Overclocking Core i7: A Tale of Two Retail Processors…

Discussion about Intel CPUs and overclocking. Need help with that new Intel processor? Not sure which one is right for you? Like to void your warranty? This is the place for you! Please keep the topic on Intel Processors!
Post Reply
User avatar
geokilla
Moderator
Moderator
Posts: 1048
Joined: Thu Mar 15, 2007 9:46 am
Location: Toronto, Canada

Overclocking Core i7: A Tale of Two Retail Processors…

Post by geokilla »

http://www.anandtech.com/cpuchipsets/in ... spx?i=3502

I stopped reading after halfway through the 2nd page, but damn. Those are some HUGE differences in terms of voltages and CPU speed and stuff. Maybe Nehalem was released a tad too early...
Intel Core i5-3570K @ 4.2Ghz @ 1.16V (CPU-Z + LinX)
Gigabyte Z77X-UD5H F14 BIOS
ASUS GTX 460 768MB @ 800/1950
Kingston HyperX DDR3 8GB @ DDR-1333
Corsair AX750
Crucial M4 128GB
Western Digital Black 1TB
Cooler Master Hyper 212+ EVO
BenQ E2420HD
---------------------
I AM CANADIAN!
User avatar
FZ1
Moderator
Moderator
Posts: 4448
Joined: Mon Dec 27, 2004 6:49 pm
Location: Cincinnati, Ohio
Contact:

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by FZ1 »

There is always variation in the production process. That's why they bin cpu's, RAM, etc, etc. I started reading it this morning and had to laugh as he was actually surprised some chips clock better than others. How long has he been doing this? :roll:
Joe
User avatar
martini161
Mr Awesome
Mr Awesome
Posts: 3183
Joined: Sat Sep 08, 2007 8:27 pm
Location: Cherry Hill, New Jersey

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by martini161 »

that has to be one of the stupidist articles ive ever read, especially the second page. all he did was say this in 1,119 words: Results will vary.
User avatar
geokilla
Moderator
Moderator
Posts: 1048
Joined: Thu Mar 15, 2007 9:46 am
Location: Toronto, Canada

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by geokilla »

It's true that results will vary, but that big of a difference is just unbelievable. In my opinion, Intel needs to do something about that and make that difference a bit smaller.
Intel Core i5-3570K @ 4.2Ghz @ 1.16V (CPU-Z + LinX)
Gigabyte Z77X-UD5H F14 BIOS
ASUS GTX 460 768MB @ 800/1950
Kingston HyperX DDR3 8GB @ DDR-1333
Corsair AX750
Crucial M4 128GB
Western Digital Black 1TB
Cooler Master Hyper 212+ EVO
BenQ E2420HD
---------------------
I AM CANADIAN!
User avatar
martini161
Mr Awesome
Mr Awesome
Posts: 3183
Joined: Sat Sep 08, 2007 8:27 pm
Location: Cherry Hill, New Jersey

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by martini161 »

geokilla wrote:It's true that results will vary, but that big of a difference is just unbelievable. In my opinion, Intel needs to do something about that and make that difference a bit smaller.
any suggestions? they cant. no two peices of silicon are the same. when your making things this precise, the tolerances are so small, that if it works, you bin it. if they went around taking out all the bad overclockers, the price would skyrocket
User avatar
Alathald
Legit Extremist
Legit Extremist
Posts: 1630
Joined: Sun Dec 17, 2006 11:55 pm
Location: Southern Ohio
Contact:

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by Alathald »

If you want a guarantee that a cpu will hit a certain frequency, buy one rated for that frequency. Short of that, it's a crap shoot.
Image
User avatar
geokilla
Moderator
Moderator
Posts: 1048
Joined: Thu Mar 15, 2007 9:46 am
Location: Toronto, Canada

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by geokilla »

](*,) Guess my two years of being in the AnandTech and Legit Reviews community hasn't taught me some obvious stuff like this. I shoulda known bout this. ](*,)

Where is Anand anyways....God I miss his reviews and same with Gary's reviews.
Intel Core i5-3570K @ 4.2Ghz @ 1.16V (CPU-Z + LinX)
Gigabyte Z77X-UD5H F14 BIOS
ASUS GTX 460 768MB @ 800/1950
Kingston HyperX DDR3 8GB @ DDR-1333
Corsair AX750
Crucial M4 128GB
Western Digital Black 1TB
Cooler Master Hyper 212+ EVO
BenQ E2420HD
---------------------
I AM CANADIAN!
User avatar
Apoptosis
Site Admin
Site Admin
Posts: 33941
Joined: Sun Oct 05, 2003 8:45 pm
Location: St. Louis, Missouri
Contact:

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by Apoptosis »

geokilla wrote:](*,) Guess my two years of being in the AnandTech and Legit Reviews community hasn't taught me some obvious stuff like this. I shoulda known bout this. ](*,)

Where is Anand anyways....God I miss his reviews and same with Gary's reviews.
Anand is still around... saw him at CES... Looking good and he's just doing the business side of the site if you ask me more than anything.
User avatar
Kougar
Legit Extremist
Legit Extremist
Posts: 251
Joined: Mon Feb 12, 2007 12:59 pm
Location: Texas

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by Kougar »

Anand was saying there is a huge difference in memory controllers, not the actual core silicon, that is behind the widely varying results. But this was to be expected, several people wrote articles that they were concerned about IMC stability when packed in next to four hot CPU cores.

He just spent two pages stating that ut just means Core i7 is not as certain to hit specific overclocks as any Quadcore Penryn was.
Core i7 920 @ 4.2GHz 1.36v
Gigabyte GA-X58-UD5
Under Water
User avatar
geokilla
Moderator
Moderator
Posts: 1048
Joined: Thu Mar 15, 2007 9:46 am
Location: Toronto, Canada

Re: Overclocking Core i7: A Tale of Two Retail Processors…

Post by geokilla »

Kougar wrote:Anand was saying there is a huge difference in memory controllers, not the actual core silicon, that is behind the widely varying results. But this was to be expected, several people wrote articles that they were concerned about IMC stability when packed in next to four hot CPU cores.

He just spent two pages stating that ut just means Core i7 is not as certain to hit specific overclocks as any Quadcore Penryn was.
So it could be the memory controllers which are causing all these weird and "unstable" overclocks as compared to Penryn? Maybe Intel moved a bit too quickly with this direct connect thing.
Intel Core i5-3570K @ 4.2Ghz @ 1.16V (CPU-Z + LinX)
Gigabyte Z77X-UD5H F14 BIOS
ASUS GTX 460 768MB @ 800/1950
Kingston HyperX DDR3 8GB @ DDR-1333
Corsair AX750
Crucial M4 128GB
Western Digital Black 1TB
Cooler Master Hyper 212+ EVO
BenQ E2420HD
---------------------
I AM CANADIAN!
Post Reply