Linked by Thom Holwerda on Thu 26th Aug 2010 23:24 UTC
IBM At the Hot Chips 2010 conference, IBM announced their upcoming z196 CPU, which is really, really fast. How fast? Fastest chip in the world fast. Intended for Z-series mainframe computers, the Z196 has a clock speed of 5.2GHz. Measuring just 512 square millimeters, the Z196 is fabricated on 45nm PD SOI technology, and on its surface contains almost one and a half billion transistors. My... Processor is bigger than yours.
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Not really, the whole dataset does not have to fit in cache.

Technically the slowest element in most computing systems are either the disk or the network interfaces.

Very efficient branch prediction subsystems, and nicely tuned caches can boost the utilization of the processor significantly, without having to "fit the whole dataset in cache." Things like simultaneous multithreading also help improve resource utilization.

Believe it or not, IBM has excellent architectural teams... so the system will be fairly tuned to keep the processor "utilized."

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