CPU Speed Difference

JeremiahZamp56 · Nov 23, 2014

My specs card on my Acer Aspire says "...Turbo CORE technology up to 2.3 GHz" but when i look up the value from the control panel it says 1.5GHz. Why is that?

Darkbreeze · Nov 23, 2014

What is your CPU model? Is it an Intel or AMD cpu? Most likely this is because the 1.5Ghz is the base clock and 2.3Ghz would only be at full turbo boost or turbo core, depending on which brand you have. The turbo speeds won't be shown in the system specs, only the base clock. If you want to see what speeds your CPU is actually running at any given time, install HWinfo and run sensors, or install a monitoring utility that's compatible with your hardware and can track live data for your hardware like CPU-Z or Core Temp.

JeremiahZamp56 · Nov 24, 2014

Darkbreeze :

Its an AMD A6-3400M. After i posted this ^ i've been looking into overclocking my CPU so i downloaded AMD overdrive and took a look at it. I found the turbo core tab but it wasn't activated and it had a low clock when i activated it.

Darkbreeze · Nov 24, 2014

It doesn't matter if it's activated or not. That activation is just for the manual mode. The BIOS and CPU themselves come designed to turbo and will do so unless you manually disable the feature in the BIOS.

As seen here, the base clock for your CPU is 1.4Ghz, or 1400Mhz, and the max turbo speed is 2.3Ghz, or 2300Mhz.

http://www.cpu-world.com/CPUs/K10/AMD-A6-Series%20A6-3400M.html

This means that the "normal" speed for your CPU is only 1.4Ghz, not 2.3Ghz. The 2.3Ghz speed is only a boost overclock that the CPU get's "accelerated" to in small bursts or short extended periods to compensate for high load demands on the CPU. If you attempt to set your base clock permanently to 2.3Ghz using Overdrive or anther utility, you will likely burn up the CPU as the cooling solution for the unit is not designed to be sufficient for extended periods of overclocking which are gained by increasing the voltage and multiplier, which creates much more heat than at the stock settings.

JeremiahZamp56 · Nov 24, 2014

Darkbreeze :

Now say i wanted to increase the "normal" speed, Not by a lot but maybe up to 1.7GHz. what is your opinion on that? And AMD overdrive isnt saving any of the new values i give it how do i use BIOS to do this?

Darkbreeze · Nov 24, 2014

You probably can't do it on a laptop BIOS. It's just entirely different than a desktop BIOS. Desktops are highly configurable. Laptops are very limited in what they allow you to change or adjust. If you want to permanently change the base clock using AMD overdrive, you need to change the base clock to the setting you've chosen and then click the green button at the top so that it turns red to lock the settings in. It may or may not work. I've seen it go both ways. Here's a basic tutorial on it:

http://www.lostintechnology.com/how-to/how-to-overclock-your-cpu-using-amd-overdrive/

JeremiahZamp56 · Nov 24, 2014

Darkbreeze :

You probably can't do it on a laptop BIOS. It's just entirely different than a desktop BIOS. Desktops are highly configurable. Laptops are very limited in what they allow you to change or adjust. If you want to permanently change the base clock using AMD overdrive, you need to change the base clock to the setting you've chosen and then click the green button at the top so that it turns red to lock the settings in. It may or may not work. I've seen it go both ways. Here's a basic tutorial on it:

http://www.lostintechnology.com/how-to/how-to-overclock-your-cpu-using-amd-overdrive/

Thanks!! Ill give it a look

Darkbreeze · Nov 25, 2014

No problem. Good luck.

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