The Test

The performance results in this review are largely the same as those from our earlier Core 2 review. However, there are a few changes to the test configuration that are worth noting:

  • The E6300/E6400 were run on the ASUS P5W DH Deluxe as it is a better motherboard for overclocking than the Intel D975X. Performance differences between the Intel and ASUS boards are negligible and thus the results are directly comparable to one another.
  • The E6300 numbers in this review are a bit higher than in our last review because we are using a B1 stepping E6300, compared to the A1 stepping E6300 used in our previous article. The A1 CPU we used in the last article was a pre-production chip, while the B1 CPUs we're using here today are production CPUs that offer slightly better performance in some cases. All other Core 2 and Core 2 Extreme CPUs in this article are all B1 or later.
  • As we mentioned earlier, we did not have a Socket-AM2 X2 3800+ on hand that we could use for overclocking results, but you can get an idea of what an overclocked X2 3800+ would perform like by looking at the performance results for the X2 4600+, 5000+ and the FX-62. We looked at Athlon 64 X2 3800+ overclocking in the past on socket 939, and we would expect the AM2 chips to overclock similarly.
  • We've eliminated all of the Pentium D lineup from the bar graphs except for the Pentium EE 965, which is included as a reference point.
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 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 E6400 (2.13GHz/2MB)
Intel Core 2 Duo E6300 (1.86GHz/2MB)
Motherboard: MSI K9A Platinum (Socket AM2)
ASUS P5W DH Deluxe (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
Overclocking Application Performance using SYSMark 2004 SE
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  • goinginstyle - Wednesday, July 26, 2006 - link

    quote:

    You might want to pick up the new stepping 6 (mass produces ones) A lot of people over at xteamesystesm are complaining that the stepping 6 doesn’t over clock nearly as well as the stepping 5 and that the temperatures are staring to go though the roof.


    Read the entire post and see what the outcome is before posting this kind of information.
  • Kiijibari - Wednesday, July 26, 2006 - link

    quote:

    You might want to pick up the new stepping 6 (mass produces ones) A lot of people over at xteamesystesm are complaining that the stepping 6 doesn’t over clock nearly as well as the stepping 5 and that the temperatures are staring to go though the roof.


    That's the reason why he was using stepping 5 cores, if he would have used stepping 6, no article, no clicks, no advertising money (from Intel(?) ;-) )

    I mean an overclocking article itself is nonsense, exspecially if you only have 1 kind of a specific CPU and that one is directly from Intel...

    Just wait until the first guys bought E6300s because of anandtech and then stuck around ~2.0/2.2 GHz. Guess who is angry then ...

    Sadly but it looks like anandtech does not care too much about that :(

    regards

    Kiijibari
  • Gary Key - Saturday, July 29, 2006 - link

    quote:

    ust wait until the first guys bought E6300s because of anandtech and then stuck around ~2.0/2.2 GHz. Guess who is angry then ...


    The retail chips are overclocking just as well as the ES chips from all indications the past few days. I know my retail E6400 is 150MHz higher than the ES sample. ;-) Here is an example at XS.......

    http://www.xtremesystems.org/forums/showthread.php...">E6700 Retail
  • Anand Lal Shimpi - Wednesday, July 26, 2006 - link

    As soon as we can get our hands on something other than B1 stepping CPUs we'll include those results. As far as I know, there's nothing that has been changed in current silicon revisions to severely limit overclocking. I haven't run into the issues myself but I will do my best to follow up once I can get later silicon.

    Take care,
    Anand
  • mkruer - Wednesday, July 26, 2006 - link

    Thanks Anand,

    I don’t know if this is true any more but I seem to recall that Intel has a small scale FAB just for engineering samples, and I think that they tend to use it both as a test to validate the new FAB process as well as the CPU design. Thus the engineering samples tend to be better then the mass production chips. Remember the 5 GHz Prescott Intel showed off. I don’t think that anyone go a 5 GHz Prescott running from production chips without having to use liquid nitrogen to keep the chip cool.

    This is something to keep in mind when benching the ES ability. The real production chip might be totally different from a thermal and OC aspect.
  • mine - Wednesday, July 26, 2006 - link

    its been reported that there is one change in b2 retail stepping .
    based on 3 6800 retail versions (b2) @ (xs) b1 stepping seem to oc better than the retail versions

    so right now it seems to early to prejudge ..
  • PetNorth - Wednesday, July 26, 2006 - link

    Anand, your X2 4200+ $215 is wrong. It's EE version. Normal version is $187

    http://www.amd.com/us-en/Processors/ProductInforma...">http://www.amd.com/us-en/Processors/Pro...ion/0,,3...
  • aldamon - Wednesday, July 26, 2006 - link

    Get a better mobo AT and you'll see what the E6300 can really do. The $150 Gigabyte DS3 goes well over 400 FSB with the right RAM.
  • goinginstyle - Thursday, July 27, 2006 - link

    His motherboard is fine, using stock cooling is what limited the overclocks.
  • rjm55 - Wednesday, July 26, 2006 - link

    It's been interesting to watch as AT has paid more and more attention to overclocking. Fortunately for me, the overclocking on good air cooling has been a perfect match for what I'm looking for. I just checked and the monster Tuniq cooler we saw in the Conroe launch sells for just $49. People using it say it is silent because of the huge fan that turns slow inside the core. The point is I can likely go even further with the Tuniq than Anand found here - which was impressive enough.

    Now that we see the headroom on even the cheapest Conroe CPUs it is hard to understnad why anyone can consider an AM2 for anything but the low-end. Until Am2 drops to 65nm the Conroe OC blows away anything I can do with my AM2 chip.

    Thanks for showing us what great overclockers Conroe is turning out to be! The E6600 with 4MB cache for $312 is looking mighty sweet for me. If I remeber you got yours to 4GHz.

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