whyso :
Repeating the word "nonsense" all the day is not going to change facts. From a link given before:
In a variety of computing benchmarks, the Opteron architecture has demonstrated better multi-processor scaling than the Intel Xeon. This is primarily because adding an additional Opteron processor increases memory bandwidth, while that is not always the case for Xeon systems, and the fact that the Opterons use a switched fabric, rather than a shared bus. In particular, the Opteron's integrated memory controller allows the CPU to access local RAM very quickly. In contrast, multiprocessor Xeon system CPUs share only two common buses for both processor-processor and processor-memory communication. As the number of CPUs increases in a typical Xeon system, contention for the shared bus causes computing efficiency to drop.
I have not given you one benchmark showing 5%. I have given you benchmarks showing 6-10%. I did because you claimed no advantage. Now you change your argument to no advantage on the average, but then two comments: I don't care about the average if I am playing one of those benchmarked games and you don't offer anything to support your average figure.
The thread I posted is from 27 February 2013. Yes computers advance fast but not that fast. What they said about HT continue being valid today.
About power consumption I recommend you again the same: read what was said.
Congrats for wikipedia skills. Thumbs down for reading comprehension.
Full Quote
In a variety of computing benchmarks, the Opteron architecture has demonstrated better multi-processor scaling than the Intel Xeon.[1] This is primarily because adding an additional Opteron processor increases memory bandwidth, while that is not always the case for Xeon systems, and the fact that the Opterons use a switched fabric, rather than a shared bus. In particular, the Opteron's integrated memory controller allows the CPU to access local RAM very quickly. In contrast, multiprocessor Xeon system CPUs share only two common buses for both processor-processor and processor-memory communication. As the number of CPUs increases in a typical Xeon system, contention for the shared bus causes computing efficiency to drop. Intel is migrating to a memory architecture similar to the Opteron's for the Intel Core i7 family of processors and their Xeon derivatives.
Which happened several years ago.
And I have given you benchmarks showing 0-2%. (Note this is bulldozer) (Your links are messed up)
http://www.pugetsystems.com/labs/articles/Breaking-the-Hype-of-High-Frequency-RAM-142/page3
A link to a short discussion on this same forum about this same point is hardly conclusive.
Anyway here is another article from toms
Between the i3 and the pentium G2020 (both ivy). Clockspeed difference is 2.9 ghz vs 3.3 ghz. Perfomance difference is 159-121= 38/121=31% better for the i3. Clockspeed difference is only 3.3/2.9=14% better for the i3 so the deficit (31-14=17%) is coming from HT.
Modern Opteron 6200 models have better scaling than modern Xeon E7.
Your benchmarks are from a computer builder who sell computers with slow ram. In a part of the their site they claim that they don't support AMD stock speeds because (sic) 1866 RAM is not reliable. What? The benchmarks I provided are from people not involved in selling computers or stuff as that.
Even intel chips, which are rather insensible to ram speed give about a 2% increase in average performance when going from 1600 to 2133. For AMD this is larger.
Percentages are relative values and would not be added. The difference at same clock is not 17% but less than 15%. Both chips differentiate on HT, AVX support, and different memory speeds.
HT is also chip dependant. An 3770k HT provides less than a 9% performance increase over a 3570k on crysis 3, which is heavily threaded, whereas the increase is larger for i3. And HT can affect negatively performance in several applications.