Intel Plans to Speed-Up Desktop Quad-Core Chips' Bus

Intel Corporation may be planning to once again speed-up its quad-core offering next quarter from the current 1066MHz processor system bus. Just like with its Core 2 Duo microprocessors, Intel will release a chip with four processing engines featuring a 1333MHz PSB. In Q3 2007, the $999 Intel Core 2 Extreme QX6850 microprocessor is projected to use the code-named Clovertown design, two pieces of silicon on a single slice of substrate, operate at 3.0GHz and use a 1333MHz PSB. In the third quarter of the year the world's largest maker of x86 microprocessors will also reduce pricing of its currently shipping Core 2 Quad Q6600 chip to $266 and will introduce the Core 2 Quad Q6700 at a $530 price-point.

News source: Xbit Laboratories

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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.

Budious said,
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

Budious said,
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