DDRII效能不如DDR

P兔毛毛
2004年02月25日 19:23
0

根据俄罗斯网站对i925p主机板工程样品测试，他们发目前DDR-II 400效能低于普通的DDR400内存。这种情况原因归咎为DDR-II内存较高的Timing时序，普通DDR400的Timing时序是2-2-2，而DDR-II 400标准时序是4-4-4。目前800MHz FSB Pentium4系统总线带宽是6.4GB/s，如果在i925、i915芯片组上搭配双通道DDR-II 533运行，那么系统内存带宽高达8.4GB/s，对比一下，Athlon XP处理器系统总线带宽是3.2GB/s，而nForce2芯片组双通道DDR400内存可以提供6.4GB/s的内存带宽。因此，在Pentium4处理器和芯片组不提升FSB速度，DDR-II内存价格继续走高的情况下，Intel i9xx芯片组搭配DDR-II内存的战略前景不明。

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