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0
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2answers
87 views

How does Intel Turbo Boost work?

I just got a new Intel CPU, and the specifications say 3.5GHz but with turbo boost to 3.9GHz. What does Intel Turbo Boost do? From the description it sounds like they are saying "The road's speed ...
-3
votes
2answers
52 views

Tradeoff: CPU Clock Speed vs Cache [closed]

If you had two choices in processors, one with 2.7GHz @ 6M cache, and the other with 3.0GHz @ 4M cache, which do you choose? This is not a shopping question, what I'm looking for is a general rule ...
2
votes
0answers
38 views

why “date -u” command shows time 25 seconds ahead “export TZ=UTC; date”?

I am running clockspeed-0.62 (DJB software) on ubuntu 13.10. I have setup timezones so that /usr/share/zoneinfo is a link to /usr/share/right, and I have setup an up to date /etc/leapsecs.dat file, ie ...
1
vote
1answer
150 views

Intel Core i7 clockspeeds

I've got an Intel i7 3770 CPU and am generally quite happy about it. However when I am just browsing around without programs running in background it seems to underclock itself quite a lot. This is ...
2
votes
0answers
30 views

Back of the envelope calculation for speed of matrix multiplications

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 ...
0
votes
1answer
77 views

Processor pipelining confusion [closed]

After reading how processors use pipelines (from various articles: wikipedia, SU, and other places), I'm a bit confused on certain parts of what I've read, so I would just like to share what I've come ...
0
votes
5answers
246 views

What is the technical term “clock speed” of a cpu

I often have heard people telling they have so and so clock speed. So what does this clock speed mean and does it determine the speed of a system? What is its significance?
51
votes
9answers
6k views

Why have CPU manufacturers stopped increasing the clock speeds of their processors? [closed]

I have read that manufacturers stopped concentrating on higher clock speeds and are now working on other things to improve performance. With an old Desktop machine with Intel® Xeon® Processor E3110 ...
2
votes
2answers
1k views

How much the CPU clock speed matters over number of cores? [duplicate]

I was comparing various desktop/server processors on Intel's website and found that Xenon Coprocessor family constitutes 61 cores. (firstly, this name lead me to think as if this would be a secondary ...
1
vote
1answer
92 views

Contradictory RAM clock speeds

I have a Asus U32U Rx012D. Here is the relevant specification : Memory : DDR3 1333/1066 MHz SDRAM, 2 x SO-DIMM socket for expansion up to 8 GB SDRAM *1 My processor is an E450 which means DDR3 ...
4
votes
1answer
537 views

CPU gets stuck at 0.90 GHz and 53% usage cap

Configuration in question: Model - Dell 1558 CPU - Core i7 740 @ 1.73Ghz - 2.93GHz RAM - 6GB DDR3 1333Mhz OS - Windows 8 Pro MSDN Now this problem has started since yesterday. My computer blanked ...
0
votes
1answer
248 views

How does clock speed influence processing speed? [duplicate]

How is AMD able to market it's microprocessors mentioning clock speed as less as possible? How does clock speed influence FLOPS? Which one should I check first, when I'm a cpu or graphics card, FLOPS ...
0
votes
1answer
1k views

Why does my GPU clock keep switching its clock rate when idle?

I have a Radeon HD4870-based Sapphire card in my desktop PC (Windows 7 64bit) that started getting pretty noisy recently. The temperature reported in Catalyst was hanging around 80C and the fan would ...
0
votes
1answer
100 views

RAM Clock Speed, What Does The 1/3 Or 2/3 Mean? (DDR:133 1/3, 166 2/3)

I am currently looking into RAM clock speeds and cannot find any reference to the 1/3 or the 2/3 that comes after the 133 and the 266 MHz clock speeds. Thanks in advance
0
votes
1answer
738 views

RAM speed slower than CPU speed - Why?

On the specs of a computer I saw, it said the CPU speed was 2.something Gigahertz, but the RAM speed was 1300MHz (1.3GHz). That does not make sense, why would the RAM be slower than the CPU? You could ...
0
votes
2answers
2k views

CPU and Motherboard clock speeds

I have been doing some reading about CPU clock speeds and how CPU clock speeds are calculated. After reading several articles, I have come to the understanding that your CPU clock speed is determined ...
1
vote
2answers
80 views

How clocks get synchronized? [closed]

In a syschronus communication between two DTEs, the frames sent are composed of an initial burst of bits (0s and 1s) to force the reciever DTE to synchronize its clock. Is it possible that the ...
1
vote
3answers
2k 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 ...
3
votes
3answers
596 views

Two different core speeds are shown on two different OS by CPU-Z

I installed CPUID CPU-Z in my laptop to review the features of my processor. In Windows XP it shows me the right core speed, Clock speed- 133MHz Multiplier- 14 Core speed = 133*14 ...
1
vote
3answers
238 views

An absolute unit to indicate CPU speed?

Most advanced computer users know that you can't compare CPU speed by just comparing the clock speed, but that other factors are involved (only one of which is multicore, but that's easy to ...
2
votes
4answers
3k views

Multi-core CPU: can I say I have a 3x2.1GHz=6.3GHz CPU?

I have an AMD A6-3500 three-core CPU. AMD System Monitor shows each core with a maximum 2100 MHz. This also shows in AMD OverDrive. Does this processor run at the speed 3*2100 MHz? Edit Can I say ...
19
votes
9answers
1k views

Why aren't CPUs bigger? [closed]

CPUs are relatively small, and engineers are constantly trying to make them smaller and get more transistors in the same surface. Why aren't CPUs bigger? If an approximately 260mm2 die can hold 758 ...
11
votes
3answers
537 views

Will a new processor with slower clockspeed run legacy applications faster?

I'm using Linux and have an old P4 with about 3 GHz clock speed. Will a newer chip that had slower clock speed run my legacy applications faster or slower? I only use one application at a time, an ...
1
vote
2answers
209 views

Clock frequency, number of cores , threads

I'm really confused. What determines the speed of the CPU/processor? Some compared a dual core with 2.8ghz and a 2.4ghz quad-core and say the quadcore is better. But when it comes to a dual core ...
9
votes
0answers
278 views

Why did CPU clock speeds stop increasing? [duplicate]

Possible Duplicate: Has CPU speed already broken Moore's law? Additional Reading: Whats the deal with these new lower clock speed CPUs on Laptops? Can they still run apps well? Is a ...
2
votes
2answers
2k views

How can I manually adjust a Core 2 Duo T5550's clock in Windows 7?

In Linux there is a manual control for the CPU's clock, which allows the user to precisely specify each core's frequency. In my case the available options are "Auto", "900MHz", "1.3GHz", and "1.8GHz". ...
3
votes
1answer
151 views

Which property of CPUs is good for what?

Back in the days clock frequency used to be THE criteria to compare CPUs (or perhaps you had to take into account whether it was a DX or SX). The world was simple back then, but in these fast evolving ...
2
votes
5answers
2k views

Whats the deal with these new lower clock speed CPUs on Laptops? Can they still run apps well?

I'm looking at some new laptops, and I'm seeing the AMD Neo CPUs at 1.5GHz, and some of the new Intels at 1.3-1.8GHz. The laptops they are on come well supplied in terms of RAM (up to 8GB) and Video ...
16
votes
10answers
31k views

How do I calculate clock speed in multi-core processors?

Is it correct to say, for example, that a processor with four cores each running at 3GHz is in fact a processor running at 12GHz? I once got into a "Mac vs. PC" argument (which by the way is NOT the ...
6
votes
2answers
794 views

How far do electrons physically move in a single clock cycle in a (theoretical) 4GHz processor?

I was musing last night about computers and processors and this video of a 6-bit digital adding machine, and I know that 4 GHz seems to be the practical limit of mass-produced CPUs of the current era. ...
0
votes
2answers
521 views

How to change microprocessor Clock Speed

How to change microprocessor Clock Speed for Inter P III and Intel GS810 Motherboard ?
10
votes
4answers
559 views

Why are there different clockspeeds and timings on RAM?

I don't consider myself a novice when it comes to building computers or computer hardware in general, but I've never taken the time to fully understand RAM. Can somebody tell me why there is a need ...