Intel Speed Shift Technology Disabled on my 6700K

@Mr. Fox @Prema @HTWingNut

Hey everyone, I recently read about the Intel Speed Shift Technology and that it's coming to Windows 10 in November. I noticed though it shows as disabled (in red) in HWiNFO



It seems like the BIOS has to be updated to support it as well.

Any info on this?

 

Reply from MDL Forums:

 

I mean, if you REALLY want maximum performance, you could set it so that your CPU always runs at max frequency. I don't have this enabled on my laptop because I want my laptop to run as cool as possible, but I could literally turn this on by unchecking the Power Saver option in ThrottleStop. I do have max frequency at all times enabled on my desktop, though, since the temperatures are always already really low (literally idles at 24-27c) and thus wouldn't need to be lower, plus I want as much performance out of my desktop as possible. I have my server set up the same way as my desktop - max frequency at all times. I know this was a bit of a random tangent, but I just thought I'd share what I do.

I really hope that Intel Speed Shift is not forced down customers throats and that it's toggle-able at least. Does anyone know if Intel Speed Shift is forced or if it's toggle-able?

 

It's red on my 6700 as well.
I also noted that the turbo boost is again disabled by some program. It works fine after reboot, so I am still now sure what caused it.

 

Where is that power save option in XTU? I don't see it

 

I don't know, I don't use XTU, I don't feel comfortable with a program saving options to my BIOS. I use ThrottleStop because I know any changes I make are temporary.

 

same with xtu though. it does change the settings in the bios but theyre also only temporary. so theres actually a difference between changing bios settings via xtu or directly inside the bios, since the latter are permanent and ud have to do a cmos pull to reset it to default after a bad oc/uv/mod.

in any case, concerning that SST function: it basically enables the cpu to switch faster from idle/powersave/c-state to load/performance state and back, thus increases its "reaction time" for workloads.
could it be that u have powersaving and c-states disabled to get full performance, matrix leader? in that case SST would be pointless anyway, because ud be running at high performance mode all the time anyways

Sent from my Nexus 5 using Tapatalk

 

It would seem that SST is most beneficial to low TDP chips. It basically speeds up the "race-to-idle" condition but also assumes that the lower P-States are slow enough to be noticeable or have a large enough performance penalty.

From what I can see, the efficiency of it is really dependant on workload. Since the P-State control is entirely up to the CPU, it also has no hope of detecting what the job is which may work against it.

One thing I can also think of, is current CPUs (even Skylake) generate heat very quickly. SST changing to highest clock/P-State can work counter-intuitively by generating more heat earlier and thus working the cooling system harder (which contributes to power draw/efficiency). Despite the latency of OS control, it also allows you to control clocking behaviour to suit workloads.

The fact that Windows doesn't have any directly controllable CPU governor also doesn't help.
For example, after Android 5, Google implemented a modified behaviour to the CPU governor which immediately jumps it to a higher P-State whenever button or touch input is detected. The end result being that user interaction with the GUI feels much smoother as you're not waiting for the ramp-up of the CPU governor to play catch-up to what's going on.

Overall I suspect it's a change that probably won't make a huge difference outside of ULV processors. Mainly because the higher end chips use a much higher base clock, meaning even at their lowest they still react well, as opposed to the ULVs which have a super low base clock.

 

It can help make the machine feel more response in adaptive power modes too so less of a reason to run at full speed all the time.

 

Already in my Mod...

 

hes back!

Sent from my Nexus 5 using Tapatalk

 

Please give us the mod brah

 

Yes... sure is...

And, validated 4.8GHz stable! WOOT! http://valid.x86.fr/nd4ldu

Yes, back and IN STYLE!

 

Holy Moly!

 

Where's the 1024M run?

Anyone found some software to test Speed Shift on? Would be interested how it performs against Himulti's

 

@Dufus - I tested it using Windows 10 TH2 and with CPU overclocking SpeedShift degraded performance by a small margin across several benchmarks. Maybe because I run such a high overclock with c-states disabled it is not a feature that offers any value because the CPU is operating in a static clock state. I did not test it to find out how it worked with stock clocks since I never use stock clocks for anything. Let me see if I kept the screen shots. I might have deleted them already. If not, I'll post them up.

 

yeah then it won't matter, the whole point of it is to be able to go from stock to the Turbo Boost speed without lag/delay. Since you are running at the max speed all the time, there is no place for Speed Shift to operate, you annihilated it

 

Well so many posts / articles saying Speed Shift is the next best thing since sliced bread and only available on Skylake and W10. Pretty sure the HiMultis which uses Haswell CPU registers to set hardware registers that bring the CPU out of idle (C-States) and into max turbo, get the work done and then back to idle, does much the same thing under Windows balanced mode and without any interaction needed from the OS. That can be W7 or W8 or W10 and pretty sure it does it in less than 1ms which is where Speed Shift is. Also should work for Broadwell.

Of course it would be nice to see some real numbers using idle powers and response times with suitable bench using defaults, Speed Shift and HiMultis.

 

Wow [email protected] must be insane beast!
Bios options look great! Prema powered mod bios never disappoints us!
BTW what is the utility that you use in the first screenshot? the one that shows graphs of cpu / gpu informations on the right side of the screenshot.

 

How i can flash your mod on P870DM-G? CPU i5 6600K and GTX980 desk version

 

Hey bro! Hope all is well with you.

That is AIDA64... Sensor Panel feature.

That's part of the problem. Their lips are moving, so there's a great chance they're blowing smoke up our butts with a bunch of lies and distortion to try to force adoption of their latest abortion OS. And the media muppets are liable to say anything with a gun to their head. These filthy Redmond Mafia shysters will stop at nothing with their unethical shenanigans. I hope they get sued and lose tens or hundreds of millions of dollars with their self-serving Digi-Nazi agenda.

http://www.zdnet.com/article/microsoft-updates-support-policy-new-cpus-will-require-windows-10/