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To: milo_morai who wrote (156228)1/18/2002 8:53:18 PM
From: wanna_bmw  Read Replies (1) | Respond to of 186894
 
Milo, Re: "And this setup is faster than a 533Mhz FSB

Intel Pentium 4/3000A MHz (~548 MHz QDR FSB)

P4 has always had plenty of Bandwidth. The Problem is with the CPU not the FSB."


Going back to apples vs oranges comparisons again? It's not the CPU, it's the memory bus. Those benchmarks are showing a front side bus capable of delivering ~4.4GB/s, while a single channel of DDR memory can only deliver 2.1GB/s. That's a bottleneck, and that's why I thought the benchmarks seemed low. Adding PC2700 support would help, but I think that Intel really needs to come out with a dual channel DDR chipset ASAP. Dual channel Rambus is simply not ever going to be a high volume memory standard for the Pentium 4, and other solutions from competing chipset manufacturers simply aren't going to sell as well as an Intel chipset.

Not that I'm particularly worried, though. Intel survived for a long time with the Pentium 4 on SDRAM, and now they'll just have to learn how to market the Pentium 4 with single channel DDR. The enthusiasts will buy the SiS and VIA chipsets that offer the highest bandwidth memory solution, and benchmarks will probably continue to use dual channel RDRAM. Keep in mind also that there is no word about the Athlon changing front side bus specifications this year, so it's not like they are going to scale any better.

Re: "As for Hammer FSB, It's not clear, but the HT paths and built in memory controller will produce allot of benefits."

I believe that Hammer will have 3.2GB/s of HT bandwidth. Because of the different pin count, comparing frequencies will no longer be applicable.

wbmw