First 4790k review, overclocking issues!

[Rafy]

So hexus.net published their review on the 4790k and they run into some pretty major overclocking issues.

 

It is reasonable to assume that overclocking plays a big part in considering this processor. However, our engineering sample exhibited unexpectedly poor overclocking potential, barely stable at an all-core 4.4GHz. We're awaiting retail samples before doling out advice on just how high the average Core i7-4790K is likely to go: stay tuned for that.

 

A word or two about temperatures: Intel says it is to use the same processor-in-box (PIB) cooler for this chip as for the 4770K. We used just such a heatsink during regular testing and found that, due to the extra power consumption generated by higher voltages, the Core i7-4790K ran hotter, at an average of 88C, compared to 78C for the older Haswell processor.

Hopefully this is just an issue with the specific sample and not of the whole Devil's Canyon series.

 

Source: http://hexus.net/tech/reviews/cpu/70473-intel-core-i7-4790k-devils-canyon-22nm-haswell/

[Jogostar]

lol: http://linustechtips.com/main/topic/161127-devils-canyon-4790k-goes-to-5-ghz-on-air/

[jezza39]

Well it is the same internally as Haswell, while heat may be less of a restriction on OCing with the new TIM, old limits from the silicon itself will still arise. 

[MegaDave91]

I'll stick with my 4670k @ 4.6 thank you very much...until Broadwell. 

[The Crazed Child]

I'll stick with my 4670k @ 4.6 thank you very much...until Broadwell. 

Not everyone is as lucky as you in the silicon lottery so yeahhhh

[TheDigitalRealm]

lol: http://linustechtips.com/main/topic/161127-devils-canyon-4790k-goes-to-5-ghz-on-air/

 

The Article is from WCCFtech...I would remain skeptical and wait for more reliable sources to confirm this.

[Lays]

just because they changed TIM doesn't magically mean every 4790k will hit 5 ghz, 

Idk why people got their hopes up so far.

[Bagmup]

just because they changed TIM doesn't magically mean every 4790k will hit 5 ghz, 

Idk why people got their hopes up so far.

Because magic...

[LukaP]

just because they changed TIM doesn't magically mean every 4790k will hit 5 ghz,

Idk why people got their hopes up so far.

Because they were comfortable enough to raise the out of the box speed to 4.0. So they must have sonehow improved the process, or have binned the chips higher, so more chance of a better overclock by default

[DavidTheWin]

Because they were comfortable enough to raise the out of the box speed to 4.0. So they must have sonehow improved the process, or have binned the chips higher, so more chance of a better overclock by default

 

I think what's more likely is that the new TIM made all the previous bad chips suddenly able to go much further, but didn't do much for the ones that were already really good. So when it came down to altering clocks, they felt comfortable upping to a 4GHz base cutting into the increased overhead. This would mean that people would achieve higher overclocks in general (say 4.4/4.5 than 4.2/4.3) but it would be less substantial an overclock compared to the base clocks than previously.

[LukaP]

I think what's more likely is that the new TIM made all the previous bad chips suddenly able to go much further, but didn't do much for the ones that were already really good. So when it came down to altering clocks, they felt comfortable upping to a 4GHz base cutting into the increased overhead. This would mean that people would achieve higher overclocks in general (say 4.4/4.5 than 4.2/4.3) but it would be less substantial an overclock compared to the base clocks than previously.

This may also be possible, but you have to know thar even dellided haswels werent guaranteed to hit 4.5, so something had to change

[Lays]

Because they were comfortable enough to raise the out of the box speed to 4.0. So they must have sonehow improved the process, or have binned the chips higher, so more chance of a better overclock by default

 

 

It's more likely that with cooler temperatures they saw fit to up the clock speeds.

 

 

@Faa or @ProKoN has a list of like 1000 haswell overclocks, most of em hit atleast 4.4 from what I've seen if I remember right.

[LukaP]

It's more likely that with cooler temperatures they saw fit to up the clock speeds.

refer to one post up

[Lays]

refer to one post up

 

editted my post too

[deathjester]

So hexus.net published their review on the 4790k and they run into some pretty major overclocking issues.

Hopefully this is just an issue with the specific sample and not of the whole Devil's Canyon series.

 

Source: http://hexus.net/tech/reviews/cpu/70473-intel-core-i7-4790k-devils-canyon-22nm-haswell/

 

Voltage looks similar to my 4770k for those speeds. I am at 1.15 for 4.3, 4.5 at 1.22v.

 

This is what concerns me.

 

"A word or two about temperatures: Intel says it is to use the same processor-in-box (PIB) cooler for this chip as for the 4770K. We used just such a heatsink during regular testing and found that, due to the extra power consumption generated by higher voltages, the Core i7-4790K ran hotter, at an average of 88C, compared to 78C for the older Haswell processor".

 

So basically 1.3v is still going to be "safe" most likely (just like a 4770k)  and these are just high binned chips so you don't get 4.1-4.3 clunkers on water cooling at 1.3v, and if you got lucky on a 4770k you basically got a "devil's canyon".

 

Good for enthusiasts I guess, but not what I was hoping for.

 

​Also anyone that runs these on a stock cooler = insane. 

[Lays]

Voltage looks similar to my 4770k for those speeds. I am at 1.15 for 4.3, 4.5 at 1.22v.

 

This is what concerns me.

 

"A word or two about temperatures: Intel says it is to use the same processor-in-box (PIB) cooler for this chip as for the 4770K. We used just such a heatsink during regular testing and found that, due to the extra power consumption generated by higher voltages, the Core i7-4790K ran hotter, at an average of 88C, compared to 78C for the older Haswell processor".

 

So basically 1.3v is still going to be "safe" most likely (just like a 4770k)  and these are just high binned chips so you don't get 4.1-4.3 clunkers on water cooling at 1.3v, and if you got lucky on a 4770k you basically got a "devil's canyon".

 

Good for enthusiasts I guess, but not what I was hoping for.

 

​Also anyone that runs these on a stock cooler = insane. 

 

 

Tbh 1.22v isn't even high at all (actually quite good for 4.5 I think)

 

I'll be getting a 4790k soon, hopefully it hits close to 5, that'd make the enthusiast side of me very happy

 

Honestly I'd be comfortable using 1.5v maybe, because even if it dies, the chip doesn't really cost much in the first place, compared to the 3930k I have now.

[The_Strict_Nein]

Tbh 1.22v isn't even high at all (actually quite good for 4.5 I think)

 

I'll be getting a 4790k soon, hopefully it hits close to 5, that'd make the enthusiast side of me very happy

 

Honestly I'd be comfortable using 1.5v maybe, because even if it dies, the chip doesn't really cost much in the first place, compared to the 3930k I have now.

 

I guess getting a really expensive chip puts a new perspective on less expensive ones

[Lays]

I guess getting a really expensive chip puts a new perspective on less expensive ones

 

 

It's expensive for others I suppose, it's still quite a bit of money, but 2 4790k's is almost what my single 3930k cost new, so it's not "as bad" I suppose.

 

 

Honestly IDK why I bought 2011 in the first place, I barely even use it

[cluelessgenius]

It's expensive for others I suppose, it's still quite a bit of money, but 2 4790k's is almost what my single 3930k cost new, so it's not "as bad" I suppose.

 

 

Honestly IDK why I bought 2011 in the first place, I barely even use it

we get it. you`re shitting money, stop bragging

[The_Strict_Nein]

It's expensive for others I suppose, it's still quite a bit of money, but 2 4790k's is almost what my single 3930k cost new, so it's not "as bad" I suppose.

 

 

Honestly IDK why I bought 2011 in the first place, I barely even use it

 

If your hobby is computers it's no less than you would spend on lessons in another hobby like dancing or something over the course of a year and it'd last much longer. The 3930K should be good for another 2 or 3 years or more.

[Lays]

we get it. you`re shitting money, stop bragging

 

 

Where am I bragging...?

[Bagmup]

Where am I bragging...?

Your avatar shows you drying your ass after shitting out a tonne of money.

[thewhitestig]

The Article is from WCCFtech...I would remain skeptical and wait for more reliable sources to confirm this.

The source is actually overclock.net forums. WCCF just reported it first. Check out the competition live. http://hwbot.org/competition/intel_occ_computex14/ In the air/liquid cooling category the fastest frequency achieved is 5.4 GHz. 

[ThePackman99]

Well I barely got my 4790K stable at 4.7GHz, to get there I had to use voltages higher than what I would usually be comfortable with (1.377V).

 

I'm not sure if I just got a crappy chip or if they are all like that. I have to complement the stock TIM, at that voltage using a Kraken X60 with stock fans and Arctic Silver MX-4 thermal paste. Tempretures never got higher than 85C when running OCCT. 

[brownninja97]

Well I barely got my 4790K stable at 4.7GHz, to get there I had to use voltages higher than what I would usually be comfortable with (1.377V).

 

I'm not sure if I just got a crappy chip or if they are all like that. I have to complement the stock TIM, at that voltage using a Kraken X60 with stock fans and Arctic Silver MX-4 thermal paste. Tempretures never got higher than 85C when running OCCT. 

how dare you necro this thread