Linked by David Adams on Thu 13th Oct 2011 17:33 UTC, submitted by jefro
Hardware, Embedded Systems According to (via popsci), the Cray Inc. XT5-HE supercomputer (Jaguar) is getting updated. The Department of Energy's Jaguar computer will be renamed Titan. This reported $97 million upgrade will be using AMD CPUs and NVIDIA Tesla GPUs and is claimed to "be at least twice as fast and three times as energy efficient as today's fastest supercomputer, which is located in Japan." Good news for gamers.
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Only twice as fast?
by Kebabbert on Fri 14th Oct 2011 07:11 UTC
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I think this is non impressive, as the fastest super computer today, uses SPARC cpus. An GPU is many times faster than a CPU. When moving computations from CPU to GPU, you typically speed up more than 10x, often 50x. So when Jaguar moves computations from cpu to GPU and only get 2x.... I am not impressed of an GPU solution that is only twice as fast as a cpu solution.

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