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CPUMark - Xeon X5672 compared to X5647 - why so slow?
Have been comparing CPUmark results from this website for the Westmere EP Xeon processors and noticed the X5672 and X5667 95 watt parts show markedly lower multithreaded performance in comparison to the 130 watt X5647 or X5677 parts.
X5672 @ 3.20GHz (3.6 Turbo) = 5114
X5647 @ 2.93GHz (3.2 Turbo) = 6042
From the intel ark, both processors specifications appear near identical bar the operating frequency, wattage and QPI bandwidth (X5672 has the higher operating frequency and higher turbo across single and multiple cores, lower TDP rating and higher QPI/memory bandwidth).
Intels ark lists both parts as four core, eight thread devices, but the Passmark website lists the X5647 as having "No of Cores: 4 (2 logical cores per physical)" and the X5672 "No of Cores: 4".
Whats the difference between them, why does the X5647 score so much higher? No hyperthreading on the X5672? Intel site seems to contradict this.
Someone please tell me what I'm missing.
Cheers...
http://ark.intel.com/products/52579
http://ark.intel.com/products/52580
X5672 @ 3.20GHz (3.6 Turbo) = 5114
X5647 @ 2.93GHz (3.2 Turbo) = 6042
From the intel ark, both processors specifications appear near identical bar the operating frequency, wattage and QPI bandwidth (X5672 has the higher operating frequency and higher turbo across single and multiple cores, lower TDP rating and higher QPI/memory bandwidth).
Intels ark lists both parts as four core, eight thread devices, but the Passmark website lists the X5647 as having "No of Cores: 4 (2 logical cores per physical)" and the X5672 "No of Cores: 4".
Whats the difference between them, why does the X5647 score so much higher? No hyperthreading on the X5672? Intel site seems to contradict this.
Someone please tell me what I'm missing.
Cheers...
http://ark.intel.com/products/52579
http://ark.intel.com/products/52580
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