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Topic: Clock speed

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	Clock rate - Wikipedia, the free encyclopedia
		The clock rate is the fundamental rate in cycles per second, measured in hertz, at which a computer performs its most basic operations such as adding two numbers or transferring a value from one processor register to another.
		The clock rate of a CPU is normally determined by the frequency of an oscillator crystal.
		This superiority in clock speed, however, was meaningless; the PowerPC and Pentium CPU architectures were completely different.
	en.wikipedia.org /wiki/Clock_speed (555 words)

	clock speed - a definition from Whatis.com
		In a computer, clock speed refers to the number of pulses per second generated by an oscillator that sets the tempo for the processor.
		The clock speed is determined by a quartz-crystal circuit, similar to those used in radio communications equipment.
		Clock speed is one measure of computer "power," but it is not always directly proportional to the performance level.
	whatis.techtarget.com /definition/0,,sid9_gci211799,00.html (388 words)

	Instructions Per Cycle - Wikipedia, the free encyclopedia
		The number of instructions per second for a processor can be derived by multiplying the instructions per clock and the clock speed (measured in cycles per second or Hz) of the processor in question.
		The number of instructions executed per clock is not a constant for a given processor; it depends on how the particular software being run interacts with the processor, and indeed the entire machine, particularly the memory hierarchy.
		These factors include the processor architecture, the internal layout of the machine, the speed of the disk storage system, the speed of other attached devices, the efficiency of the operating system, and most importantly the high level design of the application software in use.
	en.wikipedia.org /wiki/Instructions_Per_Clock (484 words)

	Clock Speed
		Clock speeds are expressed in megahertz (MHz), 1 MHz being equal to 1 million cycles per second.
		Ideally, the CPU clock speed and the bus clock speed should be the same so that neither component slows down the other.
		In practice, the bus clock speed is often slower than the CPU clock speed, which creates a bottleneck.
	www.neurobit.com /Clock_Speed.htm (275 words)

	Clock Speed
		One get a clock speed from the mainboard of 100 MHz, but since it transfers data 4 times per clock tick its "Font Side Bus" (FSB) to memory and I/O is said to be four times the clock or 400 MHz.
		Their speed is often set in the BIOS setup panels that appear when the user presses DEL or another key during the power up boot.
		DDR (double data rate) memory transfers data twice per cycle (on the tick and again on the tock) and is therefore often quoted as having a speed that is twice the actual clock speed (200, 266, 333, or 400 MHz).
	www.yale.edu /pclt/PCHW/clockidea.htm (2471 words)

	What is Clock Speed? Microprocessor's Internal Speed Quartz (Site not responding. Last check: 2007-10-30)
		The clock speeds are the frequencies which determine how fast devices that are connected to the system bus operate.
		The speed is measured in millions of cycles per second (MHz or megahertz) and is generated by a quartz crystal on the motherboard which acts as a kind of metronome.
		Devices that are synchronized with the clock may run faster or slower but their speed is determined by multiplying or dividing a factor by the clock speeds.
	bugclub.org /beginners/processors/ClockSpeed.html (76 words)

	Adjustment and regulation of pendulum for clock speed
		Balance Wheel Clock - Adjustments to this type of clock require a bit of mechanical skill and there are enough variables in design such that adjustment should be discussed in depth for the specific clock with the clockmaker before adjustment by the owner.
		Wall Clocks – The speed adjustment for wall clocks is located at the bottom of the pendulum beneath the circular pendulum bob. This adjustment mechanism is usually a nut or wheel on a threaded rod that allows the length of the pendulum to be changed by turning the nut.
		If the clock is not ticking evenly, then it is out of beat to some degree and will have a loping –uneven sound. Also, the amount of swing of the pendulum after the “tic” will be disproportionate from one side to the other.
	www.kensingtonclock.com /kcsadjust.htm (1236 words)

	Clock Speed - PC ComputerNotes
		The clock speed of a CPU is defined as the frequency that a processor executes instructions or that data is processed.
		This clock speed is measured in millions of cycles per second or megahertz (MHz).
		A frequency divider is used to reduce the speed by 1/3 to accommodate the 33 MHz PCI bus, and another divider to reduce the speed by 12 for the 8 MHz ISA bus.
	www.pccomputernotes.com /clockspeed/clockspeed.htm (538 words)

	Definition of Clock Speed
		Clock speed is the rate at which a processor can complete processing cycles.
		This means a 1.8 GHz processor has twice the clock speed of a 900 MHz processor.
		While the processor's clock speed is a significant indicator of how fast a computer is, it certainly is not the only thing that matters.
	www.sharpened.net /glossary/definition.php?clockspeed (212 words)

	Clock speed
		Also could be called Clock Rate, clock speed is the speed at which the microprocessor executes each instruction.
		The CPU requires a fixed number of clock ticks, or cycles, to execute each instruction.
		Clock Speeds are usually determined in MHz, 1 MHz representing 1 million cycles per second, or in GHz, 1 GHz representing 1 thousand million cycles per second.
	www.computerhope.com /jargon/c/clockspe.htm (86 words)

	A brief history of computer speed
		Speed isn't everything, of course, but, as they say, whatever is in second place is far behind.
		When we refer to the speed of a computer, we're talking about the quickness of the main chip, called the central processing unit or CPU.
		The ones that come out on top are checked at faster and faster clock speeds to make sure they'll hold up, and then they're set to run faster than normal and put into the PC.
	aroundcny.com /technofile/texts/compuspeed90.html (1632 words)

	Does a clock's acceleration affect its timing rate?
		This is often called the "clock postulate", but it applies to much more than just clocks, and in fact it underpins much of advanced relativity, both special and general, as well as the notion of covariance (that is, writing the equations of physics in a frame-independent way).
		In other words, the accelerated clock's rate is identical to the clock rate in a "momentarily comoving inertial frame" (MCIF), which we can imagine is holding an inertial clock that for a brief moment slows to a stop alongside the accelerated clock, so that their relative velocity is momentarily zero.
		The clock postulate is one of the ideas we use to build the theory of gravity known as general relativity.
	math.ucr.edu /home/baez/physics/Relativity/SR/clock.html (2509 words)

	GameSpot:Video Games PC Xbox 360 PS3 Wii PSP DS PS2 PlayStation 2 GameCube GBA PlayStation 3
		There are a number of key factors in card evaluation, including clock speeds, memory, memory interface, and adjustability.
		Bin sorting is a process in which chips are run at clock speeds from the highest supported, on down.
		In our testing, we ran the cards at the highest stable clock rate that could be sustained for a full day, but we didn't test for an extended period of time.
	www.gamespot.com /features/builtforspeed/clock.html (694 words)

	Xilinx : Clock Data Recovery (CDR)
		This solution uses a receiver clock that is slightly faster than the transmitter clock.
		This is ideal for systems where the data and clock are both transmitted to the receiver, or when the date frequency is known.
		If the clock and data are not embedded together, the clock goes out of phase at the receiver end due to skew.
	xilinx.com /products/design_resources/highspeed_design/resource/cdr.htm (460 words)

	NO BULLSHIT Gaming -- The Effects of Clock Speed Part 1
		These tests were conducted at stock speed (2.0 GHz) and in 100 MHz increments to 2.4Ghz to gather enough data to show trends.
		These values scale perfectly with clock speed, keep in mind at 2.4GHz this is a 20% overclock, and is yielding 20% improvement.
		In some cases, performance scaled perfectly with speed, which shows that there is definitely some benefit to higher clocks, even if it doesn't manifest in all tests.
	www.nbsgaming.com /Clockspeed.html (1001 words)

	Speed
		Speed, or performance, is based on a combination of hardware and software issues.
		Most advertisements concentrate only on clock speed, which by itself is a meaningless number (unless comparing two versions of the exact same processor).
		Clock speed is how many cycles occur in a second (higher is better).
	www.osdata.com /holistic/speed/speed.htm (2740 words)

	Clock Speed - MacNN Forums
		I have read that MOT is currently trying to boost the number of operations a G4 can perform at the same clock speed.
		Intel's P3 is at 1gHz, ank likewise for the AMD chip.
		When I was preparing to purchase my computer the speed was a concern of mine, so I researched the situation.
	forums.macnn.com /101/power-mac-archives/48558/clock-speed (374 words)

	EVGA \| Message Boards
		I have read that the core speed can be clocked at different speeds by the Partners.
		A GeForce FX 5900 with a 400 MHz core speed is not an ultra.
		Since the memory is 2.2ns the clock is compatible.
	evga.com /community/messageboard/topic.asp?TOPIC_ID=1071&... (594 words)

	FSB, Clock speed, multiplier
		I understand how the clock speed times the multiplier equals the CPU speed, and have played with increasing the clock speed using jumpers to add on those Mhz.
		Thinking about it now...it may be coincidense but it seems that the FSB is double the clock speed of the motherboard.
		Basically the FSB (Front Side Bus) is the speed of the transfer between the CPU - Northbridge and Memory.
	www.pcreview.co.uk /forums/thread-353.php (455 words)

	Return of Double Clock Speed - Ubuntu Forums
		Well, the Double Clock Speed/50% CPU bug is back, and this time, it's harder to eradicate.
		Apparently the issue (at least for my mobo) stems from the IRQ double thumping the clock.
		The Ubuntu 5.10 final release uses the 2.6.12.9 kernel, the AMD K8 drivers required to autoscale the processor's speed (and hence solve this problem) is included in kernel revision 2.6.13.0 and higher.
	www.ubuntuforums.org /showthread.php?t=75708&highlight=clock (487 words)

	Hardware: CPU clock speed
		But there is no BIOS settings for clock speed (this is laptop, not desktop ^_^ IBM said CPU upgrade itself is impossible.
		If your computer is really running at the reduce speed, it may be a power management setting in your computer.
		After installing the BatteryMaximizer, you'll have a big green batter icon by the system tray (where the clock, volume control, etc) is that indicates the battery level.
	www.experts-exchange.com /Hardware/Q_20646096.html (996 words)

	X-bit labs - Hardware news - Intel Itanium 2 to Get Additional Clock-Speed, Cache.
		Earlier the company planned to clock the low-voltage revision of the chip at 1.20GHz.
		However, even earlier Intel is expected to boost the PSB clock-rate of Itanium 2 processors designed for 2P servers: in Q4 2004 a cut-down flavour of Madison 9M, chip code-named Fanwood, will get a 533MHz Quad Pumped Bus.
		Intel’s president and COO Paul Otellini recently said that the Foxton is a technology to dynamically boost speed of Itanium 2 chips, but he did not outline, whether this applies to dynamic overclocking or dynamic underclocking.
	www.xbitlabs.com /news/cpu/display/20040525070406.html (912 words)

	bit-tech.net \| G70 has 'many' clocks - NVIDIA
		The clock speeds within the chip are dynamic - if you were watching them with an oscilloscope, you'd see the speeds going up and down all the time, as different parts of the chip come under load."
		We asked David what the three visible clocks did (that's the ROP clock, pixel clock and geometry clock if you're still playing catchup).
		Those clocks scale up and down to save power, and this is one of the big features that has kept G70 to a single-slot-heatsink design, and an astoundingly quiet one at that.
	www.bit-tech.net /news/2005/07/07/g70_clock_speed (686 words)

	UVISION DEBUGGER: 8051 CLOCK SPEED VS XTAL SPEED
		For each simulated 8051 derivative, VTREGs are defined for the XTAL speed and the CLOCK speed.
		The CLOCK speed is the speed of the internal instruction clock.
		It is derived by dividing the frequency of the external oscillator (XTAL) by an integer value (usually 12).
	www.keil.com /support/docs/1709.htm (197 words)

	clockspeed.com.au-News
		Placed at Sandown and Flemington in his first two outings through May and June, the bay has trialled stylishly on two occasions lately.
		He comes off a cushy Cranbourne 1000m trial win last Monday when on the speed and simply allowed to cruise down the running.
		And the 1400m assignment fresh suggests Freedman has his up and comer thoroughly primed.
	www.clockspeed.com.au (435 words)

	CNET Bandwidth Meter Speed Test - Bandwidth Test
		The CNET Bandwidth Meter speed test will check the bandwidth of your Internet connection against top DSL, cable modem, and other broadband services.
		Your bandwidth speed may be affected by the following factors: being located outside of the United States, performing other downloads and this test simultaneously, or executing programs that use your bandwidth to monitor other resources.
		The CNET Bandwidth Meter speed test does not currently list Internet access services outside of the United States.
	reviews.cnet.com /7004-7254_7-0.html (179 words)

	Clock speed - PC-Media Tech Forums
		Intel CPU's are multiplier locked, so I don't think you'll have to manually change the multiplier ratio setting to 8.5...but it can't hurt.
		I'm trying to get a handle on how clock speed, processor speed, FSB speed, and the pc100/133,etc. rating for RAM are related?
		In this example 124, 133, 140, and 150 would correspond to the host clock(CPU clock) and 31, 33, 37, and 55(I'm pretty sure you typed 37 and 55 backwards there, Mudhead) correspond to the PCI bus clock.
	forum.pcmech.com /showthread.php?t=24352 (594 words)

	2800+ clock speed - Dev Hardware
		Discuss 2800+ clock speed in the AMD Processors forum on Dev Hardware.
		Set it to 166Mhz and you should be back to your normal speed.
		I can't believe that after nearly a year of OCA selling out to Devshite I am getting E-mails to look at ancient threads, if you need any advice, ask at the forums at www.winhq.net and I will help out there.
	devhardware.com /forums/amd-processors-31/2800-clock-speed-8893.html (727 words)

	Processor clock speed information - PC-Media Tech Forums
		Please could you let me know if it is possible to find out the processor clock speed of a computer using Windows 98/2000?
		I need to check the clock speed of processors installed on a large number of machines.
		I know what you mean...I don't know why MS makes it so hard to find out the speed of the CPU through Windows.
	forum.pcmech.com /showthread.php?t=27753 (244 words)

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