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Monday 4th August 2008

New Intel Core 2 Duo E8600 overclocked to 5GHz with air-cooling

Posted at: 10:41am 4th August 2008 by Antony Leather

Intel sharpens Wolfdale's claws as E0 stepping dual-cores proves to be stunning overclockers

6GHz

August should see Intel release its latest dual-core CPU model, the 3.33GHz Core 2 Duo E8600 and with it, a core update for the existing E8500 and E8400 that will see their steppings changes from C0 to E0. The Q9650 and a handful of new Xeons will launch. Early indications are that the new E8600 has plenty of performance potential. Overclockers at Taiwanese site Coolaler.com have managed to boot into Windows with an air-cooled E8600 clocked at 5GHz (using a 500MHz FSB, as the CPU has a 10x multiplier), although this did require a vcore of 1.6v. He later managed to clock the chip to 6.25Ghz using liquid nitrogen.

Both the E8400 and E8500 have already won the hearts of many overclockers, with many chips able to reach 4GHz with air-cooling with relative ease. Like the famous G0 stepping of the Core 2 Quad Q6600, the new E0 stepping dual-cores are already proving to be even more stunning overclockers than their predecessors. The E8500 with the C0 stepping currently retails for approximately £125 inc vat, so the new E0 stepping CPUs should be good value too, especially as you rarely see the benefits of more than two cores in games and applications. If you’re in the market for a new LGA775 CPU, they could well be worth the wait.

The E0 stepping will also feature a change in Platform Environment Control Interface (PECI) implementation which relates to the chip's thermal management and temperature readings; this may address some of the issues seen with the E8400 and E8500 with stuck thermal sensors leading to frozen temperature readings. We’ll be reviewing the new CPUs as soon as we get our hands on them. Also, bear in mind that the new CPUs will likely need a BIOS update so check your motherboard manufacturer’s website before buying one else you may find it’s currently unsupported.

Will you be buying the new E0 stepping E8600? Is it a better buy than a Quad core? Let us know your thoughts.



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Comments
4GHz Q6600

I'd like to see proof :)

Comment by paulgreyhead at 4:05pm 8th August 2008



oh bugger

Damn i just bought a E8400! lol i'll never time it right!

Comment by mogs5000 at 12:47pm 8th August 2008



4GHz Q6600

And what cooler might you be using? At what voltage?

Comment by pveater at 2:27pm 7th August 2008



Hold Fire...

I'm easily getting 4GHz out of my Q6600 on air and coupled together with my ultra graphics card and 4 gig of ram, all my games are maxed out and run smoothly. Buying an 86 would make "NO" difference. So I'm going to hold fire...for now.

Comment by marcus at 10:27am 7th August 2008



Typical...

Typical. I literally JUST bought an E8500 for my 790i Ultra. Sod's law. These chips sound promising, although I can't help thinking this may turn out to be a bit of an anticlimax, what with Nehalem on its way. If these chips are sub-£150, I shall be buying.

Comment by darkglobe at 10:49pm 6th August 2008



To wait or not to wait...

Currently running a E6700@3.5 under water, and am starting to consider worth it's upgrading. Was wondering if it was worth waiting for Nehalem, which is supposedly out later this year. However, I've read they are faster chips, but potentially poor overclockers. Perhaps overclocking one of these will be a better option, so I don't need a new mobo and memory just yet. Will be interesting to see how much they cost...

Comment by _Jargy at 1:43pm 5th August 2008



@droitwichdosser

I want a cheese and onion toastie

Comment by eddie543 at 12:46am 5th August 2008



Perhaps I should have waited...

Just bought the 8400 at a good price (or so I thought) and now I'm wondering if I should have waited after reading about the new stepping. Seems to be working fine but there's a permanent 8-10 degree difference between the cores.

Comment by DragonUK2 at 10:48pm 4th August 2008



Agreed

D_cypher. My old and great e6600 on stock speeds is going to be replaced and bought with a new motherboard. My kit is only 2005/6 and its starting to age nowadays, and has done a hell of lot since. This E8600 bad boy looks so more tempting than when the Conroe came into the scene!! :D AMD? Where are you? I havent heard of you even having anything clocked past 3Ghz .. if at all. nevermind stock speeds. Wakey Wakey!

Comment by Lightning_Pete at 10:09pm 4th August 2008



Looking very promising indeed!

Comment by _fac51_ at 10:02pm 4th August 2008



@ D-Cypher Definitely. I have my E8400 at 4GHz but it needs 1.5v to get to 4.3GHz which is a bit much for these wolfdales long term. If I can get it to 4.5GHz with less than 1.5v then I'll be happy ;) Can't wait to play with them in the lab!

Comment by combatus at 5:59pm 4th August 2008



What seals it for me...

Is that, on water, you could quite easily have a low power 24/7 4.5Ghz CPU. :D I reckon this'll be replacing my venerable E6600

Comment by D_Cypher at 5:32pm 4th August 2008



"He later managed to clock the chip to 6.25Ghz using liquid nitrogen." Wow, that's pointless. If I was to upgrade or create a new performance system, I would not even look at Dual-Core.

Comment by C7ouD at 3:37pm 4th August 2008



I'm waiting for some benchmarks of the Q9650 before I decide though this is very tempting, especially if it launches for around £150.

Comment by thewelshbrummie at 1:15pm 4th August 2008



Nice...

I WANT ONE...

Comment by droitwichdosser at 12:25pm 4th August 2008



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