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DDebbil

4790K odd turbo behaviour

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Posted · Original PosterOP

Just been trying out a 4790K on a couple of different motherboards, but found that they seem to treat the turbo differently. On Prime95 with my Z87 based Gigabyte board, the CPU is running 4.2GHz all cores, which I gather is the maximum all core turbo. But on Prime with my Z97 based Gigabyte board, the CPU is running 4.4GHz all cores. Could this be a case of 'stock setting overclocking'? I've heard of that, but a bit surprised to find it within the same company on two similar boards. Both boards have BIOS reset to defaults (other than XMP).

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you might find something labelled "all core enhancement" or something similar, a feature shipped with high tier boards as a sort of auto overclock.


I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k (won) - EVGA Z370 Classified K - G.Kill Trident Z RGB - Force MP500 - Jedi Order Titan Xp - The venerated Hyper 212 Evo (with RGB Riing flair) - EVGA G2 650W - Black and green theme, Razer branwashed me.

Draws 400 watts under max load, for reference.

 

Linux Proliant ML150 G6:

Xeon X5560 - 24GB ECC DDR3 - MSI GTX 650 - some 7200RPM SATA II thing - Ubuntu (at the moment)

 

Feel free to critique my website. I am but a young entrepreneur.

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Stock Turbo for your CPU is 4.4Ghz

https://ark.intel.com/content/www/us/en/ark/products/80807/intel-core-i7-4790k-processor-8m-cache-up-to-4-40-ghz.html

 

the Z97 Gigabyte board likely has "all core turbo" "all core enhancement" "all core boost" or a similar setting enabled by default. I wouldn't complain tbh. 


WHY IS COMIC SANS EVEN AN OPTION????

My rig:

CPU: AMD FX 8350 @ 4.0Ghz (4.6Ghz OC)

+Cooler Master MasterLiquid Lite 120 AIO

MB: Gigabyte GA-870A-USB3L

RAM: 16GB DDR3 (2x8GB) Samsung "Magic Memory" running at 1866Mhz 

GPU: MSI GeForce GTX 1660 ti GAMING X 6G 6GB

CASE: Fractal DesignFocus G ATX Case w/ Window, White

PWR: Thermaltake SMART 600W

DISPLAY: 3x 20" AOC 1080p 60hz 4ms (really not recommended, black trails EVERYWHERE)

 

Storage-

C : Raid0 480GB- Kingston V300 240GB + Kingston A400 240GB (Windows, Programs, Main Games)

D : Raid1 2x Seagate Barracuda ES 750GB 3.5" 7200RPM (Game overflow storage + Raid0 backup)

E : 1x Seagate Barracuda ES 750GB 3.5" 7200RPM (Movies + Music)

 

Cooling-

NZXT Sentry Mix 2

4x Rosewill RFA-120-K 74.5 CFM 120mm (front/top)

2x Cooler Master MasterLiquid Stock 120mm fans (front/back of AIO)

 

Input- 

KB: Logitech G15 1st Gen

M:Logitech G300S Wired Optical

CO: Steam Controller

H: Plantronics GameCom 780 7.1 Channel

S. Logitech Z213

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Also, pls pls don't use XMP profiles.

 

"Friends don't let friends use XMP" -Linus Sebastian 


WHY IS COMIC SANS EVEN AN OPTION????

My rig:

CPU: AMD FX 8350 @ 4.0Ghz (4.6Ghz OC)

+Cooler Master MasterLiquid Lite 120 AIO

MB: Gigabyte GA-870A-USB3L

RAM: 16GB DDR3 (2x8GB) Samsung "Magic Memory" running at 1866Mhz 

GPU: MSI GeForce GTX 1660 ti GAMING X 6G 6GB

CASE: Fractal DesignFocus G ATX Case w/ Window, White

PWR: Thermaltake SMART 600W

DISPLAY: 3x 20" AOC 1080p 60hz 4ms (really not recommended, black trails EVERYWHERE)

 

Storage-

C : Raid0 480GB- Kingston V300 240GB + Kingston A400 240GB (Windows, Programs, Main Games)

D : Raid1 2x Seagate Barracuda ES 750GB 3.5" 7200RPM (Game overflow storage + Raid0 backup)

E : 1x Seagate Barracuda ES 750GB 3.5" 7200RPM (Movies + Music)

 

Cooling-

NZXT Sentry Mix 2

4x Rosewill RFA-120-K 74.5 CFM 120mm (front/top)

2x Cooler Master MasterLiquid Stock 120mm fans (front/back of AIO)

 

Input- 

KB: Logitech G15 1st Gen

M:Logitech G300S Wired Optical

CO: Steam Controller

H: Plantronics GameCom 780 7.1 Channel

S. Logitech Z213

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Posted · Original PosterOP

I thought the 4.4 was the max single core turbo and 4.2 was the max all core - is that not right?

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2 minutes ago, DDebbil said:

I thought the 4.4 was the max single core turbo and 4.2 was the max all core - is that not right?

That is true, and the all core enhancement feature makes all cores go to that frequency


I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k (won) - EVGA Z370 Classified K - G.Kill Trident Z RGB - Force MP500 - Jedi Order Titan Xp - The venerated Hyper 212 Evo (with RGB Riing flair) - EVGA G2 650W - Black and green theme, Razer branwashed me.

Draws 400 watts under max load, for reference.

 

Linux Proliant ML150 G6:

Xeon X5560 - 24GB ECC DDR3 - MSI GTX 650 - some 7200RPM SATA II thing - Ubuntu (at the moment)

 

Feel free to critique my website. I am but a young entrepreneur.

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Posted · Original PosterOP

The auto overclock seems to draw a lot more power and raises temps considerably compared with stock :S

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2 minutes ago, DDebbil said:

The auto overclock seems to draw a lot more power and raises temps considerably compared with stock :S

It does which is precisely why some will turn it off.  You may be able to reduce the temperatures by undervolting a bit, but it can take a bit of time and patience tuning in a stable lower voltage while keeping the frequency bump.  There has definitely been controversy about this being on by default.  Just because you are buying a higher end motherboard doesn't necessarily mean you want to (or know how to) deal with the potential side effects.  The 4th gen i5/i7 unlocked CPUs still came with a boxed cooler, and there's no way I'd run one of those CPUs on the stock Intel heatsink with that setting turned on.

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