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1answer
36 views

What is Intel Speed Step technology?

My Samsung N145+ Net book specs say that my Intel Atom Processor N455 supports Speed step technology. Is this something that can be activated or is it always working? Is it just a marketing ploy?
0
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1answer
87 views

7-zip -v switch will fail to use cpu properly?

I have been using this script for years, back from when above 2 cores was a challenge in 7z and I had just offered myself a shiny i7: "C:\Program Files\7-Zip\7z.exe" u -m5=lzma2 -mmt=8 %1.7z %1 ...
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3answers
6k views

How to turn off SpeedStep in Windows 7?

I have an Asus N53SV laptop with Windows 7 64-bit. I need to calibrate profiler in NetBeans, and to do that I need to disable functions that lower the CPU frequency in my laptop. I believe it's ...
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0answers
625 views

Windows 8 Task Manager is not getting correct current CPU speed

When I fully load my Core2 Duo E8400 CPU, Coretemp and CPU-Z both report (see red boxes) that my CPU is running at the full clock speed of 3.0 GHz. However, Task Manager (and Resource Monitor) reports ...
0
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0answers
34 views

CPUMON mhz reading weird

I am using this cpu usage monitor: http://www.den4b.com/?x=products&product=cpumon. They give a cpu speed monitor (im assuming to monitor speedstep). However when the computer is idle it seems to ...
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0answers
46 views

Advanced power options - processor power managment [duplicate]

My cpu has p states at 2.3 ghz, 2.1 ghz, 1.1 ghz, and 800 mhz. In the advanced power options-processor power management. Windows allows you to change the percentage. Does this percentage get "rounded" ...
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3answers
4k views

How speed and frequency of a processor are related to each other? [closed]

I think that clock rate of processor determines the speed of core, in my case it is 1.86GHz. But If I am not wrong, it also determines that how much energy it will consume. If you have more frequency ...
1
vote
1answer
465 views

How to check the clock speed of Sandy Bridge HD 3000 IGP in OS X?

I am writing a cross-platform OpenGL application and I am experiencing very different performance results between OS X and Windows (both 7 and 8). In Windows GPU-Z reports the Sandy Bridge HD 3000 ...
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2answers
951 views

CPU performance fluctuates wildly

CPU: Intel Core 2 Duo P8400 @ 2.26GHz. I've had this laptop for about 3 years and in the past month I've started getting periodic framerate drops in games. Usually the pattern is random, something ...
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4answers
4k views

Why is Intel Turbo Boost Not Working On My Laptop? (Continued)

This is continuation to previous question *Please read previous question in order to understand my findings. Okay guys, this is REALLY strange. It seems as Intel Turbo Boost was always working, but ...
10
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5answers
24k views

Why is Intel Turbo Boost Not Working On My Laptop?

Investigation continued Why is Intel Turbo Boost Not Working On My Laptop? (Continued) Dell Latitude E6420 is my laptop with Windows 7 Enterprise. Turbo Boost is enabled in BIOS but is disabled ...
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3answers
8k views

How to disable SpeedStep for an Intel Core i7 processor?

I'm taking performance measurements of several bits of code. How can I disable SpeedStep on my Core i7 CPU so that the CPU clock speed is constant? I'm not trying to overclock here, and since ...
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5answers
22k views

What regulates Intel SpeedStep CPU throttling? Can I get some control of this on Windows7?

I’m trying to get a big virtual disk file compressed (using WinRar) before I go home today, but my CPU frequency keeps merrily going up and down between the nominal 2.8 GHz and a measly 800 MHz! The ...
1
vote
1answer
5k views

Tool to undervolt a Core i3 laptop?

Using k10stat, I significantly undervolted all 3 p-states of my Athlon II P320 laptop, yielding a 10-20% longer battery run time. Are there similar tools for Intel's Clarkdale/Arrandale processors? ...