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Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: Elmer who wrote (56736)	9/30/2001 1:14:59 PM
From: hmaly	Read Replies (2) \| Respond to of 275872

Elmer Re..I'm not sure but I think I've just been insulted<g><<<<<<< Thanks, in the spirit of the times I try to specialize in the stealth insult, as opposed to the terrorist, bombastic insult. Northwood will be a significant increase too. <<<<<<<< Are you saying Northwood will not only increase speed, but also IPC. I thought that would be happening with JT enabled P4s. Perhaps a more important point is that it's getting harder to squeeze more performance out of these designs. Most of the rabbits have already been pulled out of that hat.<< Yes, and I think because of AMD's new ratings, as it has been pointed out by others, that AMD rather than challenge INtel on mhz, will challenge on IPC; much as IBM and others challenged and finally beat Cray on speed. Eventually increasing speed cost far more than increasing parallelism.

To: Elmer who wrote (56736)	9/30/2001 1:25:31 PM
From: fyodor_	Read Replies (1) \| Respond to of 275872

Elmer: How big was the increase from K6 to Athlon? Huge. Single precision floating point performance close to doubled, double precision floating point performance quadrupled. All this without the need for recompiles ;-) Despite your choice of example, I do agree with you. Much of the "low-hanging fruit" has been picked and actually feeding the processor with instructions and data is a major bottleneck today. (I'm not suggesting that there aren't a lot of significant improvements to be made on the processor front!) -fyo

To: Elmer who wrote (56736)	9/30/2001 2:35:26 PM
From: Dan3	Read Replies (1) \| Respond to of 275872

Re: I can remember when the original Pentium came out there was little difference between it and the 100MHz 486 available at the time. Good example. What you're saying is that a Pentium was as fast as a 486 clocked 50% higher. Now, for the first time in the history of the X86 line, we see a new core in which there is a collapse in IPC instead of an increase. This is clearly demonstrated by the PIII that has the same performance as a P4 clocked 50% (P4 with RDRAM or DDR) to 100% higher (P4 with SDRAM).