No, it was theoretically specified at 2 TFLOPS, while Nvidia's GTX 285 could manage 708 GFLOPS. That's still impressive, but not > 10x.Larrabee (2009)
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This FPU was theoretically specified at over 10 times more throughput than comparable Nvidia GPUs from the same time period.
Perhaps you meant to say "one of the world's faster computers, today"? According to top500.org, Sunway TaihuLight is #1, displacing Tianhe-2 (MilkyWay-2) to #2.Xeon Phi (2012)
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As a result of the high compute performance relative to power consumption, the Xeon Phi 31S1P was used in the construction of the Tianhe-2 supercomputer in 2013, which persists as the world's faster computer today.