AMD's 45nm Opterons Scheduled for 2008
February 5, 2007 11:50 AM
comment(s) - last by
AMD's internal guidance suggests the company isn't very far from 45nm at all
Late last year, AMD executives alluded to a 45nm successor to the
Senior Vice President, Marty Seyer,
"bring further performance enhancements, as well as cache efficiency."
is apparently more than just a cache-bump. AMD's documentation explicitly claims
will be the company's first 45nm processor. However, with a die shrink additional cache is one of the immediate architecture options as the smaller node allows for more transistors to fit on the chip die.
features 6MB of L3 cache.
, the 65nm quad-core next-generation Opteron from AMD, is expected to launch this summer with 2MB of L3 cache. L3 cache on the K10 architecture is shared over all four cores, yet each core has an independent L2 cache as well. More details on how this new cache operation works was
detailed in June 2006 on
All other features found on
will also make an appearance on
: AMD-Virtualization (previously codenamed
), RDDR2, and HyperTransport 3.0. Like
will also tentatively ship with dual and quad-core variants. In 2008 AMD will tennatively add Secure Initialization to all its AMD-V platforms, including
will also use the Socket 1207 interface, suggesting existing motherboards will have the opportunity to upgrade to Shanghai processors -- AMD processors are typically designed to work with existing motherboards on same-socket interfaces with simple BIOS updates.
AMD and IBM recently announced
intentions to pursue the 45nm node
with high-k metal gate technology. Intel disclosed
similar process technology information
one day prior to the IBM-AMD announcement. Late last year IBM detailed its plans for
utilizing immersion lithography for its 45nm test shuttles
-- Intel uses the same process as well.
In a recent interview with
, AMD senior vice president of technology development
Douglas Grose claimed
"We'll be producing early products probably in Q2 of 2008, with full production in the second half." However, Grose also claims the company is still anticipating whether or not it will use high-k metal gate technology in later 45nm revisions or if the company will wait until 32nm.
IBM will certainly play an integral role in any 45nm plans for AMD, though production on the 45nm node ramp is not something AMD has discussed at length. AMD's first 65nm processors
just hit store shelves a few weeks ago
Intel's 45nm processor, codenamed
, has already been taped-out. Intel guidance suggests the processor will be
available to the channel in Q1 2008
was previously labeled the K8L architecture by
AMD President Henri Richard in March 2006
. Late last year, AMD executives began using the name K10 instead, while internally the platform is labeled
. On paper,
appears to be architecturally identical to
, but utilizes the smaller node.
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RE: Facts and BS from IBM
2/6/2007 12:32:46 AM
I think if you use SOI you dont really need high k all that much. As far as I remember, high k reduces sub-threshold leakage by increasing oxide capacitance, while SOI does the same by reducing depletion capacitance. So while for Intel high k is critical, for AMD and IBM it may not be as important.
Since high k has its drawbacks - in particular interface trapped charges reduce carrier mobility, IBM and AMD may be actually better off delaying high k introduction till 32nm- even if they have the technology ready for 45nm.
RE: Facts and BS from IBM
2/6/2007 11:24:37 AM
CHeck the latest data on what the gate leakage looks like for atomic layer thick SiON. Gate leakage has become a huge componenet of standby power. SOI does nothing for that.
RE: Facts and BS from IBM
2/6/2007 12:11:48 PM
Thats right. But the main reason why we want a thin oxide layer is the subthreshold swing, isnt it? With SOI you can probably have a thicker oxide and still get a reasonable swing.
But of course I'm just speculating. I have no idea what are the actual tradeoffs for SOI and high-k for a 45 nm process.
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