In Soviet Russia, paper launches you!

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in soviet russia people learn to shutup the hell up

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"Although we're quite convinced that an on-die memory controller would result in the best performance per transistor expended on a new architecture, we're doubtful that Intel would consider one. We may have to wait until stacked die and wafer technology before we see any sort of serious reduction in memory latency through techniques other than more caches and more cores."

Well noted, but a little expansion: the latency drop when going to a stacked die/wafer technology comes from 2 things.
1. Proximity to core
2. Intel will have to provide an on-die memory controller... to have an external controller and stacked wafer ram would be poor engineering.

So, expect to see these things together.

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is there a more detailed reason as to WHY intel does not go with the on die memory controller?
has AMD patented it and are unwilling to license it?

hasnt the sucess of the amd64 physically shown that the memory controller is highly effective in improving performance?

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#4

Na then Intel cant charge and addtional $15 per northbridge chip.

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Well, Intel said they are not supporting integrated memory controller because you have to change the board and the memory and the CPU every time new RAM standards are out. Looking at desktops, that it make sense not to have memory controllers, but for servers they have a solution. Maybe because its more flexible to have a seperate memory controller? I mean you are pretty limited when the memory controller is integrated, in terms of clock speed scaling, increased complexity and memory standards. It makes sense for servers though and Intel recently announced the Xeon MPs and the Itaniums would have common sockets(same sockets) and have integrated memory controller.


Anyways this was interesting:
"The answer appears to be somewhere in between Pentium M and Prescott, realistically being much closer to Willamette's 20 stage integer pipeline than Prescott's 31 stage pipe, for strictly power reasons."

See, like I predicted, its best to consume Pentium 4 Northwood and Pentium M together.

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#6 what you said doesnt make sense from a performance perspective.... how long does it take for new ram standards to come out? there has been sdram (pc66,100,133) ddr ram (pc2100,2700,3200) and now ddr2 (533) oh, and rambus 600,800,1000
that's 10 ram standards for pcs as far back as the pentium 200.... the memory controller on the AMD64 has already been updated from HTT800mhz to HTT1000mhz.... and can be continually revised and just introduced on newer steppings of the same cpu's.... eg. amd's forthcoming "e" spec with sse3, 4x ddr3200 support and other stuff for free

and #5 -- LOL -- so true -- AMD mobo's are so cheap, its not funny (not including the nforce4, but thats another issue)
maybe intel could just charge the extra $15 on their cpu's :P


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You know, I saw enough flashy graphics in three days to make my head spin, and there were enough pictures of the future to make me think this was a World's Fair. Though what can one expect out of an event like this?

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#7

Sure, as if Intels CPU's are not expensive enough, now you want to all another $15 "Integration on die memory controller" tax


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#6, intel's reasoning doesn't make sense. they seem make people change mobos, not because of differing ram standards, but because they change cpu socket so damn often.

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