SUN’s Ultrasparc T1 is little less than a revolution in the server world. How else would you describe a 72 W, 1.2 GHz chip that is almost 3 times (in SpecWeb2005) as fast as four Xeon cores at 2.8 GHz, which consume up to 300 W? Of course, there are a few snakes in the grass too, as T1 does not like every kind of server workload. In this article, we explore the architecture and the principles behind it, and how it performs.
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