards together. Three- and four-way configurations were promised, too, but with a twist: first, these would need to use older, slower SLI bridges, and, second, system owners would have to generate a special "enthusiast key" to unlock access to three- and four-way SLI. Without this key, the system would stick to two-way.
The plan is now simpler but, for those rich individuals hoping to build the very fastest systems imaginable, somewhat worse. Configurations with two cards working in SLI using the new bridges will continue to be supported, but the company no longer plans to extend this to three- and four-way configurations at all, and the "enthusiast key" system is being dumped.
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