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Intel to Stunt Overclocking on Sandy Bridge CPUs

by - source: Tom's Hardware US

This could be the end of the line...

Are you a fan of Intel CPUs but also love overclocking? Then there may be a reason to not look forward to the upcoming Sandy Bridge. 

According to slides shown by Hong Kong-based HKEPC's YouTube channel, Sandy Bridge will have a single single internal clock generator issuing the basic 100MHz base clock that'll run for the USB, SATA, PCI, PCI-E, CPU cores, Uncore, and RAM.

The clock generator will be a part of the P67 chipset and will transmit via to DMI bus to the CPU. This means that the user won't be able to tweak the CPU speed without affecting the entire system.

Bit-tech claims to have spoken to one of its Taiwanese motherboard sources, and early tests show that even upping the base clock by a measly 5 MHz caused the USB to fail and SATA bus to corrupt.

We're sure that motherboard makers are doing everything they can to come up with a way around this, which could make for a huge competitive point that'll cater to the enthusiast market.

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jamie_macdonald 28/07/2010 12:00
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I do not overclock my current CPU (Q6600) but i'm pretty sure many people will be disgruntled at this... Especially the kind who overclock for the sake of it (regardelss of need).

...in saying that if the price points on realease actually match the performance then i suppose it's not going to be an issue for many either. Should be interesting...

Silmarunya 28/07/2010 12:05
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Thank you Intel, you just gave AMD yet another thing going for it.

I'm getting a feeling that recently AMD has been recovering not only through its own merit, but also through Intel's greed and arrogance.

That is of course assuming this is true, as rumors are rumors and nothing more.

darksai 28/07/2010 12:39
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Note that they only just started truly releasing unlocked processors. This would self-justify their premium pricing, but instead of just these being value beaten by their own locked processors, their whole lineup will look artificially priced compared to amd's.

darksai 28/07/2010 12:39
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Note that they only just started truly releasing unlocked processors. This would self-justify their premium pricing, but instead of just these being value beaten by their own locked processors, their whole lineup will look artificially priced compared to amd's.

Anonymous 28/07/2010 13:05
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This is a ridiculous move for intel to make.

I'm now very glad that I recently bit the bullet and upgraded to a core i7, as it seems (at this early stage) that sandy bridge will be a huge disappointment for enthusiasts. Having never spent more than £120 on a cpu before (and always going with AMD, for budget reasons), it was a big investment to spend £180 on an i7 920. However, the fact that I was able to overclock it from 2.67Ghz to a stable 4.4Ghz definitely made it worth it. Overclocking potential is the only reason why a lot of people would consider intel's cpus, given their ridiculously high pricing.

If intel reduces overclocking flexibility on sandy bridge, there will be no way I will be considering it. Instead, I will now be much more interested in news about AMD's Bulldozer. Bad move intel.

zipzoomflyhigh 28/07/2010 13:52
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If they clock them high, there will be no reason to overclock. Intel and AMD both are capable of releasing 4ghz cpu's, why don't they? Because they you would say it does not overclock. Think about it.

silverblue 28/07/2010 15:38
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CPUs are designed to not exceed a specific power figure by default. We all know overclocking requires masses of extra power; that's why Turbo was invented - so the CPU doesn't exceed the imposed limit, but gives the best performance for single- and multi-threaded workloads alike by turning off power to idle cores and boosting those cores in use, or setting all cores to the same speed. As you overclock, you throw efficiency into the dustbin. Turbo is a smart way to get extra performance without potentially damaging your system.

However, as overclockers don't care for this, this decision isn't a smart one for enthusiast models. AMD are usually cheaper anyway, and once you have the choice between an 8-thread Sandy Bridge and an 8-thread Bulldozer at the same speed, it'd make more sense to buy Bulldozer any day of the week if both CPUs perform very closely to each other - you save money on the initial purchase as well as have the option of pushing the AMD chip past 4GHz, which will bring AMD the performance crown. What's more, even if you could overclock Sandy Bridge, having everything tied to one base clock will result in a system-wide increase in power usage and heat production as well as a reduction in system stability.

The only downside for AMD fans would be that AMD might (will?) charge more for Black Edition models as there'd be no equal Intel offering, however I doubt it'll matter to overclockers as they know money is a pre-requisite for this sort of thing. I suppose it's worth pointing out that, as with graphics cards, the better selling models are the cheaper ones, so it may not be a big issue for Intel, therefore whilst AMD could offer a Black Edition dual-core CPU to cater for those who don't want to pay too much, it still probably won't be too cheap.

darksai 28/07/2010 15:52
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The difference will that intel cpu's at 4ghz will be much more expensive than an amd that overclocks to 4ghz. On top of that, if manufacturers find a work around, those mobo's prices will through the roof (comparatively) to make up for the engineering costs.
Market-wise, its really an attack on cooling related products. People who buy sandy bridge will have little incentive to buy better cooled cases, extra fans, cpu coolers, etc. And will instead sink their budget into a faster (intel) cpu.

technogiant 28/07/2010 19:23
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This is only going to apply to the 1155 socket sandybridge not the 2xxx socket (whatever the figures are I forget).
So we are going to see buget 1155 sockets/cpus without overclocking, mid range 2xxx cpu's with overclocking and then high extreme unlocked processors....it's a cunning way for intel to milk more money from the overclockers.....that said they can shove it anyway....I don't want intel integrated graphics eating up my valuable cpu die space.

guanyu210379 28/07/2010 22:10
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Silmarunya :
Thank you Intel, you just gave AMD yet another thing going for it.I'm getting a feeling that recently AMD has been recovering not only through its own merit, but also through Intel's greed and arrogance.That is of course assuming this is true, as rumors are rumors and nothing more.


People who put their system overclocked all the time can think correctly.
People who don't OC at all are chickens.
People, who OC their system only when they need it such only during games, etc. and then put it back to the original speed during normal usage, are smart

goxon 28/07/2010 22:45
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i have Inttel e2160. when i buy him he was cheap and extreme OC friendly(100%). if this is true ten il be back to AMD

silverblue 28/07/2010 22:53
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I don't overclock my PC. I bought a Phenom II X3 710 instead of a 720 due to price which means an HT overclock is needed... but I'm not sure how far my RAM will go.

*boc boc*

gamesmachine 28/07/2010 23:56
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I see this being for the lower end chips, the extreme editions etc will be overclockable, I don't see Intel just giving up on enthusiasts after all the extreme edition processors of the past. Im sure there will be more info to come from Intel, or adjustments. I suppose we will see...and if its all for the worst I better get saving for an i7....

technogiant 29/07/2010 01:06
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^ I'm sure they will continue with the extreme edition range....but what proportion of current Intel owners can afford to buy them :/ If thats the price of overclocking on an intel platform then AMD here I come.

technogiant 29/07/2010 01:12
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Infact they may drop the extreme range in favour something similar to the "k" series cpu's they just trialed, although they must make a huge profit on the extreme versions I doubt they sell that many, if they were to make a chip priced mid ranged with an unlocked multiplier although they would make less profit per unit I'm would imagine they would make up for that with large numbers of sales.

silverblue 29/07/2010 07:28
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Sorry Toms, but this is unacceptable. This guy was spamming a few days ago... and he's still not been banned. Just not good enough.

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