Agree (partially).
The Pentium 4 (long pipeline) needed fairly high memory performance to keep it well fed, stop the pipeline stalling (from memory), etc (...)
The problem is not only between a 'wider' processor (i.e., less pipeline stages & more IPC; less MHz) and a 'narrower' processor' (i.e., more pipeline stages & less IPC; more MHz) but also, due to the so-called "large cache vs higher latency syndrome": Larger L2 caches are fine (depending upon its design implementation...) and allow for less [slower] main memory requests but, as a side effect, they carry a larger latency burden as well (not to mention the also 'wider' GPRs.).
Another issue which limits the [conventional] FSB, is the increase in [ACTUAL] CPU features (such as 64-bit extensions, virtualization, power-saving improvements, etc...), which must be supported by the OS, making it 'code-heavier', memory-hungry and stressing - even more - the FSB.
If one's to put aside, for the time being, the not-ready-to-market top technologies/implementations (like Z-RAM, MRAM, CSI, CNT, etc...), the >10 years old GTL+ bus (aka, FSB) is and will be - as long as it lasts & as far as i'm aware of - the [Intel] Achiles heel, no matter how 'pumped' it will be...
As for marketing-related operations, it's easy to point out one of the most elementary tactics of 'customer endearment': wave with the possibility first and sell what you've got, now!
Well, i don't pretend to give a lesson on computing basics (to no-one!), but i feel compelled to give some explanation to some of you, not aquainted with some of the terms i've used, here:
- IPC: Instructions Per Cycle;
- GPRs: General Purpose Registers;
- GTL+: Gunning Transceiver Logic Plus;
- CNT: Carbon NanoTubes (see THG article on the subject).
Other terms/acronyms are easy to search for.
Here's where i agree:
Their [Intel] new CPUs will still scale 'fairly well' for 1-2 years.
, if you take the "fairly well" out of the equation.
Hope you all take this thread as it's intended to be, my opinion, and feel free to correct me, if needed be.
Ah! Just occurred me, while perusing this site
http://www.livescience.com/history/ap_051215_mona_lisa.html, about Leonardo da Vinci's Mona Lisa:
The result showed the painting's famous subject was 83 percent happy, 9 percent disgusted, 6 percent fearful and 2 percent angry. She was less than 1 percent neutral, and not at all surprised.
Wouldn't it be fun to start a thread on "Build your own TH-CPU", based on the University of Amsterdam analysis?
I already have a code-name for it: "Mona Lisa"! What about it?!
Cheers!