PC2700 with a 3ghz P4...

[arcas]

Got a machine upgrade at the office. IBM Intellistation with a 3ghz P4 but with PC2700 RAM. I'm curious how much of a real-world performance hit the PC2700 will have versus PC3200.

It's replacing a P2-400 machine so even with PC2700 it's a much faster machine and I have no complaints but if this memory is a serious bottleneck, I might consider buying replacement RAM myself (zero chance of getting work to pay for new RAM).

 

[myocardia]

Well, whether it will even be a bottleneck at all will depend on the processor. It's most likely a 200 Mhz fsb processor, though. If it is, it won't be all that much of a bottleneck. Like maybe ~5% performance loss, max. I wouldn't worry about it, especially since this system will be replacing a 400 Mhz PII.

 

[Bateluer]

Is this P4 a 3.06Ghz P4 or a 3Ghz P4C? If its the C rev, its an 800Mhz FSB. If its the 3.06Ghz revision, its a 533Mhz FSB. 200x4 vs 133x4. PC2700 will be a bottleneck, but it'll be substantially faster than a P2-400 for certain.

I've got a P4 2.53Ghz processor here, running with a single channel PC2100 DDR 512MB stick. Compared to the Willamette-128 Celeron 2.4Ghz sitting next to it running dual channel PC3200, its pretty sluggish. Kinda funny watching the celeron processor churn out more S@H WUs than the P4.