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[Tom's Hardware] Overclocking Intel's Wolfdale E8000

post #1 of 7
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Quote:
Only a few days ago we looked at the performance of Intel's new Core 2 dual core processors, the Core 2 Duo E8000 series, aka Wolfdale. While a 45 nm quad core Extreme edition processor (Yorkfield) has been available since early winter, the dual-core processors for the mainstream had not been released until recently. As the first Wolfdale review made clear, the new dual core processors provide a nice performance boost when compared to the 65 nm Core 2 Duo E6000 generation. This time we want to look at the overclocking potential and the power requirements of the new Wolfdale-based 45 nm Core 2 E8000 processors, as the enthusiast crowd has very high expectations since 65 nm Core 2 Duo Conroe already is an amazing overclocker.

Core 2 processors have served the overclocking community well since their debut. Unlike AMD, which must produce its 90 nm processors closer to their technical and thermal limits to stay competitive, Intel plays on its manufacturing prowess, which is at least 12 months ahead of that of AMD. The Santa Clara-based firm outputs most of its mainstream processors with a 65 nm process (internally called P1264) and has been producing 45 nm processors based on P1266 since the third quarter of last year. AMD continues to rely on the mature 90 nm process and is still optimizing its own 65 nm process as well as the Phenom design, which has been behind schedule.

If you look at the maximum clock speed AMD has been offering in its dual-core portfolio, which is 3.2 GHz in case of the Athlon 64 X2 6400+, and compare it to the clock speeds users reach by overclocking them (that would be only 100-200 MHz more), there is not much of a margin left. However, Intel Core 2 processors' in retail channels offer clock speeds up to 3.0 GHz, and many of these devices can easily be overclocked to more than 4 GHz. Even if you decided to opt for a low-cost Pentium Dual Core E2100 model (with a 1.6- to 2.0-GHz default clock speed), you'd still be able to overclock the processor to at least 2.8 GHz. During the tests, the device even remained stable at 3.2 GHz, which equals a clock speed increase of over 50%. This certainly does not mean, of course, that AMD's processors, especially its lower-end mainstream 65 nm devices, are not geared for good overclocking results, either. However, AMD's overclocking margins haven't been as large compared to what Intel's modern processors offer.
They got an E8500 to 4.3 GHz!

http://www.tomshardware.com/2008/02/...e_on_steroids/
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post #2 of 7
You need a link to the source... I wanted to see the setup they used.
    
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post #3 of 7
Repost.

Also, demonstrates that the guy writing this is an idiot when it comes to overclocking.

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post #4 of 7
Quote:
Originally Posted by trueg50 View Post
Repost.

Also, demonstrates that the guy writing this is an idiot when it comes to overclocking.

Source
Uhhh please enlighten us all as to the fallacies of Tom's Hardware...
    
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post #5 of 7
It would be great if the writer left it on at that speed for about 2 weeks and see if it dies like the 8400's have been doing even under the maximum recommended voltage.
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post #6 of 7
Thread Starter 
Sorry for the repost.
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post #7 of 7
The only way to reduce temps is to pop the top of a Wolfdale?

They don't even mention water cooling. Why should you pop the top off a Wolfdale if heat isn't currently an issue? Toms Answer:

Quote:
As you hit the limits of an architecture, not yet hitting thermal limits (Wolfdale never got really hot during our testing), one might wonder whether or not it makes sense to remove the processor's heat spreader in order to directly attach a heat sink in an effort to improve heat dissipation.
Doesn't make sense at all.

Neither does this statement:

Quote:
We're also not sure whether it was the CPU core or the system bus that created the bottleneck that prevented higher clock speeds from being reached, as 4+ GHz can oftentimes be reached with the predecessor, Core 2 Duo E6000 Conroe. However, the 45-nm Wolfdale was optimized for performance per Watt instead of clock speed, and it clearly beats the 65-nm Conroe in all efficiency benchmarks and delivers better performance at decreased power consumption both in idle and under maximum load.
New process, new techniques, not optimization Toms.
    
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