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To: Gopher Broke who wrote (78295)4/24/2002 7:28:30 PM
From: wanna_bmwRead Replies (2) | Respond to of 275872
 
Gopher, Re: "If you look at it in the context of the P4 managing a -30% improvement over P3"

Yeah, but Northwood seems to have recovered 5-10% of that. I would expect the next generation (Prescott) to give another 10% or more, even without the benefit of enhanced Hyperthreading. By the time Hammer ramps, I doubt it will have a 75% IPC advantage over the current Pentium at the time (and besides, 25% * 30% = 62.5% improvement, not 75%).

The question is whether Hammer really will get a significant improvement on frequency. Jerry only promising 2GHz for launch is not very convincing.

wbmw



To: Gopher Broke who wrote (78295)4/24/2002 8:30:50 PM
From: PetzRead Replies (1) | Respond to of 275872
 
A 25% improvement in IPC is worth a lot more than 25% improvement in clock speed. A 2.4 GHz P4 only runs 10% faster than a 2 GHz P4. Therefore a 25% boost in IPC is worth about 50% in clock speed.

Petz


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