The Test

We've already covered the architecture behind Intel's Core 2 processors extensively in the past, leaving the only unanswered questions centered around final performance. Today we're here to answer these questions, and we'll focus exclusively on performance. If you want to read more about Intel's Core architecture, please look back at the following articles:

Intel Core versus AMD K8 architecture

Spring IDF 2006: Introducing Intels new Core Processors

Because AMD is killing off its 1MB L2 Athlon 64 X2 parts, we've only included 512KB X2s in this review. The Athlon 64 FX-62 features a 1MB L2 per core and is obviously still included.

CPU: AMD Athlon 64 FX-62 (2.8GHz/1MBx2)
AMD Athlon 64 X2 5000+ (2.6GHz/512KBx2)
AMD Athlon 64 X2 4600+ (2.4GHz/512KBx2)
AMD Athlon 64 X2 4200+ (2.2GHz/512KBx2)
AMD Athlon 64 X2 3800+ (2.0GHz/512KBx2)
Intel Pentium Extreme Edition 965 (3.73GHz/2MBx2)
Intel Pentium D 960 (3.6GHz/2MBx2)
Intel Pentium D 950 (3.4GHz/2MBx2)
Intel Pentium D 940 (3.2GHz/2MBx2)
Intel Pentium D 930 (3.0GHz/2MBx2)
Intel Pentium D 920 (2.8GHz/2MBx2)
Intel Pentium D 820 (2.8GHz/1MBx2)
Intel Core 2 Extreme X6800 (2.93GHz/4MB)
Intel Core 2 Duo E6700 (2.66GHz/4MB)
Intel Core 2 Duo E6600 (2.40GHz/4MB)
Intel Core 2 Duo E6300 (1.86GHz/2MB)
Motherboard: MSI K9A Platinum (Socket AM2)
Intel D975XBX (LGA-775)
Chipset: ATI RD580
Intel 975X
Chipset Drivers: Catalyst 6.6 (ATI)
Intel 7.2.2.1007 (Intel)
Hard Disk: Seagate 7200.9 300GB SATA
Memory: Corsair XMS2 DDR2-800 4-4-4-12 (1GB x 2)
Video Card: 2 x ATI Radeon X1900 XT CrossFire
Video Drivers: ATI Catalyst 6.6
Desktop Resolution: 1280 x 1024 - 32-bit @ 60Hz (1600 x 1200 for games)
OS: Windows XP Professional SP2
New Pricing L2 Cache: 4MB or 2MB?
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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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