The Lineup - Athlon 64 X2

As we mentioned earlier, the Athlon 64 X2 isn't going to be officially launched until June.  While AMD is purposefully vague in their discussion of availability, it looks like their plans are for system builders and OEMs to offer Athlon 64 X2 systems in Q3 of this year and for retail availability to be in Q4 of this year. 

For AMD, the Athlon 64 4000+ was the last single core Athlon 64 that they will make; all model numbers after 4000+ will be dual core Athlon 64 X2s.  Starting at 4200+ and going up to 4800+, the Athlon 64 X2 continues AMD's trend of basing model numbers on clock speeds and cache sizes.  You can see the breakdown below:

For starters, the Athlon 64 X2's clock speeds aren't that low compared to the current single-core Athlon 64s.  The top of the line Athlon 64 FX-55 runs at 2.6GHz, only 200MHz faster than the Athlon 64 X2 4800+.  This is in stark contrast to Intel's desktop dual core offerings, which run between 2.8 and 3.2GHz, a full 600MHz drop from their fastest single core CPU. 

The other major difference between AMD and Intel's dual core desktop approach is in pricing. Let's take a look at the cost per core of the Athlon 64 X2:

We see that AMD's desktop pricing is much more reasonable than their dual core Opteron pricing, but then again, also remember that their desktop CPUs won't be in volume until later this year.  The second core never costs more than the first one, which is honestly the only way you can ensure good desktop adoption rates. 

That being said, let's compare it to Intel's pricing:

Because Intel is only shipping lower clocked dual core CPUs, Intel's chip prices are much lower - not to mention that Intel's manufacturing abilities far exceed those of AMD.  Percentage-wise, the Pentium D 3.2 commands a high premium for that second core, but the prices are overall quite reasonable.  The fastest Pentium D is still cheaper than the slowest Athlon 64 X2 4200+, and the slowest Pentium D is ridiculously cheap compared to AMD's dual core offerings. 

AMD's answer to Intel's aggressive pricing is two-fold. Eventually, all of AMD's CPUs will be dual core, and thus, prices will be driven back down to single core levels. But for now, AMD feels confident enough that their single core CPUs are fast enough to compete with Intel's low clocked Pentium Ds.  We put that exact thinking to the test in Part II of our Intel dual core preview and concluded that it really depends on what type of a user you are. If you tend to multitask a lot or run a lot of multithreaded applications, then a slower Intel dual core is what you need; otherwise, a faster single core AMD is your best bet. 

The Lineup - Opteron x75 Dual Core Server Performance: AMD’s Opteron x75 Series
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  • Phlargo - Thursday, April 21, 2005 - link

    Sounds like computing could change a lot in the next 6 months.

    I can't wait to get my hands on a dual core chip - that type of multitasking gaming performance is what I've been waiting for... 92% of unfettered performance during Doom3? That's unbelievable.
  • manno - Thursday, April 21, 2005 - link

    Another thing to consider is that the 939, and 940 Dual Cores work with old mobos. so that saves upgraders ~$100 for the mobo (I have no clue what PD mobo's are going to cost) plus the cost of DDR2 ~$100 for 512MB, not true if you're going with the PD. So if you own a 939 a 2.8 PD will realy cost you ~$441, 3.0 -$516, 3.2 ~$730.
    Throw that out the window if you're starting from scratch however.
  • manno - Thursday, April 21, 2005 - link

    Great review very detailed, I have one caveat, and I should preface it with the fact that I own 4 systems, and all of them have Athlon 64's or XP's.

    That being said your "Multitasking Scenario 2: File Compression" Seems to be misleading, and identifies the A64 as the processor of choice in the 2nd portion of the analysis.

    Maybe I'm wrong but from what I understand with how the test was performed you archived the file, got the amount of time it took to archive the file "x" for instance, and then figured out how many emails got imported in time "x" now because some processors took longer to create the archive than others they had more time to import emails. so in order to make this data more reflective of the performance of each processor you need to divide the number of emails imported by "x", and get e/s. The modified graph should be

    PD 3.2 =19124/5.08 or 3764.57 e/s
    A64 X2 =21687/6.25 or 3469.92 e/s
    PEE 3.2 =16875/6.65 or 2537.59 e/s
    AFX 55 = 3800/5.88 or 646.26 e/s

    These corrected numbers show that at least in this test the PD 3.2 is the winner by ~8%

    -manno
  • Calin - Thursday, April 21, 2005 - link

    At that prices, most of the users really won't need their current mainboards for new dual core processors. I would prefer to have lower priced single core than that prices on dual core.
  • blckgrffn - Thursday, April 21, 2005 - link

    We are talking about by this fall, folks. And a 90nm Dual core still uses LESS die than 2 2800+ put together because it is on a manufacturing smaller process, especially if they stick to a 512k cache which is obviously the sweet spot. By this fall I expect that we will see sub $200 dual cores from Intel to squeeze AMD on the desktop market. What is a real shame is that AMD doesn't have suffcient fabs to handle potential demand.

    For those of you who got all hot in your pants and said I can't buy a sub $200 dual core Intel right now, it is just as true that I can't buy one it all! ;P Chill!
  • PeteRoy - Thursday, April 21, 2005 - link

    Impressive.
  • josedawg - Thursday, April 21, 2005 - link

    Am I mistaken in thinking that AMD was throwing out their desktop dualcore line (A64 X2) in 2006? What prompted their earlier release of them? Was it the demand for desktop dualcore, pressure from Intel stealing desktop dualcore market, or excellent manufacturing at the AMD plants?
  • KeithDust2000 - Thursday, April 21, 2005 - link

    blckgrffn, "so if they can't bring anything out under $200 I will probably have to go with Intel. Boo for that ;) "

    INTEL doesn´t have one under $200 either.
  • Jeff7181 - Thursday, April 21, 2005 - link

    #14... all socket 939 motherboards will support the X2 with a BIOS upgdate.
  • Zebo - Thursday, April 21, 2005 - link

    #9 They'd have to release a 1.6 @ $240 to accurately compete with Intels slowness in Pentium D's starting at $241. Sorry not gonna happen. AMD not for budget shoppers anymore but those interested in performance. Want the best? Pay the price. Or substandard CPU at a discount?

    I can see a 1.8 for about $250 though however no way you're going to get into DC for less than $200.

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