AMD's mobile long-forecast
AMD's 45nm plans for the notebook unveiled
AMD's Technology Analyst
Day came and went, with announcements about K8L architecture details,
AMD's 4x4 enthusiast
platform, fab
roadmap and the company's Torrenza platform.
However, the company did leave a few other breadcrumbs that DailyTech did not
cover in entirety yet.
In particular, AMD's weakest point right now is undoubtably its mobile
technology. While the company has been making great strides in the last
few years with the Turion and Turion X2 processors,
the notebook industry has almost unanimously supported Pentium M and Core
Duo. AMD will announce its 65nm SOI Revision G Tyler
and Sherman
processors next year, but for 2007 AMD anticipates another new
architecture.
The die diagram (right) claims the new mobile processor generation uses
HyperTransport-3, which right now has only been reserved for AMD's K8L
architecture. However, the next generation mobile dual-core CPU shows
very little resemblance to the K8L core diagram
posted yesterday or the single core Revision G Orleans
CPU die shot posted a few days ago. However, like K8L, the new mobile
core features individual power planes for each core and the Northbridge,
meaning the ACPI layer can make a CPU core come to a full halt when not in
use.
Furthermore, AMD is working on incorporating some level of power management on
the individual HyperTransport links. HyperTransport links
already allow for an "un-ganging mode," meaning a single 16-bit
link can be split into two 8-bit links dynamically. It would seem logical
to assume that during low I/O situations a single 8-bit link would be ample,
meaning the other 8-bit link could be shut down when not needed to save power.
The emphasis for AMD's 2007/2008 mobile CPU is clearly on power consumption. The CPU
will come with low and ultra low voltage models, similar to AMD's Energy Efficient AM2
processors and Intel's mobile offerings. AMD's slides anticipate 45nm
DDR3 processors for 2008, although the company has not released any other details
for that generation yet.
"Nowadays you can buy a CPU cheaper than the CPU fan." -- Unnamed AMD executive
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