4770k @5Ghz 0.9v (fake or no substance)

[wand3r3r]

Post here:
http://www.ocaholic.ch/modules/newbb/viewtopic.php?post_id=1038


ReHashed here:

An impressive overclocking achievement was spotted by Ocaholic.ch and shows a CPU-Z validation of Core i7 4770K overclocked to exactly 5005.83MHz at just 0.904V. As far as we can tell, Hyper-threading was disabled and it is not clear if the CPU is actually stable enough to run anything, but in any case, it is still an impressive result, especially at such low voltage.

http://www.fudzilla.com/home/item/31351-intel-core-i7-4770k-haswell-oced-to-5ghz-at-09v

 

[Fx1]

I wonder if we will see 5ghz on Air at 1v on retail chips.

This might just be the ticket for my next gaming rig.

 

[Unoid]

what? on LN2?

 

[Headfoot]

Wow, that's awesome. Just wish I could plop one in my 1155 board

 

[Phynaz]

Fake

 

[blackened23]

what? on LN2?

Why the heck would you need LN2 at .9V....

 

[Smoblikat]

Why the heck would you need LN2 at .9V....

In order for the proc to have such a low voltage for that clockspeed, it needs to be supercooled. That gives it less electrical resistance allowing less voltage to be needed since less is wasted.

 

[blackened23]

In order for the proc to have such a low voltage for that clockspeed, it needs to be supercooled. That gives it less electrical resistance allowing less voltage to be needed since less is wasted.

What?

All of the LN2 guys are using the range of 1-8-2.2V on CPUs. They go *up* with respect to voltage, not down.

The point of LN2 is to provide adequate cooling for parts with extreme amounts of voltage. This is exactly what happens at LN2 competitions, those guys use absolutely insane amounts of voltage that would immediately kill a part under normal usage.

 

[Smartazz]

In order for the proc to have such a low voltage for that clockspeed, it needs to be supercooled. That gives it less electrical resistance allowing less voltage to be needed since less is wasted.

Does this apply significantly at higher temperatures too, like closer to 60C?
Edit: I know this applies to superconductors, but idk about semiconductors.

 

[inf64]

This ain't going to happen, sorry. Voltages are displayed wrongly for Haswell and stability is not achieved even in SPI 1M (5+Ghz @ unknown voltage but surely more than 1.13V since this was needed for 4.5Ghz as can be seen in review).
Here is the link to the review .

However, we measured, the air-cooled overclocking 4.5G long-term stability is very difficult to, only 1.13V 4.5GHz frequency pager, easily exceed 90 ? C in the pursuit of the highest frequency of the air-cooled, 5.1GHz CPU-Z certification is still possible, but carried Super PI 1m test, for the sake of overheating causes blue screen. After much debugging, I found the hands of Fengyun i7-4770K processor to a minimum 1.13V voltage, CPU to 4.5GHz frequency stability by baking machine test by IntelBurnTest software; Also, with the 2400rpm fan of violence blessing, CPU each core under full load average temperature of 81.8 ? C, not suitable for daily long-term use.

Our with 1600rpm speed fan to suppress 1.13V i7-4770K processor clocked at 4.5GHz, core temperature is maintained at about 92 ? C, long-term use? Anyway, I would not dare.

Temperatures are very very high for air cooling. Gaming performance at 4Ghz, no difference in 19x12 with N660 Hawk (GPU limited). Both IB and 4770K @ 4Ghz, average perf. jump around ~5% without outlier like OpenGL in C11.5.

 

[Idontcare]

Fake

Seriously, I wonder how many more times we have to see "OCAHOLIC" watermarked CPUz "valid" threads before folks finally wise up and realize every single time they turn out to be fake.

It is almost like a litmus test of gullibility - raise your hand if you are gullible believe in yet another OCAHOLIC "to good to be true" claim so I know who to send my brother, the Nigerian prince, to talk about another sweet deal of a different kind!

 

[Idontcare]

Why the heck would you need LN2 at .9V....

What?

All of the LN2 guys are using the range of 1-8-2.2V on CPUs. They go *up* with respect to voltage, not down.

The point of LN2 is to provide adequate cooling for parts with extreme amounts of voltage. This is exactly what happens at LN2 competitions, those guys use absolutely insane amounts of voltage that would immediately kill a part under normal usage.

Lower operating temperatures enable lower Vmin (lower minimum required voltage) for stability at any given clockspeed.

The point being made by Smoblikat was that 0.9V at 5GHz might be plausible if extreme cooling were employed, a postulate which has some viability but I'd peg the likelihood at "slim to none".

 

[Grooveriding]

Bs. We saw the same trumped up nonsense pre SB and pre IB. It is not difficult to get your system to post at a high clock with a completely unstable overclock and run cpu-z.

 

[Smartazz]

Lower operating temperatures enable lower Vmin (lower minimum required voltage) for stability at any given clockspeed.

The point being made by Smoblikat was that 0.9V at 5GHz might be plausible if extreme cooling were employed, a postulate which has some viability but I'd peg the likelihood at "slim to none".

IDC, will the effect be so dramatic with GPUs too? That 3770K needs a lot less voltage at lower temps.

 

[Idontcare]

IDC, will the effect be so dramatic with GPUs too? That 3770K needs a lot less voltage at lower temps.

The temperature dependence is a function of a whole host of interacting parameters, including design, so I can't say out-right in blank check style that it would be comparably dramatic with GPUs, but if I were asked to take a bet with 50/50 odds then I'd say yes it is.

 

[Unoid]

What?

All of the LN2 guys are using the range of 1-8-2.2V on CPUs. They go *up* with respect to voltage, not down.

The point of LN2 is to provide adequate cooling for parts with extreme amounts of voltage. This is exactly what happens at LN2 competitions, those guys use absolutely insane amounts of voltage that would immediately kill a part under normal usage.

Black, lowering any electrical circuit temp will always assist in freq, ceteris parabis with the voltage.

But if you look past frivolous technical things, My point was that it smells like a large male cow defecated. Why be argumentative always?

 

[ShintaiDK]

Seriously, I wonder how many more times we have to see "OCAHOLIC" watermarked CPUz "valid" threads before folks finally wise up and realize every single time they turn out to be fake.

It is almost like a litmus test of gullibility - raise your hand if you are gullible believe in yet another OCAHOLIC "to good to be true" claim so I know who to send my brother, the Nigerian prince, to talk about another sweet deal of a different kind!

Exactly. I was just doing a faceplam when I saw it first and walked away. hoping the thread would just sink.

 

[ClockHound]

...with the 2400rpm fan of violence blessing

There's the problem with the overclock right there. IDC, refresh us, when you did your 3770k de-lid tests didn't you specifically state not to use 'fan of violence blessing' at 4.5Ghz?

 

[boxleitnerb]

Results like this are only believable if they show a simultaneously running program under full load like LinX or Prime or whatever, using all threads. Otherwise it's nonsense.

 

[wand3r3r]

Well that got debunked quickly, thanks for the dose of reality.

 

[Shmee]

Pity its fake, that would be one heck of a chip.

 

[NTMBK]

my brother, the Nigerian prince

You're royalty, IDC?!

 

[R0H1T]

I dunno, seems legit, they could be doing an experiment in Siberia or Antarctica for all we know to see how low they can go(pun intended) :biggrin:

 

[Idontcare]

There's the problem with the overclock right there. IDC, refresh us, when you did your 3770k de-lid tests didn't you specifically state not to use 'fan of violence blessing' at 4.5Ghz?

You do make a good point, one should do their best to avoid invoking the use of the "fan of violence blessing" unless it becomes absolutely necessary, say for instance when you are down to just a 1D20 roll whilst fending off a disrobed delidded level 29 Battlemage

 

[khg5293]

Does anyone know if this is real or not for sure?