Intel Plans to Speed-Up Desktop Quad-Core Chips’ Bus
Posted by Emil Protalinski on 14 April 2007 - 17:43 · 6 comments & 2587 views
News source: Xbit Laboratories
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(2 replies)
#2 Posted by Budious on 15 Apr 2007 - 00:41
- I am skeptical about how well the threading of quad core scales when running multiple high resource applications. While the cpu sports quad cores it is using the same memory bus architecture. Your upping the computational power without providing a larger data pipe thus creating a performance bottleneck. The only benchmarks I have seen use a single multi-thread application to compare performance of dual core vs. quad core and there are performance increases but saturate the bus with traffic from four intensive applications running one on each core and compare the performance of two of the applications operating on a dual core processor with similar memory bandwidth and compare the results.
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#2.1 Posted by beniza on 15 Apr 2007 - 02:46
- Quote - (Budious said @ #2)I am skeptical about how well the threading of quad core scales when running multiple high resource applications. While the cpu sports quad cores it is using the same memory bus architecture. Your upping the computational power without providing a larger data pipe thus creating a performance bottleneck. The only benchmarks I have seen use a single multi-thread application to compare performance of dual core vs. quad core and there are performance increases but saturate the bus with traffic from four intensive applications running one on each core and compare the performance of two of the applications operating on a dual core processor with similar memory bandwidth and compare the results.
so ur saying that if this processor has more pipelines the better the performance?? cause rite now all i notice is just the FSB increase and a little bit on the clock. So its almost like the video cards (more pipeline the smoother graphics transfer from GPU to its memory). hmmmm -
#2.2 Posted by maudit on 15 Apr 2007 - 05:10
- Quote - (Budious said @ #2)I am skeptical about how well the threading of quad core scales when running multiple high resource applications. While the cpu sports quad cores it is using the same memory bus architecture. Your upping the computational power without providing a larger data pipe thus creating a performance bottleneck. The only benchmarks I have seen use a single multi-thread application to compare performance of dual core vs. quad core and there are performance increases but saturate the bus with traffic from four intensive applications running one on each core and compare the performance of two of the applications operating on a dual core processor with similar memory bandwidth and compare the results.
I think there was some sort of benckmark regarding AMDS 4x4, due to it being 2 processors, ergo having 2 memory controllers or something like ( not quite sure), in general performance intel Qxxx took the crown to AMDs solution, but when real multitasking came in, AMD 4x4 got a slight edge.... ( 1 out of 9 tests or something like that)... Can't remember the link, just google for AMD 4x4 benchmarks and it must be in the first page
