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jgoggi

i7- 4790K upper frequency

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HI, I have upgraded my computer with an i7-4790K, that has a frequency of 4.0 to 4.4 GHz. In the computer specs I always see 4.0 GHz, what should I do in order to have the turbo 4.4 GHZ frequency when running FSX? 

Thanks.

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You wont see the overclocked frequency on your system. Get a light monitoring program like CPU-Z from cpuid and you will be able to confirm your multiplier is way up to x44

 

I have the 4790k I am up to 4.7 stable and do the same thing. 

 

Good luck.

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If the 4790K is similar to the 4770K, the Intel advertized turbo rate will not be reached in FSX.. at least not automatically.

 

The Intel specs are are for "one loaded CPU core", and not for multi-core load.. a bit of optimistic advertising..

 

You may have to set the higher rate in the BIOS.

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Thank you. Can anyone tell me what parameters I need to change in the BIOS (ASUS Z87 motherboard with UEFI BIOS Utility) in order to get the 4.4 GHz or higher all the time?

Thanks!

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Your question already reveals that you don't have a clue about overclocking a CPU. Then my only advice is not to try it! You will only get an unstable overclock and start posting questions why FSX always crashes to desktop. Overclocking Haswell CPUs is much more complicated than just changing 1 or 2 settings in the BIOS. At least if you want a really stable overclock.

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Well then Carlo...why not post a set of guidlines for the OP to follow; or maybe a link? That would probably be more helpful.

 

James, Avsim have an excellent software and hardware guide in pdf form. Download and look at that. Also, Asus have several YouTube videos explaining the overclocking process in some detail. If you are concerned about baking your CPU, Intel have performance insurance available at a modest cost; look on their site. Don't know what else you upgraded in your system other than the CPU. You may want to update your specs in your profile. Finally, more power...more heat. Make sure you have adequate cooling.

 

Graham

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Well, but I guess the fact that the i7-4790 has been sold to me with the features "4.0 to 4.4 GHz" should not mean that I must be an expert in order to obtain the 4.4 GHz, it should be kinda automatic, shouldn't it? By the way, Bert wrote "The Intel specs are are for one loaded CPU core, and not for multi-core load ". Ok, isn't FSX the typical software that loads only one core? The turbo frequency should apply to FSX, then.

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Well, but I guess the fact that the i7-4790 has been sold to me with the features "4.0 to 4.4 GHz" should not mean that I must be an expert in order to obtain the 4.4 GHz, it should be kinda automatic, shouldn't it? By the way, Bert wrote "The Intel specs are are for one loaded CPU core, and not for multi-core load ". Ok, isn't FSX the typical software that loads only one core? The turbo frequency should apply to FSX, then.

Patched to the latest version (circa 2008?) multicores can be used by FSX for texture loading provided you have the correct AffinityMask.  In general when all cores are functioning you can expect a somewhat lower overclock over apps that only use one core.

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Well, but I guess the fact that the i7-4790 has been sold to me with the features "4.0 to 4.4 GHz" should not mean that I must be an expert in order to obtain the 4.4 GHz, it should be kinda automatic, shouldn't it? By the way, Bert wrote "The Intel specs are are for one loaded CPU core, and not for multi-core load ". Ok, isn't FSX the typical software that loads only one core? The turbo frequency should apply to FSX, then.

When under load, the 4790k automatically runs at 4.4ghz. To confirm this, run FSX in the background, Use a program such as CPU-Z to make sure the frequency is indeed running at 4400MHZ.

 

At idle it throttles down to 4.0 or 4000MHZ. 

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Well, but I guess the fact that the i7-4790 has been sold to me with the features "4.0 to 4.4 GHz" should not mean that I must be an expert in order to obtain the 4.4 GHz, it should be kinda automatic, shouldn't it? By the way, Bert wrote "The Intel specs are are for one loaded CPU core, and not for multi-core load ". Ok, isn't FSX the typical software that loads only one core? The turbo frequency should apply to FSX, then.

 

I would not stress out over this.. the CPU will run FSX very nicely "out of the box"  B)

 

You started out by saying that you never saw the 4.4 in action, and I would indeed suggest that if you are keen to see this, you'll have to set it yourself..  Your Asus board should come with "AI Suite 3" which will allow you set the core frequencies to 4.4 "all cores".. so you can see if this is stable in FSX.

When under load, the 4790k automatically runs at 4.4ghz. To confirm this, run FSX in the background, Use a program such as CPU-Z to make sure the frequency is indeed running at 4400MHZ.

 

At idle it throttles down to 4.0 or 4000MHZ. 

 

I would be surprised.. 4.2 more likely..  if the 4770K is any thing to go by.. it is advertized as 3.9, but runs 3.7 under multi-core load.  Would like to hear the outcome  :unsure:

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I'll bet you a beer that it does not.. 4.2 more likely..  if the 4770K is any thing to go by.. it is advertized as 3.9, but runs 3.7 under multi-core load.

 

4970k not 4770k 

 

The 4770k's max turbo frequency is 3.9GHZ.

 

The 4790k has an automatic "max turbo frequency" boost to 4.4 under load. ( without manually overclocking) as it has much improved heat spreading than the 4770k.

 

 

 

I haven't updated my specs, but I am now running the new haswell chip.

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James,

 

As many have said, and said well, the 4790 turbo frequency is 4.4Ghz. You don't have to do anything to get that level of performance. The CPU is designed from the factory to get the specified frequency when an application (such as FSX) requires the extra horsepower. Best of luck with the new rig.

 

Graham

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.. and does it indeed run 4.4 when FSX is active?

Yep! Under any significant load, it will automatically hit 4.4. As well as increase Voltage accordingly.

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Yep! Under any significant load, it will automatically hit 4.4. As well as increase Voltage accordingly.

 

OK - thanks for that, I stand corrected  :blush:

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Reason I questioned it, is that Intel's fine print states:

 

Maximum turbo frequency indicates the highest possible frequency achievable when conditions allow the processor to enter turbo mode. Intel Turbo Boost Technology frequency varies depending on workload, hardware, software and overall system configuration.

Due to varying power characteristics, some parts with Intel Turbo Boost Technology 2.0 may not achieve maximum turbo frequencies when running heavy workloads and using multiple cores concurrently.

Availability and frequency upside of Intel Turbo Boost Technology 2.0 state depends upon a number of factors including, but not limited to the following:

  • Type of workload
  • Number of active cores
  • Estimated current consumption
  • Estimated power consumption
  • Processor temperature

When the processor is operating below these limits and the user's workload demands additional performance, the processor frequency will dynamically increase until the upper limit of frequency is reached. Intel Turbo Boost Technology 2.0 has multiple algorithms operating in parallel to manage current, power, and temperature to maximize frequency and energy efficiency. Note: Intel Turbo Boost Technology 2.0 allows the processor to operate at a power level that is higher than its TDP configuration and data sheet specified power for short durations to maximize performance.

 

I know that, for the 4770K, that means that it fails to (automatically) reach 3.9 in a multi-core environment - but it would appear, from your comments, that Intel has upped their game with the 4790K  :rolleyes:

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Sorry, but even though it has some good hints there is a lot of BS in this guide. Would definetely not recommend it.

 

Regardless of what you or anyone else thinks of Nick and his opinions it is the best guide out there for overclocking haswell.

 

Rather than just say you would not recommend this one post a link to a better one, if you even know of a better one!

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The 4790k will by default go up to 4.4 but to make sure it does not throttle down (even in FS) set your Power options in Windows to "High Performance".

For browsing the web or anything else I switch to "Balanced".

You don't really need to overclock this baby, it brings "smoothness" to FSX or P3D more than extra FPS.

There are some good articles on that subject: the 4790K grabs more frames than a 4770k or 3770k. Look at "TechReport" site.

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There are some good articles on that subject: the 4790K grabs more frames than a 4770k or 3770k. Look at "TechReport" site.

 The 4790 is a factory overclocked 4770K, no more, no less..

Yep! Under any significant load, it will automatically hit 4.4. As well as increase Voltage accordingly.

 

..and stay at 4.4 with stock cooling?

 

Impressive!

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..and stay at 4.4 with stock cooling?

 

Impressive!

Ineed. I consider it to be what the 4770k should have been. I upgraded to Devil's Canyon and couldn't be happier with the overclockability.

 

I'm on 4.6ghz 1.23v stable.  For comparison, the 4770k I used to have needed 1.33v to get to that speed.  :wacko: Talk about cooking.

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