AMD also gave us a brief update on 45nm, stating that they have successfully produced a SRAM test wafer at 45nm.  It's very popular to produce a wafer full of SRAM chips as you're bringing up and validating any new process, since the circuits are simple enough to actually make the chips producable but complex enough to get useful feedback on your process from the test wafer. 

AMD's 45nm SRAM test wafer follows a little over 3 months after Intel demonstrated a similar 45nm test wafer.  The benchmark when producing a wafer of SRAM is how small you're able to produce each SRAM cell. At 45nm Intel was able to achieve a 0.346 square micron SRAM cell size compared to AMD's 0.370 square micron SRAM cells.  Intel's advantage in SRAM cell size is nothing new, as they have been doing so in previous process technologies as well.  The advantage in SRAM cell size is one reason why you often see Intel more eager to equip its CPUs with larger L2 caches; obviously with no on-die memory controller, Intel also often benefits much more from a larger L2 cache than AMD in the first place. 


Intel's 45nm SRAM test vehicle - 0.346 sq micron cell size

Today's update had nothing to do with Socket-AM2 or AMD's transition to DDR2, but we do have some news with regards to that as well.  As you've undoubtedly heard and maybe even seen elsewhere, AMD's AM2 platform has not been performing very well in development over these past couple of months.  Just before IDF, AM2 samples were still performing lower than their Socket-939 counterparts, which was beginning to worry us and AMD's parters a bit.  However we're excited to report that AM2 performance has finally started exceeding that of Socket-939.  The performance gains we've been hearing and seeing are generally 5% or lower at the same clock speeds using DDR2-800, but it's still very early.  The main point to take home is while the final verdict is still not out, AM2 is at least starting to look like more of an upgrade and not what we saw with Intel's DDR to DDR2 transition almost 2 years ago. 

There's still a lot that AMD does have to give us however, including a more specific roadmap of what comes after their DDR2 transition.  AMD's Phil Hester has publicly stated that once AM2 launches it will be more forthcoming with information on future architecture revisions, we can only hope so because over the past 12 months Intel has put the pressure on AMD to really start talking about the future.  

The good news today is that AMD is truly growing as a company.  By 2008 AMD hopes to be able to double its yearly shipments of microprocessors, and it's finally got manufacturing capacity to do just that.  For the past few years AMD has held technological and performance advantages over Intel, now it's time for AMD to play catchup on the manufacturing side.  AMD has a long way to go before being anywhere close to Intel's manufacturing abilities, but it is in a very good place today.

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  • coldpower27 - Wednesday, April 05, 2006 - link

    Yeah considering AMD has gotten only 15% so far from 90nm DSL SOI, considering they make 3.00GHZ of ocurse. Reply
  • BaronMatrix - Tuesday, April 04, 2006 - link

    Intel showed NO INCREASE WHEN GOING TO DDR2, so how is AMD slacking if they DON'T get 10-20% increase? Reply
  • defter - Wednesday, April 05, 2006 - link

    Because Intel's chips were FSB limited and couldn't take advantage of full bandwidth that DDR2 offered. AMD's chip can utilize full bandwidth because of integrated memory controller. Reply
  • creathir - Tuesday, April 04, 2006 - link

    Horray! He lives! At least AM2 is finally starting to look more like a "next gen" platform than it has in the past.
    - Creathir
    Reply
  • ncage - Tuesday, April 04, 2006 - link

    Isn't ibm helping them out some in this department? Reply
  • bob661 - Tuesday, April 04, 2006 - link

    Good to see them working on 45nm. Hopefully, the next transition will be closer together with Intel. Competition is good. Reply
  • Furen - Tuesday, April 04, 2006 - link

    The problem is that the actual transition to a new manufacturing process requires a pretty hefty investment. I'm sure AMD has been able to go 65nm for a while now, it just cant afford to do so. Reply
  • mesyn191 - Wednesday, April 05, 2006 - link

    No, they've been waiting on tools from other manufacturers + validating thier VHDL libraries. In fact that is why FAB36 is starting out with .90 production instead of .65, AMD wants to get some revenue from it ASAP and since thier .65 stuff is still on order they have to work with what they've got instead. Reply

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