Quake 4 doesn't show a huge deficit when looking at Quad FX performance vs. a single socket dual core AMD setup; there's a slight drop but nothing huge. Even though the latest version of the engine is multi-threaded, there's no real benefit above two cores. We will have to wait for the next-generation of titles before we'll start seeing real boosts in performance for quad core CPUs.

Oblivion performance is notably worse on Quad FX than with only a single socket AMD system due to the added memory latency. Now if you were running a 3dsmax render in the background, then the Quad FX system would be faster than its dual core counterpart.

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