Final Words

Intel's Core 2 Extreme X6800 didn't lose a single benchmark in our comparison; not a single one. In many cases, the $183 Core 2 Duo E6300 actually outperformed Intel's previous champ: the Pentium Extreme Edition 965. In one day, Intel has made its entire Pentium D lineup of processors obsolete. Intel's Core 2 processors offer the sort of next-generation micro-architecture performance leap that we honestly haven't seen from Intel since the introduction of the P6.

Compared to AMD's Athlon 64 X2 the situation gets a lot more competitive, but AMD still doesn't stand a chance. The Core 2 Extreme X6800, Core 2 Duo E6700 and E6600 were pretty consistently in the top 3 or 4 spots in each benchmark, with the E6600 offering better performance than AMD's FX-62 flagship in the vast majority of benchmarks. Another way of looking at it is that Intel's Core 2 Duo E6600 is effectively a $316 FX-62, which doesn't sound bad at all.

We're still waiting to get our hands on the E6400 as it may end up being the best bang for your buck, but even the slower E6300 is quite competitive with AMD's X2 4200+ and X2 3800+. If AMD drops the price on those two parts even more than we're expecting, then it may be able to hold on to the lower end of the performance mainstream market as the E6300 is not nearly as fast as the E6600.

As impressed as we are with Intel's Core 2 processor lineup, we are still very concerned about availability and street pricing. To quote from our last Core 2 preview article:

While Intel's Core 2 Duo and Core 2 Extreme processors will be released at the beginning of Q3 of this year it will take some time for all of Intel's shipments to be Conroe based. The scary statistic is that by the end of this year, only 25% of Intel's Performance Mainstream desktop processor shipments will be based on Conroe. The remaining 75% will still be NetBurst based, meaning they will be Pentium 4, Pentium D and Pentium Extreme Edition.

...

For the Dells of the world, Conroe availability shouldn't be too much of an issue because companies like Dell get first dibs. For years of not going with AMD, all while demanding something more competitive from Intel, you better believe that Dell is going to soak up every last Conroe that it can.

The problem then becomes what happens after Dell and HP have eaten their lunch; unfortunately the concern is that aggressive pricing won't be enough to reduce retail demand for Conroe. What we're worried about happening is a very small supply of Conroes on the retail market in late Q3/early Q4, resulting in much higher street prices than what you see on page 2. In the worst case scenario for Intel, Conroe's limited retail availability could result in a price to performance ratio equal to or worse than AMD's Athlon 64 X2.

Despite pulling in the official launch date for Core 2 processor benchmarks, shipment dates for the CPUs haven't changed. According to Intel:

Intel Core 2 Extreme processor based systems and boxed product are expected to be available on the day of launch, 27 July. Intel Core 2 Duo processor based systems and boxed product [through places such as Newegg] are expected to be available from 7 August. Each OEM has their own product introduction / transition cycles based upon their target market segment and current product offerings. We expect some to offer product in August with more introductions extending through September. Check with the OEMs of your choice to get their specific message on system availability.

From what Intel is telling us, you shouldn't be able to so much as purchase Core 2 processors until after the first week in August, although you'll be able to get complete systems before then. At the same time, we're hearing that distributors already have some Core 2 parts in stock and will begin shipping very soon. While we tend to believe Intel's assessment of availability, we're hoping it's conservative.

If Intel's availability statements are true or even worse, overly optimistic, then don't expect to be upgrading to a Core 2 system anytime soon. However, if all goes well, although Vista may be delayed until 2007, Intel's Core 2 processors will give you a very good reason to upgrade this year.

Overclocking
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  • invise - Friday, July 14, 2006 - link

    According to page 3 "The Test", you used an Intel D975xBX motherboard (Intel 975X chipset) for the tests in the article. Yet in the picture of the Tuniq Tower on page 18 "Overclocking", there is clearly an Asus board with a gold/copper chipset heatsink, blue PCI-Express 16x slot, and alternating yellow and black DIMM slots. Which board is this? I suspect a P5WD2 or P5N32-SLI, just from looking at pictures online, but from what I can find neither of those has a gold/copper heatsink on the Northbridge.

    I'm curious because you got the board's FSB stable at 445 MHz, which is critical when working with a CPU with a low, locked multiplier. If any other users recognize the board please ID it.
  • spug1 - Friday, July 14, 2006 - link

    quote:

    According to page 3 "The Test", you used an Intel D975xBX motherboard (Intel 975X chipset) for the tests in the article. Yet in the picture of the Tuniq Tower on page 18 "Overclocking", there is clearly an Asus board with a gold/copper chipset heatsink, blue PCI-Express 16x slot, and alternating yellow and black DIMM slots. Which board is this? I suspect a P5WD2 or P5N32-SLI, just from looking at pictures online, but from what I can find neither of those has a gold/copper heatsink on the Northbridge.


    I noticed that too Invise. Can we have some clarification as to whether you used the intel board, or the asus p5w-dh for the testing of conroe?!

    cheerz, :)
  • JarredWalton - Friday, July 14, 2006 - link

    Overclocking was done with the ASUS board. The benchmarks scores were tested on the Intel board as reported on page 3.
  • Suraj - Friday, October 20, 2006 - link

    What other parts did u change when overclocking? I'm very eager to know what exact parts u used when overclocking the e6600.
  • Kiste - Friday, July 14, 2006 - link

    Great review, as always. I have to admit though that I was hoping for a bit more with regard to i965 based mainboards.
  • Gary Key - Friday, July 14, 2006 - link

    quote:

    Great review, as always. I have to admit though that I was hoping for a bit more with regard to i965 based mainboards.


    We have a few P965 boards in house currently, however all of them are undergoing almost daily bios changes. They should be very solid from a performance viewpoint within 30 days but at this time they are still immature and any performance results shown with them are not final.
  • Wesley Fink - Friday, July 14, 2006 - link

    You will see Conroe motherboard reviews the first of the week, and yes, there are 965 boards in the reviews.
  • DrMrLordX - Friday, July 14, 2006 - link

    Could you guys please do a mini-review of this chip? In particular, could you overclock it using a Tuniq Tower 120 or something and give us some idea of how high it will go? I've been wanting to know more about that proc since AM2 launched, but AMD has been doing a lousy job of getting them into retail channels.
  • redpriest_ - Friday, July 14, 2006 - link

    Very detailed, I loved it. But quick question: Your screenshots with cpuid have the stepping as a B1 stepping 5 Conroe - I bought a retail Conroe X6800, and it was a stepping 6 revB2 - and it "only" clocks to 3.466 ghz stably. 3.733 is unstable and 4 ghz is a no boot into Windows; so my question is - is that the stepping you used or was it just a screenshot from an older comparison?
  • Wesley Fink - Friday, July 14, 2006 - link

    Our review samples are all Stepping 5. We also have an earlier Stepping 4 unlocked E6700 that overclocks very well. We understood stepping 5 was the Retail stepping. We will clarify this with Intel later today.

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