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0answers
20 views

why is a laptop with dual core processor with 2.4GHz more practical than a single core 4.8GHz processor?

Hi I am looking to get a laptop but I have been reading that dual core processor with 2.4GHz is better than a single core 4.8GHz processor. Could someone explain exactly as to why that is?
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0answers
7 views

Relationship between Motherboard FSB and SDRAM Memory memory clock speed

I need to know what is a Relationship between Motherboard FSB and SDRAM Memory memory clock speed? ...
-5
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1answer
36 views

Would Celeron 1037U be enough to record 4 1080p video streams onto harddrive?

Would Celeron 1037U be enough to record 4 1080p video streams onto harddrive? I have personal NAS server which runs Ubuntu 14.04LTS. CPU is Celeron 1037U. Would that be enough to just pick up 4 ...
0
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0answers
35 views

CPU Clock not precise?

I have an AMD FX-6300 CPU, non-overclocked. I have all power saving features such as C1E turned off in the BIOS. I have also disabled turbo-boost. At stock settings, this CPU should run at ...
0
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0answers
11 views

CPU frequency scaling max frequency

I'm able to cap the frequency of my laptop to 800MHz, but I notice the cpu usage almost doubles. Are there any long term negative effects to not letting the cpu manage it's frequency dynamically? I ...
1
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1answer
53 views

My CPU frequency stays the same all the time, why?

My CPU(FX9590) clock speed stays at 1.37 GHz all the time even while gaming, but my maximum frequency is able to reach 4.72 GHz at most. I tried to change the clock speed through AI Suite II(I am ...
1
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1answer
52 views

Why is current CPU frequency read-only for root?

I have a program that provides benchmarks, but its OS agnostic and does not know how to read CPU frequencies. The test program is driven through a script. If I provide the CPU frequency, then the ...
0
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2answers
137 views

CPU speed issue after upgrading to Windows 10

After upgrading from Windows 7 to Windows 10 I see a performance issue related to the CPU. As you can see from the screenshot, the actual CPU speed is shown as 1.18 GHz instead of the 2.27GHz that is ...
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0answers
77 views

IPC CPU Comparison

From what I've read, the apple cpu's from phones are faster than snapdragon's cpu's due to Cpu IPC. Does somebody knows what IPC has A9X, snapdragon 810 and snapdragon 820?
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5answers
714 views

Cpu running half speed

While playing a game few hours ago I noticed my computer suddenly became incredibly slow. The windows task manager showed that the cpu was using half its capabilities. I have been playing this game ...
1
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1answer
176 views

How better is a desktop processor than a mobile processor?

Inspired by this question and its answer: What's the difference between mobile and desktop processors? The question and the answer are great to have some insight on the subject. But I'd like to ...
8
votes
1answer
651 views

Does a CPU clock frequency vary on-demand?

On my machine (not a personal computer), I have 24 cores (2.4GHz) and I currently don't have any important process running. Right now, are all of my 24 cores running/vibrating at 2.4GHz or are some of ...
2
votes
1answer
913 views

Noisy CPU Fan in Linux Mint

I have a Dell Inspiron laptop with Windows 8.1. The CPU fan is quiet when I use Windows. I installed Linux Mint with Cinnamon on another partition, but the fan is noisy all the time when I use Linux ...
0
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1answer
67 views

How to fix CPU clock (for benchmarking purposes)?

How to make the CPU not change the speed (clock)? I want to compare execution time of some programs and need constant CPU performance (not necessarily high performance). The CPU in question is ...
0
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0answers
37 views

Trinity A6 AMD APU's support 2033 or 2400 MHz DDR3 RAM?

I own an APU A6-4400M with the defaul HP memory: DDR3 800 Mhz ~ I heard that increasing the memory to dual of the same size and speed increases CPU and GPU performance a lot due to Dual-Channel ...
0
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1answer
127 views

Concerning Dual Processor Motherboards

I've read about dual processor mother boards, but some things don't seem to make themselves clear. I have a few questions: Is a computer with two 1GHz single-core CPUs just as fast as a computer ...
1
vote
2answers
319 views

If a 32 bit CPU has a 64bit bus system, is it 64 bit or 32 bit?

Let's say the internal registers of a CPU are 32 bits wide. But the CPU has a 64 bit system bus and the two separate pipelines are receiving information simultaneously, is it considered a 32bit ...
0
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0answers
37 views

Why is Pentium 4 Prescott slow compared to Pentium M? [duplicate]

I was benchmarking if it is worth to put loop inside a callback function so I tested fourth order Runge-Kutta of on y'=y in C++, all with gcc 5.1 on Ubuntu with compilation command g++ -std=c++11 -O3 ...
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0answers
800 views

What specs should I consider for playing/streaming 4K to 8K video perfectly? [closed]

I am buying a massive, 4K screen, and might consider one closer to 8K instead. Since these screens are very capable of rendering the full brink of every pixel sent to it by a powerful GPU, what specs, ...
0
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1answer
57 views

When reviewing software requirements, should we use the burst speed or normal clock speed

There is a piece of software I'm looking at, which has a minimum requirement of 1.6ghz (Visual Studio 2012) I'm looking at a new computer, and saw the CPU is described as 1.46 Ghz / 2.39 Ghz ...
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0answers
394 views

Overriding “The speed of processor 0 in group 0 is being limited by system firmware”

My Thinkpad automatically locks the CPU frequency to ~1,5Ghz while the adapter is plugged in without a battery, as described in this article. I don't care whether the adapter can support it or not ...
3
votes
1answer
174 views

Why is my CPU running slower than it should be?

I have an AMD FX(tm)-6100 Six-core processor that should run at 3.30 GHz, however upon trying to overclock the processor (which I never got around to doing) I have found that it is running at 1.4 GHz ...
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3answers
2k views

Why does reducing CPU frequency improve battery life?

Shouldn't we have roughly the same battery life regardless of the frequency since the higher the frequency is, the faster tasks will complete so in the end the CPU, despite running at a higher ...
0
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0answers
122 views

Difference in performance between ARM and “traditional” CPU on Raspberry PI example

I'm not sure if my question fits here, but I will give it a try since it does not seem to fit any other StackExcnhange. New day ARM processors are slower (if you look at MHz - 500MHz in RPi case). ...
-2
votes
1answer
70 views

Need help comparing Laptops with best speed RAM

I am planning to buy Lenovo Yoga 2 11.6 Laptop, but I do not understand The difference between the RAM in comparison. Windows OS. Hard Drive. Thanks, Here is Screenshot. Link to screenshot. ...
0
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0answers
98 views

Why does my app run much faster on my laptop than my VPS?

I have a web application with a Ruby backend that does some stuff that is a bit computationally intensive. I develop and test the app on my rMBP with a 2.7GHz i7. I have the app deployed to a Linode ...
0
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0answers
18 views

What is more important on a cpu? [duplicate]

What should be the criterion upon I should decide whether or not to buy a processor its speed? or the number of cores? meaning should I seek out a processor which is fast but has 2-3 cores or is it ...
85
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11answers
44k views

What's the difference between mobile and desktop processors?

I just read about the new Samsung Galaxy Note Edge having a 2.7GHz quad-core processor and 3GB of Ram. The laptop I bought last year by HP is 4GB of ram and 2.3GHz quad-core and my iMac is even ...
0
votes
2answers
118 views

Is it bad for a CPU to be running at a high speed for extended periods of time?

I have an Intel Core i7-4770S (3.10 GHz) that can go up to 3.9 GHz in turbo mode. Windows Task Manager can report it going up to about 3.5 GHz when playing certain games and probably goes higher every ...
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0answers
52 views

How to compute the total speed

I am hiring a VPS (Perfetto4) from Mochahost with 2 cores of 2,27GHz. The promissed speed is 2,7GHz total. The multiplier is 11. How do I calculate the total speed of CPU? Is 2 cores of 2,27GHz ...
0
votes
2answers
38 views

Best factor for determining the bettering of CPU [duplicate]

First of all, if my English is not good please pardon me. Now the problem; when comparing many CPUs with each other, which factor is the best one? For example, there are many various types, like, ...
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0answers
112 views

Windows 7 - Acer Aspire M5811

I have a problem with my Windows 7 Desktop PC. Today I used it normally and it turned off normally to, but the next time I tried to turn it on, it became extremely slow. It's normal until I need to ...
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1answer
626 views

CPU frequency is very low and system is very slow too in core i5 vaio laptop

Sometimes I notice that system is very slow and when I see task manager, these are information in performance tab: Utilization: 8% Speed: 0.2 Ghz Maxsimum speed: 2.5 GHz Hardware details are: ...
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2answers
44 views

How are CPUs so freakin fast

I am going through a book on C and it said "Write a program that counts from 1 to 300 million, printing the number only if it is a multiple of 100 million. Use a stopwatch for fun to time the ...
2
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0answers
90 views

Utilizing the full power of my workstation

I am not a gamer. Used to be, 10+ years ago. My workstation is strictly for business: Quickbooks Excel Access General Business QuickBooks is tied to a synchronization engine that is synchronizing, ...
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0answers
727 views

How do I underclock my Macbook AIR?

When my MacBook gets below 1% battery life I believe the CPU slows down. The battery indicator states I have 10 minutes left but those are the longest 10 minutes in the laptop cycle. Is there a way to ...
-1
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1answer
586 views

AMD FX 4130 overclock-How to overclock the CPU from the BIOS [closed]

Well I've been using my CPU for awhile now but I want to unlock it's full power but when it comes to CPU overclocking I've never been good with it nor taken the time to learn it from these bad video's ...
0
votes
1answer
516 views

Why is my CPU slowing down? (power settings and temperature are OK)

I realise others have posted similar questions, but I'm having trouble working out why my processor isn't running at full speed. I'll keep this visual. Given this: ...and this: ... why does ...
0
votes
1answer
123 views

Processor Throttling, Speeds and Battery life

Does throttling the CPU down give you more battery life? Does i3 give you more battery life over an i7? Just I've not had the options to really test this theory as it requires having the same laptops ...
2
votes
1answer
646 views

How can I monitor CPU frequency on Linux servers?

At low CPU frequency, latencies can be higher or we may come to some wrong conclusions related to server capacity. Knowing the CPU frequency is important for high performance scenarios. In case of ...
1
vote
1answer
301 views

CPU heating too much, cpufrequtils to limit its speed works weird

I am using an Intel i5 powered laptop and my OS is a 64 bit Linux Mint 14, kernel version 3.5.0-43. Up until now the CPU usage policy was ondemand and it usually was working at 2.40Ghz. In this setup ...
0
votes
1answer
1k views

What does cpu MHz mean in /proc/cpuinfo?

I own Quad-core Core i5 laptop. I got curious to know how much time it takes for my laptop to execute a simple instruction. So, I did cat /proc/cpuinfo. Below is the relevant portion of it, model ...
0
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1answer
178 views

Disabling CStates/TurboMode in Windows

In Linux I know how to boot and have cstates disabled to get full CPU power. How is this done in Windows? Does it vary based on Intel and AMD?
2
votes
1answer
19k views

Change CPU Clock Speed from Windows

How can I change the CPU clock speed of my computer? It is a Dell Inspiron 5720 laptop, running Windows 8.1 Pro. In Linux, I know there are ways of doing this from the operating system itself, instead ...
2
votes
1answer
116 views

Is there a noticeable increase in computer performance moving from a Dual Core to an i5?

I have an i5-3470 3.2Ghz and 6GB or RAM. I also have a Dual Core E5700 3.0 and 8GB or RAM. Both use Windows 7 Pro. I am currently using the latter. I would like to use the i5, but as a developer, ...
0
votes
1answer
58 views

Any rerefence of CPU world statistics? [closed]

I am looking for any referencee about computer power statistics across the world. My main interest is about real computing capabilities, so I'd prefer information about real processor power, and even ...
-1
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1answer
73 views

Should I compare CPUs based purely on advertised speed? [duplicate]

There are many types of CPUs, like Pentium, Atom, core 2 duo, core iX (X = 3,5, ....), But I always don't look at them this way! I always look at their speed which in GHZ unit and then compare them ...
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0answers
81 views

Starting any process and suspending it lowers CPU from ~50% to ~5% in Vista, Why?

While doing a little housekeeping on a Windows Vista installation, I discovered that suspending any winlogon.exe subprocess would lower the CPU usage from the normally observed 50% usage down to ...
2
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0answers
54 views

Back of the envelope calculation for speed of matrix multiplications [closed]

I'm trying to develop an intuition for how feasible/scalable machine learning algorithms are. The dominant cost is always matrix multiplications, but there seem to be no readily Google-able resource ...
3
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3answers
2k views

Hypothetically, can I swap processors between a smartphone & a desktop?

When manufacturers mention the speeds of smartphone processors, is it right in my understanding that the speeds between smartphone processors and desktop processors are comparable? In other words, ...