Final Words

At this point, having seen dual core CPUs from both AMD and Intel, there's no question that dual core is desirable on all fronts; whether we're talking about the server world or on your desktop, dual core improves performance by a noticeable amount and the performance benefits will only get better down the road.

As a server solution, the dual core Opterons enable a whole new class of performance to be realized on platforms. Two socket servers will now be capable of having the performance of a 4-way system, something that has never been possible in the past. AMD's push with dual core into the server markets half a year before Intel's dual core Xeon arrives is going to tempt a lot of IT departments out there; the ability to get 4-way server performance at much lower prices is an advantage that can't be beat.

Despite AMD's lead in getting dual core server/workstation CPUs out to market, Intel has very little reason to worry from a market penetration standpoint. We've seen that even with a multi-year performance advantage, it is very tough for AMD to steal any significant business away from Intel, and we expect that the same will continue to be the case with the dual core Opteron. It's unfortunate for AMD that all of their hard work will amount to very little compared to what Intel is able to ship, but that has always been reality when it comes to the AMD/Intel competition.

On the desktop side, we are extremely excited about the Athlon 64 X2. The 4400+ that we compared here today had no problem competing with and outperforming Intel's fastest dual core CPUs in most cases, and at a price of $581, the 4400+ is the more reasonably priced of the X2 CPUs. That being said, we are concerned that availability of the lower cost X2 CPUs will be significantly more limited than the higher priced models. At the ~550 marker, your best bet is clear - the Athlon 64 X2 will be faster than anything that Intel has for the desktop.

What's quite impressive is how competitive the Athlon 64 X2 is across the board. With the Pentium D, we had to give up a noticeable amount of single threaded performance (compared to Intel's top of the line Pentium 4 CPUs) in order to get better multithreaded/multitasking performance, but with AMD, you don't have to make that sacrifice. Everything from gaming to compiling performance on the Athlon 64 X2 4400+ was extremely solid. In multithreaded/multitasking environments, the Athlon 64 X2 is even more impressive; video encoding is no longer an issue on AMD platforms. You no longer have to make a performance decision between great overall performance or great media encoding performance - AMD delivers both with the Athlon 64 X2. Also keep in mind that the performance preview that we gave of the Athlon 64 X2 today is actually a very conservative estimate. The shipping Athlon 64 X2 CPUs will run with regular DDR memory and with much faster motherboards - meaning that you should be prepared to be impressed even further down the road.

The real problem is that AMD has nothing cheaper than $530 that is available in dual core, and this is where Intel wins out. With dual core Pentium D CPUs starting at $241, Intel will be able to bring extremely solid multitasking performance to much lower price points than AMD will. And from what we've seen, it looks like that price advantage will continue for quite some time. It all boils down to economics, and in the sense of manufacturing capacity, Intel has AMD beat - thus allowing for much more aggressively priced volume dual core solutions. Then there's the issue of availability; as impressive as AMD's dual core desktop offerings are, we're honestly worried that we won't see any real volume until late this year at best. Intel does have a golden opportunity now to really step forward and regain some enthusiast marketshare, but we seriously doubt that we'll see anything faster than the Pentium D 3.2 anytime soon. It's strange how tables have turned, making Intel look like the value CPU manufacturer in the dual core race.

Now that we've seen both AMD and Intel dual core solutions, it's time to play the waiting game. Dual core Opteron 8xx series CPUs should be available now, with the 2xx and 1xx series following in about a month. The Pentium D and Pentium Extreme Edition should be shipping before the end of this month, with expected retail availability next month. And the big wait, of course, will be for the Athlon 64 X2, which will be available towards the end of this year.

Our dual core coverage does not stop here. We have more in the works including the promised Workstation comparison, a look at how multitasking in Linux is impacted by dual core, and even more multitasking scenarios modeled based on your feedback (so, keep it coming).

Gaming Multitasking Scenario
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  • cHodAXUK - Thursday, April 21, 2005 - link

    Anand, Jason and Ross.. hell of a job guys, you have out done yourselves. As for the X2 4400+ preview results, holy shit is all I can say, better than I expected and those scores are WITHOUT the aid of an NCQ enabled drive. The cost is high, very high infact but the X2 just scales so much better than the equivelent Intel. All I want to see now is an X2 4400+ with the FSB overclocked to DDR500 speeds, I am really interested to see how much that extra 1gb/s+ of bandwidth helps a dual core setup. Perhaps that is something you can look into for us please Anand and Co? T.I.A. ;)
  • Darth Farter - Thursday, April 21, 2005 - link

    http://www.hardwaregeeks.com/comments.php?catid=1&...
    [quote]:
    Current Intel Price List(3)

    Price in
    1,000 unit
    Performance Processors quantities

    64-bit Intel Xeon processor MP 3.33 GHz with 8 MB L3 cache $3692
    64-bit Intel Xeon processor MP 3.00 GHz with 8 MB L3 cache $1980
    64-bit Intel Xeon processor MP 2.83 GHz with 4 MB L3 cache $1177

    Value Processors

    64-bit Intel Xeon processor MP 3.66 GHz with 1 MB L2 cache $963
    64-bit Intel Xeon processor MP 3.16 GHz with 1 MB L2 cache $722
    [/quote]

    Intel's not too shabby with pricing either... ;)

    btw Dual OPTERON vs 4way(?) XEON @ techreport
    http://techreport.com/reviews/2005q2/opteron-x75/i...
  • Groovester - Thursday, April 21, 2005 - link

    65- Recommend you reread "A Look at AMD's Dual Core Architecture" page. The fact that AMD's Athlon64 and X2 memory controllers are on-die gives it a leg up on Intel's Pentium D's. On the X2, the communication between the two cores doesn't have to traverse the external FSB.
  • bob661 - Thursday, April 21, 2005 - link

    WHOODOGGIE!!!
  • Quanticles - Thursday, April 21, 2005 - link

    68 - he did the best he could, but the point is the same... lol. we're going to see some pretty amazing preformance from the real thing
  • Son of a N00b - Thursday, April 21, 2005 - link

    hit me up with one of these, four vid cards, some headphones and a 24' screen for hours of gaming bliss....w00t!

    anyway i can actually see also a game suddenly coming out written for dual core, with the developers pulling something outta their collective a$$'s....


    I'll wait for these to get a bit more refined though and the pwnage is clear that a dual core offers total uberness...

    good article anand...almost to complete lol...i actually have to save some time in my day to read em....gj!
  • fishbits - Thursday, April 21, 2005 - link

    From the article: "Although the use of ECC memory and a workstation motherboard would inevitably mean that performance will be slower than what will be when the real Athlon 64 X2s launch, its close enough to get a good idea of the competitiveness of the Athlon 64 X2."

    Anand didn't "cripple" or "misrepresent" anything. He got as close as he could with the materials available to him, and made it clear that some liberties/extrapolation would be required.

    However, it does look promising that the X2 will perform even better than projected today. Just as Anand said up front.
  • KillerBob - Thursday, April 21, 2005 - link

    You are right Griswold, and it was in these tests the Intel won the race;)
  • Zebo - Thursday, April 21, 2005 - link

    Expect at least 15% more performance when real X2 is released.

    Anand crippled/misrepresented it by running a 175 in his tests... Which has ECC memory, 2T, and my guess is 3-3-3 (most all ECC ram is 3-3-3 since he does'nt say I must go with the odds).

    Talk about hamstringing a A64. Anands own tests show just how crippleing 2T is for A64 upwards of 10% alone less performance. I've shown 3-3-3 vs 2-2-2 to be signifigant in my mem matrix tread about 5% since A64's love low latency. ECC knocks out about 3-5% more performance due to extra wait state. Would the "real" X2 debuting at 18% faster be unfair?? I don't think so when paired with desktop memory.

    It's going to get REAL ugly on the desktop for Team Blue no matter how you slice the numbers when a real live X2 comes with un-buffered mem, LL and 1T since Intel already loses to a unadventurous server chip right now.
  • Fricardo - Thursday, April 21, 2005 - link

    64 - I'd like to know the same. I definitely won't buy a processor for more than 250, no matter what the performance is. I'm sure they'll drop eventually, but I wonder if that'll happen before 939 is completely obsolete and I have to buy an M2 mobo anyways...

    Also, something I've been wondering: if dual core does have such an impressive effect on desktop performance and future programs will be multithreaded to take advantage of dual core, how come nobody ever talks about making multi-socket desktop boards? A dual-939 setup with a couple of $120 OC'd Winnie's would be just as fast as the X-2 and a heck of a lot cheaper. Or you could slap a couple of X-2's in there when they actually come out and have sick performance.

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