Intel Life After "Penryn"
March 28, 2007 10:33 AM
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The bell tolls for "Nehalem" when Intel's clock strikes next in 2008
More details of Intel's next-generation architecture unveiled
Intel's "tick tock" development cycle continues to chime with the
processor architecture scheduled for production next year. Intel Senior Vice President Pat Gelsinger detailed the advanced features on the next-generation to
In the second half of this year, Intel will release its first
. While nearly identical architecturally to the Core 2 Duo processors released last year,
's 45nm node allows Intel to put more L2 cache onboard; the company already announced
-based processors will utilize up to 12MB of L2 cache on quad-core designs.
Intel's 45nm node utilizes metal transistor gates and high-k dielectrics. The departure from silicon-based transistors
translates to a 5-fold reduction in source-drain leakage and a 10-fold reduction in dielectric leakage. According to Intel guidance, this means existing processors could run 20% faster just by switching to metal gate and high-k transistors. Gelsinger claims mature
processors will operate in excess of 3 GHz per core, with 1600 MHz front-side busses on server platforms.
After the 45nm shrink has matured, Intel will then incorporate architectural changes into its processor family, currently dubbed
is still a 4-issue architecture similar to Core, but new advances in management and scalability give
its new micro architecture designation.
Earlier this year Intel roadmaps stated Hyper-Threading would appear on some
processors. Shortly after,
Intel retracted the roadmap
, stating that simultaneous multi-threading will not reappear until 2008. This was made evident today when Intel unveiled its next-generation threading plans for
-family processors have eight cores. Coupled with 2-way threading, these processors appear as 16 logical CPUs. This threading is dynamic: Threads can be powered on and off depending on the application needs.
Dynamic threading isn't the only on-the-fly operation for
. Almost everything about
can be dynamically managed: Power, threads, bus, cache and cores. This management is primarily a power-saving feature, but also allows for saleable designs as well.
The bulk of these changes are possible due to
's on-board memory controller. AMD realized the advantages of integrated memory controllers (IMCs) with the introduction of its Opteron series processors four years ago. Intel has long toyed with with IMCs on some processors, and will even
system-on-a-chip later this year
with an integrated memory controller.
Intel's dynamic bus, the Common System Interface (CSI), is clearly a focal point for the
architecture. With many respects, CSI is very similar to HyperTransport: Variable, serial interconnects for processor-to-processor communication. CSI will not only make its debut on
, but design engineers have also confirmed to
that CSI will have
a large presence on next-generation Itanium platforms as well
Intel leaves a single teaser in its
design guidance: "High performance integrated graphics engine for client." Speaking on background, Intel insiders stated "The majority of the Intel Northbridge is already on the
die, so adding the final logic to include graphics is essentially [trivial] with the correct bus support." Intel's
renewed interest in graphics processing
came just weeks after AMD made similiar announcements, which
AMD has codenamed
In addition, Intel will also expand the SSE4 instruction set. Other architectural tweaks include shared multi-level cache. AMD's upcoming
processors share L3 cache between cores; Intel's last
processors shared L3 cache, but no current Core processor utilizes such functionality.
Gelsinger emphasizes that
is on track for production in 2008.
Intel's "tick tock" strategy doesn't end at the 45nm node. In 2009 Intel will optically shrink
process from 45nm to 32nm. In a sense, it's the same move Intel is currently undertaking with the transition from
's 32nm shrink is dubbed
. The 32nm architecture that will succeed
This article is over a month old, voting and posting comments is disabled
RE: AMD is Effed
Ralph The Magician
Ralph The Magician
3/29/2007 2:16:03 PM
AMD is about 6-9 months behind in process. If they really want to get back in the game, at least in terms of profits, they are going to have to eitehr SKIP a process or Intel is going to have to get stuck on a process long enough so that AMD can catch up. The latter is more likely, because that's something that happens fairly often in the industry, but Intel is really working to keep their lead.
RE: AMD is Effed
Ralph The Magician
Ralph The Magician
3/29/2007 2:25:43 PM
And IMO, AMD needs to focus away from high-performance consumer CPUs. They should focus more on Opteron which STILL scales better than Xeon. That's where the real strength of an integrated memory controller lies.
With their recent aquisition of ATI they can also create a nice integreated budget platform and CPU.
Truth is, AMD has never been too good at the high performance desktop/workstation game. Even when they would take the CPU performance crown they still lacked the chipsets and a standardized, modern, in-house platform. Kind of a shame that now that they FINALLY have the ability to do that, they are the furthest behind in the performance game then they have probably ever been. :-\
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