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post #11 of 12 (permalink) Old 06-13-2014, 07:27 PM
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neon is right about the # of cores and the work they do; unless you have eg. multi-threaded applications or server apps with lots of background processes, the 4 cores might be mostly unused, and the faster clocked dual core would do fine.

On the other hand...
The water cooled Power Macintosh G5 "Quad Core" (2.5) was one of the first and last Power Macintosh G5 models to use dual core PowerPC 970MP (G5) processors, which have two independent processor "cores" on a single silicon chip.

The Power Macintosh G5 "Quad Core" (2.5) is powered by two "dual core" 2.5 GHz PowerPC 970MP (G5) processors with four optimized AltiVec "Velocity Engine" vector processing units (one per core), eight double-precision FPUs (two per core), 1 MB of on-chip level 2 cache on each core, and dual bidirectional 1.25 GHz frontside system buses (one for each processor).

This was in 2005. Macs didn't use Xeon (which was intel, G5 was PPC) until 2006 (dual 5100 series) and xeon quad core in 2009 (iThink).
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post #12 of 12 (permalink) Old 06-13-2014, 08:14 PM Thread Starter
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dennyrex: No rest for my computers, no matter what they are. All eight cores are entertained 24/7. Aside from BOINC processing (utilizes all available, including GPU if permitted by user). Other tasks which can take nearly 24 hours (no lie) are finished in less than an hour on a workhorse. My last Xeon based computer (dual 2 core at 3.4 GHz) makes my current entry level HP seem like an irritation for some of the most common tasks.

Not to worry. I've had fast, and I've had ordinary. I prefer fast, and put all available cores to work.

These servers have 1.333 GHz bus speed. I admit, I'm probably not enough of a geek to truly appreciate bus speed, LOL. But, apparently that's pretty zippy. I gather it is a measure of how fast the CPU communicates with the rest of the system, RAM & etc. Is that correct?

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