Intel Devil's Canyon: The Good, the Bad, the Ugly @ [H]

SeanJ76

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Jun 6, 2014
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I have had no problems getting a huge OC out of my Devils Canyon 4690k. 4.8ghz@1.32Vcore, 4.9@1.36Vcore. I think some of you aren't buying proper overclocking boards, and that's why your not hitting the suggest clock speeds that Intel itself, has tested and come up with. Don't buy a $150 board and expect a 5.0ghz overclock.......they're tons of Z97 decks that are utter and complete garbage.
 

Advil

[H]ard|Gawd
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I would like to remind readers after 20 pages of discussion about "The GOOD":

The STOCK clock and boost speeds of the 4790k are all by themselves pretty darn [H] even without overclocking. The thing sits in a class out there by itself right now.

It is just plain fast. Same price as the 4770k was and 400mhz base faster with another 400mhz boost.

So let's not be TOO down on it...

The only real disappointment is to those that aready have 4770k CPUs and were hoping for a big OC improvement but if you are in the market to replace an older system right now? What a great time!

I'm even happier sitting on this CPU for a while after seeing the Haswell-E numbers and price. As if the procs and motherboards aren't expensive enough, the DDR4 RAM is just enough to make a man depressed.
 

Sunin

[H]ard|DCer of the Month - August 2008
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L421B956. It hits 4.6 without even trying, temps hit 42c at that oc, have not primed it as I'm still in patch hell installing win 7

Ok so it's bouncing around 4.3 at 1.2v with prime 95 on short, temp 88, was a touch surprised with those temps at that voltage I may try to twist the cooler (attic freezer13) to make sure it is seated.

Need to figure out how to force this CPU to stick to an oc, I mean it used to be disable speedstep, will go hunt what it is now. Wow 4 settings for throttling now! So I take it the. The key with this CPU is to keep it under 88c as it seems to throttle at that temp, I'd like to raise that a bit. With all variants of speedstep, cst ate, turbo, etc off I have it at 4.4ghz 1.16v 86c stable on prime it doesn't budge.

The processor posts to 5ghz at 1.3 but then throttles to 4.1-4.2ghz due to heat... So I thought I'd find the highest voltage I can stay below 88c first then try to max the clocks at that voltage to see if I can get 4.5 or 4.6 without throttling. To me 5ghz throttling is useless, I'd rather have 4.6 with no throttling hopefully... Time to see what she can do
 
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AFD

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L421B956. It hits 4.6 without even trying, temps hit 42c at that oc..

So I take it the. The key with this CPU is to keep it under 88c as it seems to throttle at that temp, I'd like to raise that a bit.

Throttling shouldn't happen at all until it hits ~100C (check your 4-core temps with RealTemp). You can run AIDA64 stress test with FPU-only checked, and if it starts throttling, it will immediately say so.

My L421 4790k seems pretty good so far. Still stock, but temps are a few degrees cooler, both at idle and at load, vs my stock 4770k.
 

Sunin

[H]ard|DCer of the Month - August 2008
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Throttling shouldn't happen at all until it hits ~100C (check your 4-core temps with RealTemp). You can run AIDA64 stress test with FPU-only checked, and if it starts throttling, it will immediately say so.

My L421 4790k seems pretty good so far. Still stock, but temps are a few degrees cooler, both at idle and at load, vs my stock 4770k.

Thanks I'll check it out
 

Zuhl3156

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Jun 30, 2014
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Thanks I'll check it out

It might be some of those power settings like 'Long Duration' and 'Short Duration' Power Limits. I had to override my max wattage to 180 on both Long and Short Duration along with increasing the amount of time for each. I had weird throttling like problems until I changed those values. My last build was a MSI Z77A-G45 Gaming with a 2600k so all of these new BIOS settings are strange news to me.
 

Yarp

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Well after working with around 30 i7 4790ks I have to say they are the most inconsistent junk Intel has put out. First off none of the processors on UEFI defaults would turbo to 4.4 using prime or lynx with out running the tests on a single thread and setting affinity in the task manager. So 4.4 my ass. About 10 of the proc wouldn't even run prime95 on any setting for more than a few seconds on defaults with out 124 BSODs. I am not a hundred percent on this yet but I was able to get most of them working by shimming the socket latch so it would apply more pressure to the chip. To be fair this could just be a problem with Asrocks socket on the z97 Extreme 6, z97x killer and z97 pro 4. All of the chips ran rather hot. Around 75-80c. That's a Lot of heat for be on UEFI defaults and it's not even hitting the advertised 4.4. As you can see the idea of over clocking this seems a bit impossible but I did try. I was able to get a stable 4.6 on most of the chips. But heat was still a big problem and I had to use the power planes to get them to run any testing which would clock the chip down to 3.9 after 32 seconds. I am wondering if any one else has had any issues like this and if they have any suggestions on getting these chips to at least run stable and cool at stock clocks I will worry about OC later

Here is a list of the components I am using.
Cooler= Noctua NH-U12S
CPUs= i7-4790K
Mother Boards= Asrock Z97 Extreme 6, Asrock Z97X Killer, Z97 Pro 4,
Memory= Hynix 1333 9 9 9 24
Video card= EVGA Nvidia 610
Storage= Samsung 840 EVO 120gb
 

FrgMstr

Just Plain Mean
Staff member
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I think what you are seeing is very normal for the 4790K. Also keep in mind that 4.4GHz is only specified on Turbo loads of 1 thread. And the Noctua is not going to keep up with the heat running full on all cores unless you have a lot of cool airflow across it.
 

xorbe

Supreme [H]ardness
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Sep 26, 2008
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I'm sure they aren't pumping out 10 per 30 that fail to run p95, have a look at that motherboard.
 

SeanJ76

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Jun 6, 2014
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I don't know why people buy HT cpu's and then complain about the heat issue.....should of bought a 4690k if you wanted a nice overclock......
 

Parja

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I have had no problems getting a huge OC out of my Devils Canyon 4690k. 4.8ghz@1.32Vcore, 4.9@1.36Vcore. I think some of you aren't buying proper overclocking boards, and that's why your not hitting the suggest clock speeds that Intel itself, has tested and come up with. Don't buy a $150 board and expect a 5.0ghz overclock.......they're tons of Z97 decks that are utter and complete garbage.

I don't know why people buy HT cpu's and then complain about the heat issue.....should of bought a 4690k if you wanted a nice overclock......

It's hardly that black and white. I've got a 4690k that I've tried on a Maximus VI Gene and a Gigabyte Z87MX-Gaming 5 and it seems to be a bit of a dud on either board. It takes about 1.30V for 4.5GHz and 1.36V isn't even enough for 4.6GHz. And with my H100 in push/pull, temps are pretty good, so it's not a thermal issue.
 
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Squall_Rinoa89

Limp Gawd
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May 4, 2011
Messages
411
Recently bought a i5 4690K.. I'm quite happy with the stock settings actually on my ASUS Maximus VII Hero motherboard.

Here's to hoping later on people will be able to tell which are good samples and which arent. I'm interested on overclocking but have no idea how to do it on K chips.

This is all a new territory.
 

LigTasm

Supreme [H]ardness
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Jul 29, 2011
Messages
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I recently picked up a 4690k and Maximus VII Hero as well, my chip seems to be pretty good. Right now I've dialed in a mild overclock to 4600mhz at 1.150V, completely stable with 2400mhz RAM. I don't know if I want to try and push for more or not because my temps are really good, hottest core maxes out at 70*C in synthetics with a Glacer 240L.
 

Zuhl3156

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Jun 30, 2014
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Recently bought a i5 4690K.. I'm quite happy with the stock settings actually on my ASUS Maximus VII Hero motherboard.

Here's to hoping later on people will be able to tell which are good samples and which arent. I'm interested on overclocking but have no idea how to do it on K chips.

This is all a new territory.

Here is the guide I used for my 4790k: http://www.overclock.net/t/1411077/haswell-overclocking-guide-with-statistics
I knew how to OC an unlocked 'k' series from my 2600k but Haswell has a ton of settings that Sandy Bridge did not.
 

Zuhl3156

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Jun 30, 2014
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Quite appreciative for such Link. Kudo's. Going to play around with it and see how it is.

I've read a lot about degradation from too much voltage and that's what scares me from going higher with my OC. I could run 4.7 GHz at the same 1.260v but would get a BSOD 124 after launching a game. After backing down to 4.6 GHz I was stable for a few weeks before I started getting more BSOD 124 issues. I had to nudge it up to 1.263 to keep it stable and I've needed no more voltage increases since then. After I get a full custom water loop I might set my vCore at 1.35 and see how high I can go.
 

lodian

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Oct 20, 2014
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I recently switched over to a 4790k after sporting AMD (FX-8350) for about a year and I couldn't be happier. Just a far superior processor on all accounts. Even with a modest overclock, everything is stable, snappy and consistent. Also, the current BIOS for Asus on the new 1150 boards are just fucking amazing compared to anything else I've ever used.
 

Riccochet

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Meh...I bought a 4690k and dropped it in my rig. It overclocked ok, but I really didn't notice much of a difference. Sold it to my neighbor for his build. Honestly, I don't even overclock my 4670k any more. It's just wasting electricity. At stock the chip does everything I need it to do quite well.
 

Zuhl3156

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Jun 30, 2014
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I don't notice any difference from my 2600k at 4.5 GHz. I even had less problems with my Z77 and 2600k. I only bought a 4790k because I fell for the 5.0 on air hype. I am seriously disappointed with myself for making such a foolish mistake. My 2600k could run solid at 4.8 GHz and that could probably hit 5.0 if I cranked the vCore up more than I am comfortable with.
 

Vatican

Weaksauce
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Nov 30, 2014
Messages
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Trying to figure out a stable OC for my 4790k myself, these things seem to never want to go above 4.8 but will stay stable at 4.7.
 
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UnrealCpu

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just picked up a vietnam batch 4790k week 37

I am rock stable at 4.8 and can boot into windows at 4.9 and 5ghz.. However because unstable during encoding benching at 4.9 at 1.35v. So i backed it down to 4.8 offset voltage .130+ and with 10 hard drives, other digital media equipement and accessories , 2x GTX 980 , 10 port USB hub3.0 charging and 2 x 27" monitors i am idling at 216watts , ocnce the monitors and speakers turn off and i run plex , i get 143watts idle. Max offset voltage when using encoding or benching the cpus hard goes up to 1.4v with my new kraken x61 it doesnt even hurt my temps, 33c idle, 66 c load.
Loving this kraken pump and design much better than the H110 i used to own....

Also i used to own a Malaysia chip 4790k it was junk, temps fluxuating , eventually had to run it at 4.6 vs 4.7 . Go get the X "Vietnam" batch its a much better chip.
 

Voxata

Limp Gawd
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Feb 9, 2015
Messages
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My 4790k results were..sad at first. At 4.4Ghz 1.15 I would hit 100C during IBT/Prime small fft =\ I delidded today and OCCT/Prime (only a 30small hit, I don't like prime much)/RealBench/IBT runs maxed out at 80C during the prime, 70C and under for all other tests. 4.8Ghz 1.32v. Don't think I'll push it further, I'm sure the 4.9Ghz will be begging for 1.35 which is my personal limit. I'm pretty happy w/the chip now.. though, I wonder if I should be using Offset of Fixed voltage. However, when load is light the voltage scales down to 0.3-4 according to CPUz so.. perhaps my board is already taking care of things.
 

Kosta

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Feb 26, 2012
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I am using the (old) Flight Simulator X and somewhat newer Prepar3D v2.5. Both these sims have the same base code, in which only one CPU core is used for rendering and main display, meaning FPS are usually terrible when using complex aircraft (sub 30fps).

If I would change from 2600K -> 4790K, and make the same overclock (4.7Ghz), how much faster would 4790K be? Any ideas?
Btw. cooling is a custom water-cooling.
 
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Kaisei

Weaksauce
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Mar 13, 2015
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I still have not touched the oc for my 4790k.. I'm hoping I didn't get one of the bad ones..
 
Joined
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I am using the (old) Flight Simulator X and somewhat newer Prepar3D v2.5. Both these sims have the same base code, in which only one CPU core is used for rendering and main display, meaning FPS are usually terrible when using complex aircraft (sub 30fps).

If I would change from 2600K -> 4790K, and make the same overclock (4.7Ghz), how much faster would 4790K be? Any ideas?
Btw. cooling is a custom water-cooling.

10% faster at the same clocks. So for example if you were getting 30 fps you will now get 33 fps. If you are on old slow memory you may get another 2-3 fps by bumping up to 2400 or 2133mhz ram with tight timings. So yeah, around 5 extra frames. Not all that fantastic but it's something.

Just got a 4690k myself and rock solid so far at 4.7, slight instability at 4.8 but I'm sure I can dial it in. 4.9 at this point seems like not gonna happen.

voltage is 1.32v vcore
1.9 vrin
1.2 uncore/cache ratio (clocks lower than core at 44x)
 

UnrealCpu

2[H]4U
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went from a 2500k, 3750k to a 4790k and all have been a nice bump in speed

I like the fact that the 4790k or the core i5 version haswell has a very nice bump in speed using the dolphin emulator to play wii "backup" games. Since intel has the best dual core processing speed it will destroy anything AMD has when it comes to dual core processing and you will see this in other emulation type programs such as PCX2 when playing "backups".
 

Compddd

[H]ard|Gawd
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I just built a new system around a 4790k and a Noctua NH-U12S cooler. I don't plan to overclock, should I be ok temps wise? Using a FT05 case so it has those big 180mm fans blowing air directly over the CPU.

Also when I'm in UEFI checking temps/settings is my CPU running at full speed?
 
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Brian_B

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I just built a new system around a 4790k and a Noctua NH-U12S cooler. I don't plan to overclock, should I be ok temps wise? Using a FT05 case so it has those big 180mm fans blowing air directly over the CPU.

Also when I'm in UEFI checking temps/settings is my CPU running at full speed?

More than OK temp-wise.

In the UEFI, usually it's not running at full speed (although some BIOS have a setting for that), and it's certainly not under any load, so your just seeing a baseline idle temp there.
 

Compddd

[H]ard|Gawd
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Ok I was seeing a temp of 40C last night in UEFI after firing up the new system and was concerned.
 

crewzen

Gawd
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I have been using this processor and the new board for some time now. Asus Maximus VII Hero mobo. Not impressed at all. Boot up is very slow and I wait looking at the desktop while it loads the start up programs. Over clocking at 4.6Ghz with a Swift tech H240X seems to cool OK. But this expectation of a new cpu is exploded. Not what it should be. My 4770K is much faster all around. Sorry Intel this is just a stock cpu at sub normal speeds.:mad:
 

Kardonxt

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I just upgraded my 2550k @ 4.8 to a 4790k @ 4.6. My fire strike score only jumped about 3k. Not really all that impressed. IMHO if anyone has a second gen i series cpu with a decent overclock or better there is no reason to upgrade. In some strange cases like the poster above me I could see it being worth while but in pc games you're probably talking about single digit fps differences.

I'm waiting for my new water block to delid and get the OC up higher but realistically I doubt 200mhz is going to change much.
 

Zarathustra[H]

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I have been using this processor and the new board for some time now. Asus Maximus VII Hero mobo. Not impressed at all. Boot up is very slow and I wait looking at the desktop while it loads the start up programs. Over clocking at 4.6Ghz with a Swift tech H240X seems to cool OK. But this expectation of a new cpu is exploded. Not what it should be. My 4770K is much faster all around. Sorry Intel this is just a stock cpu at sub normal speeds.:mad:

This doesn't sound like a problem with the CPU at all. unless a CPU is ridiculously slow, it has very little impact on boot speeds.

Boot up times are more dependent on drive speeds and how much RAM you have.

If the drive and ram is equivalent between the two machines, it sounds to me like a driver issue or OS corruption issue. It COULD possibly also be caused by a poorly mated cooler, causing excessive heat throttling on the CPU.

You DID do a clean Windows install, downloading all the latest relevant drivers from the manufacturers websites, right?

Recent versions of windows CAN miraculously detect completely new hardware, even when swapping motherboards and CPU's and sometimes it just works, but sometimes it doesn't.

Also, drivers included with Windows or on CD's in motherboard manufacturers boxes are usually notoriously outdated.

If I had to guess based on the little information you have provided, your issue is likely a bad driver on a motherboard based storage controller. if that isn't the case, i'd suspect a poorly mated cooler.

Now, all that being said, I wouldn't expect this system to be a major improvement over what you already had, though I am not familiar with the firestrike benchmark (it's not one I use) so I can't comment on it specifically. Intel hasn't done major improvements over the last few several years. I would expect small improvements, but certainly nothing slower. if it is slower, something is wrong.
 

crewzen

Gawd
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Cooler running at 25 Deg Cel. Samsung 940 Pro SSD drives all around Asus 290x, g-Skill 2166 speed 32GB memory. Seasonec 1200x psu, I know every one will say something is wrong but everything seems to be running like it should. Just a slo cpu.
 

Domingo

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Was "forced" into an upgrade when my 3770K mobo died and replacing it cost more than one of these and a new mobo.

Being somewhat unfamiliar with this chip, it looks like turbo sets it to 4.4ghz and allows me to turn on XMP. Is there a downside to using turbo to hit that speed or is it more or less the same as setting the multiplier myself? I don't really have a reason to go for a serious overclock as I don't know if anything I do would benefit.
 

Compddd

[H]ard|Gawd
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Most people say the stock setting of 4GHz + Turbo of 4.4GHz is plenty for whatever is they are doing.
 

Domingo

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Most people say the stock setting of 4GHz + Turbo of 4.4GHz is plenty for whatever is they are doing.

That was my thought thus far. It also runs rather cool at that setting. In the 20's most of the time. My H100 doesn't even sounds like it's on until Prime95 has been running wide open for 4-5 minutes.
I think I'm just going to stick with it.
 

UnrealCpu

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I just upgraded my 2550k @ 4.8 to a 4790k @ 4.6. My fire strike score only jumped about 3k. Not really all that impressed. IMHO if anyone has a second gen i series cpu with a decent overclock or better there is no reason to upgrade. In some strange cases like the poster above me I could see it being worth while but in pc games you're probably talking about single digit fps differences.

I'm waiting for my new water block to delid and get the OC up higher but realistically I doubt 200mhz is going to change much.

i would have to disagree, going from a z95 to a z97 was a very nice upgrade. When you resell your components every year it should not cost you more than 100-150 bucks for a nice 10%+ speed bump

coming from a 3570k
to a 4790k at 4.8 and even at 4.7 the improvement is noticeable
 

UnrealCpu

2[H]4U
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when you run 2560x1440p and have kick ass video cards like a GTX 980 in SLI or running emulators that just use processing power , it makes a difference. Plus overclocking to 4.7 is easy when using a good AIO cooler from corsair or kraken.

Sounds like you might want to stick to AMD since they are cheap processors with mobos that are good and will get the job done.

personally the way i see it when buying both brands now AMD and Intel is would you rather drive a Honda/KIA for the next year or two or a Acura/infiniti?

intel to me has alot more horsepower and is a better quality product but costs a bit more
 
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