i7-4790k + (what cooler) = good OC?

[FireFox]

you should really only expect 4.6-4.7 GHz for 24-7

That's right, but i think that 4.9Ghz 1.30v wouldn't be worst and temperatures doesn't go above 60c.
Of course having a delidded CPU is a big advantage to keep temperatures no too high.

Note: I have hit 5.3Ghz 145v but i still have to do an accurate stability test before i can say that it's 100% stable.

 

[cadaveca]

That's right, but i think that 4.9Ghz 1.30v wouldn't be worst and temperatures doesn't go above 60c.
Of course having a delidded CPU is a big advantage to keep temperatures no too high.

Note: I have hit 5.3Ghz 145v but i still have to do an accurate stability test before i can say that it's 100% stable.

Delidding is not something I recommend as it invalidates warranty. Changing the TIM interface between IHS and CPU die prevents the fail-safes built into the CPU from working properly and can lead to unexpected problems in domains of the chip where temperature monitoring is not provided, such as the FIVR, VCCSA, I/O and cache domains. If you've delidded, then sure, 5 GHz is possible. It's not supposed to be except in the rare occasion of an superior CPU, as the current draw required to push this clock can cause damage in a large percentile of retail CPUs. IF Intel could have soldered IHS and presented higher clock speeds, the would have, and simply charged you for it. The idea that the TIM used was to save on CPU costs is silly... it was done for an entirely different reason... safety and longevity of the product, and acceptable yields.

 

[FireFox]

My goal is to play ,
I wonder my safe v4 5 mhz good

That's what @Kursah recommend: If you feel you need to increase gaming performance, which for most is usually FPS piped to the screen, then the GPU is what you should target.

 

[FireFox]

Delidding is not something I recommend as it invalidates warranty. Changing the TIM interface between IHS and CPU die prevents the fail-safes built into the CPU from working properly and can lead to unexpected problems in domains of the chip where temperature monitoring is not provided, such as the FIVR, VCCSA, I/O and cache domains. If you've delidded, then sure, 5 GHz is possible.

The warranty is the last thing i worry about, is something goes wrong due to a wrong Overclock or becasue I have delidded the CPU then I just replace the CPU and problem solved, I have Overclocked my 3770k to 5.0Ghz 138v before the CPU was delidded it but temperatures were too high if I am not wrong 70c/75c when doing stability test, that's why i didn't think twice and I delidded and after that temperatures dropped 20c, so far I am very happy with the results, how long can my 3770k handle? I don't know and I don't worry to know it.

 

[GreiverBlade]

What Maximo I can handle clock with i7 4790k is no problem? that Chi dayz play to me the level fps with average video card

eh? you know that CPU clocking mostly give near nothing to null fps improvement if the GPU remain the same? (at last in all game except MMO and RTS ) and it explain also why a i5 4690K (4670K) or non K are way enough for games over a i7 4790K and give quite similar result (again not MMO/RTS but the difference is minor plus not a lot of games use more than 4 core so the HyperThreading is not a major advantage)

IE: if i keep my 290 @ 1150/1500 and my 4690K @ 3.5(stock) in most of my games i get 65-80fps if i push the 4690K to 4.4-4.5 i get 66-81 fps (quite the improvement) ofc, as i use Blade and Souls as a exemple, when i move to a more crowded place i get less fps drop than when i am alone.

now for a 5ghz 24/7 : useless, little to no improvement, that kind of frequencies and above are more for enthusiast or bench addict, @4.4 my 4690K has enough juice to keep up with anything. (ofc i will try to get higher but ... not for seeing improvement or gain, as they are not worth the hassle)

 

[FireFox]

4.4 my 4690K has enough juice to keep up with anything.

Well said.
4.4Ghz or 4.5GHz with the lowest voltage that can be applied are enough.

 

[gnflag]

Games How Dayz and Weapon 3 , i5 vs i7 Having imais HyperThreading does best difference? I read this forum

 

[GreiverBlade]

Games How Dayz and Weapon 3 , i5 vs i7 Having imais HyperThreading does best difference? I read this forum

hyperthreading : no big difference in games, except some heavily multithreaded RTS and some i forgot the name, who use more than 4 cores but you can count them on the fingers of one hand ...

short: game i5 4690K = i7 4790K no big differences

oh wait i did already answer that question ... before it was asked

(again not MMO/RTS but the difference is minor plus not a lot of games use more than 4 core so the HyperThreading is not a major advantage)

gaming : i5 4xxx is enough, no real argument in paying more for a i7 unless you want to (i could go i7 4790K but i decided that the i5 4690K was enough)
crunching/encoding/streaming massively : i7 4xxx/5xxx

 

[OneMoar]

Delidding is not something I recommend as it invalidates warranty. Changing the TIM interface between IHS and CPU die prevents the fail-safes built into the CPU from working properly and can lead to unexpected problems in domains of the chip where temperature monitoring is not provided, such as the FIVR, VCCSA, I/O and cache domains. If you've delidded, then sure, 5 GHz is possible. It's not supposed to be except in the rare occasion of an superior CPU, as the current draw required to push this clock can cause damage in a large percentile of retail CPUs. IF Intel could have soldered IHS and presented higher clock speeds, the would have, and simply charged you for it. The idea that the TIM used was to save on CPU costs is silly... it was done for an entirely different reason... safety and longevity of the product, and acceptable yields.

you seem awfully sure of that dave using the TIM under the IHS has a limiter is just as silly as saving costs on TIM ... intel could have just as easily gone with a mirco-code update to cap the voltage at 1.25v whith is far harder to work around .
lowering temperatures increases the tolerance for higher amperage .. and you know that so I am unsure why you keep telling people that terrible tim wasn't a cost/time saver ...
the whole idea that intel would be concerned over possible damage due to overclocking is a bit silly when they offer the tuning protection plan ... and chip life span is a non issue when not overclocking
I think it was more todo with a change in manufacturing process for it being the first implementation of FIVR and they needing to pull chips for testing after they where on-package or late in the production line after the IHS would have normally been applied

 

[cadaveca]

I think it was more todo with a change in manufacturing process for it being the first implementation of FIVR and they needing to pull chips for testing after they where on-package something they can't do if they solder it

Haswell-E has FIVR with nearly twice the power limit, and is soldered. So...interesting idea, but incorrect.

Intel actually takes OC more seriously than you think, and also thinks about catering to those with extreme cooling and LN2 benchmarking habits. Most of these guys work at partner firms, and help sell chips, after all. It's about marketing and profits, and ensuring that they can capitalize on their products in the most efficient way.

 

[OneMoar]

Haswell-E has FIVR with nearly twice the power limit, and is soldered. So...interesting idea, but incorrect.

Intel actually takes OC more seriously than you think, and also thinks about catering to those with extreme cooling and LN2 benchmarking habits. Most of these guys work at partner firms, and help sell chips, after all. It's about marketing and profits, and ensuring that they can capitalize on their products in the most efficient way.

it just doesn't make sense they would use that method there are far more "secure" ways they could have gone about it
haswell-e also has a much beefier FIRV as well as more contacts and we know some of them are dedicated to testing so maby it was a diagnostic related thing and they changed it on the LGA 2011 chips so they could get it from the bottom ..
the problem I see is that nobody has done any extended testing at >1.30V to get a clear idea of what the absolute limit is I have seen people push >1.4 for quick benching but nothing sustained ... what we need are a few volunteers to delid there chips and cram a bunch of voltage down them and see how long they last

 

[xvi]

I don't think anyone has recommended a cooler yet. Best value is usually attributed to the Hyper 212 Evo. For AIO water coolers, you generally won't see improvements over air until 240mm or more. AIO coolers are generally what people consider to be "decently good". If you want to push for above average overclocks 24/7, go for custom water or sub-ambient.
Other people will likely say otherwise and, honestly, I'd trust them more than me. I went for custom water just because I wanted big clocks on my FX 8350, but I didn't get much cooling over my Xigmatek S1283.

 

[FireFox]

what we need are a few volunteers to delid there chips and cram a bunch of voltage down them and see how long they last

I am the first Volunteer.

 

[OneMoar]

I am the first Volunteer.

I know lol

 

[GreiverBlade]

I don't think anyone has recommended a cooler yet. Best value is usually attributed to the Hyper 212 Evo. For AIO water coolers, you generally won't see improvements over air until 240mm or more. AIO coolers are generally what people consider to be "decently good". If you want to push for above average overclocks 24/7, go for custom water or sub-ambient.
Other people will likely say otherwise and, honestly, I'd trust them more than me. I went for custom water just because I wanted big clocks on my FX 8350, but I didn't get much cooling over my Xigmatek S1283.

in fact it was answered since the 2nd post but let's add some serious HSF
Thermalright HR-02 Macho Rev.A,
Scythe Ashura,
Raijintek Ereboss,here you go 3 of them and all king in the value/perf category

the Hyper 212 is just too ... small ... ok the price/perf ratio is good but not good as the 3 i mentioned time to ditch definitively those cheap build (sorry i find it cheap ... just worth the price asked) cheap price CM air cooler, i can't help it i hate them xD

AIO well the Nepton 240/280 line is good (corsair? nope... and yes i know why ... i had 4 Corsair AIO only the last one had no problems, and they are overpriced ... any other brand are cheaper) in 240 the one from Deepcool and Raijintek are good too.
but AIO over custom loop? never (i used AIO because i was a bit frisky about doing a loop but not anymore and a 290 @1150/1450 29-30° idle 38-46° gaming is priceless)

custom waterloop : hum well ... it's still the top idea for a clocker and a 24/7

but still none of these solution are for a 5ghz 24/7 (and not because they couldn't cool it but because 5ghz 24/7 is pointless.)

 

[FireFox]

5ghz 24/7

I wouldn't run my Machine even for a week at 5.0Ghz, albeit I have a good watercooling setup.

 

[hat]

The 4790k will turbo to 4.4. It can only be overclocked to 4.6-4.7 safely/reliably? What's the point in that?

 

[FireFox]

The 4790k will turbo to 4.4. It can only be overclocked to 4.6-4.7 safely/reliably? What's the point in that?

that's the same question that I made myself, I'm still looking for a logical response

 

[hat]

At least on Newegg, the 4770k and 4790k are the same price. If you're upgrading to the 4770k may as well just get the 4790k.

The performance increases seem to be becoming quite stagnant. Bloomfield -> Sandy Bridge seemed the last really good one.

 

[cadaveca]

The 4790k will turbo to 4.4. It can only be overclocked to 4.6-4.7 safely/reliably? What's the point in that?

IT's still the older Haswell CPU, just a new PCB. the older 4770K is often stuck @ 4.4 or less, commonly 4.3 GHz, so they made a cpu that at stock, goes above the limits that many 4770K have.

All Intel CPus have the same clock speed limits, in general, since the core design is functionally the same. 2600K, 3770K = die shrink; 3770K, 4770K, = moving voltage regulation into CPU and iGPU/cache improvements; 4770k,4790k = PCB change to provide added power (which also needs a Z97 board to take full advantage of, since z87 and z97 are the same physically, except for VRM change on boards, and inclusion of new drive connectors)...

So, why would you think it would clock any faster, exactly? where's the magic that changed that? Higher stock speed just means they changed binning process to get these chips reliably for that speed at stock, and Intel has said that this is exactly the case. Check Newegg's video with Intel about this on youtube, Intel rep says this quite clearly that they changed how they source CPU for Devil's Canyon to reliably have parts that clock better than other Haswell CPUs...within that 90W power design.

Intel is pretty honest and open about this. Many users were mad about 4.3 GHz limit on OC, 4790K removes that limit. You expect more from a PCB change, and specific binning, on same CPU design? only the "K" chips get this PCB, TIM, and binning, and the best they could do was 400 MHz more? Yeah...and it took that TIM change, that PCB change, and binning to do so. All that, just 400 MHz... All that...just for those that like to OC.

However, this is desktop platform, not high-end platform.. that's Haswell-E. You want better performance, you need to buy Haswell-E. Normal Haswell isn't a high-performance CPU..it's a mobile CPU. Straight up.

 

[FireFox]

Normal Haswell isn't a high-performance CPU..it's a mobile CPU. Straight up.

+1 many users just go and buy the first CPU Intel releases, that's why I just wait a few months when a new CPU is released and see if it's worth to upgrade or not.

 

[RealNeil]

I really miss the olden days. .(

Also remember every chip is different. Some overclock like mad and uses little power doing so, some require tons of voltage to achieve the same result, if they even can get to it. There's no such thing as a guaranteed overclock. The K means they can be overclocked, but it doesn't say anything about how much and what it takes to get there.

That's why they call it the Silicon Lottery! (EDIT: corrected my spelling,....one track mind)

I usually go into it with the expectation that my OC will be crappy. Then, if it is, I'm OK with it. If I get a good OC with it, then that's a huge plus.
Remember that an i7-4790K will have stellar performance on stock settings. While we want that OC goodness, it's not necessary in the grand scheme of things.

 

[cadaveca]

That's why they call it the Silicone Lottery!

Silicone usually involves doctors and surgery. That "e" on the end makes all the difference.



ROFL.

 

[FireFox]

I have a great Chip, I love it.

Intel have blessed my Chip lol

 

[RealNeil]

Silicone usually involves doctors and surgery. That "e" on the end makes all the difference.



ROFL.

I guess I was referring to a different kind of lottery,..........