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PCIe Scaling: Call of Duty: Modern Warfare 2

PCI Express And SLI Scaling: How Many Lanes Do You Need?
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Call of Duty plays so fast on modern hardware that it’s difficult to call any combination a handicap, yet the performance difference is there, even if it doesn’t make the game unplayable.

The GeForce GTX 480 gives up nearly half of its performance in the worst-case scenario, which occurs at low resolutions and four-lane transfers. That difference falls to around 1/3 at higher resolutions, and x8 results are almost perfectly centered in all three graphs.

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