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Old 04-18-2006, 08:37 PM   #1
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Default Processor Speeds

Right, can some one explain processor speeds and what exactly they are measuring? why r AMD slower than Intels as far a stated ghzs, and how come they out perform them? and what is the deal with macs? MPH is how many miles you can cover in and hour so what is ghz? cheers guys!
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Old 04-18-2006, 08:38 PM   #2
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Default Re: Processor Speeds

The gigahertz, abbreviated GHz, is a unit of alternating current (AC) or electromagnetic (EM) wave frequency equal to one thousand million hertz (1,000,000,000 Hz). The gigahertz is used as an indicator of the frequency of ultra-high-frequency (UHF) and microwave EM signals and also, in some computers, to express microprocessor clock speed.

An EM signal having a frequency of 1 GHz has a wavelength of 300 millimeters, or a little less than a foot. An EM signal of 100 GHz has a wavelength of 3 millimeters, which is roughly 1/8 of an inch. Some radio transmissions are made at frequencies up to hundreds of gigahertz. Personal computer clock speeds are increasing month by month as the technology advances, and reached the 1 GHz point in March of 2000, with a processor from AMD, closely followed by a 1 GHz Pentium 3 from Intel.

Other commonly-used units of frequency are the kHz, equal to 1,000 Hz or 0.000001 GHz, and the MHz, equal to 1,000,000 Hz or 0.001 GHz.


lol does that explain it?


or more to the point, generally speaking the higher the GHz the faster the processor(clock speed) but does not mean that its a faster processor overall. example of that would be an AMD 64-bit running at 2.0GHz compared to an intel celeron running at 2.8GHz... AMD would stomp the celeron
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Old 04-18-2006, 08:42 PM   #3
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Default Re: Processor Speeds

my god, that is a speedy reply! it does, but, for example i have a 1.8ghz lappy that will easily keep up with my 2.5ghz AMD Barton, why?
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Old 04-18-2006, 08:43 PM   #4
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Default Re: Processor Speeds

there are lot of things that change performance. HDD, FSB, Processor Architecture, RAM, CPU Data path etc.
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Old 04-18-2006, 08:45 PM   #5
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Default Re: Processor Speeds

AMD's are far better for gaming because of their integrated memory controller, while intel are better for multitasking, and media.
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Old 04-18-2006, 08:47 PM   #6
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Default Re: Processor Speeds

1.8GHz Intel Pentium M 760-2mb level 2 Cache, i know its not as fast as a desktop, it just intrests me that the new intel duo processoers have a slower stated clock speed yet must be faster than the older versions. What infomations does the GHZ transmission transmit (if you know what i mean) (and my laptop runs HL2 fine!!which is why i am wondering about all this GHZ stuff)
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Old 04-18-2006, 08:47 PM   #7
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Default Re: Processor Speeds

whats an integrated memory controller? like an extra 128mb of ram in the cpu?
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Old 04-18-2006, 08:48 PM   #8
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Default Re: Processor Speeds

your processor is basicly put. the "brain" of the computer, it does about 95% of the thinking for the most part.
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Old 04-18-2006, 08:50 PM   #9
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Default Re: Processor Speeds

sorry i'm lost what do u mean intergrated memory controller?
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Old 04-18-2006, 08:52 PM   #10
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Default Re: Processor Speeds

from the AMD Website "Yields fast computational processing for increased performance and productivity" more info can be found here http://www.amd.com/us-en/Processors/...6_8804,00.html
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Old 04-18-2006, 08:55 PM   #11
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Default Re: Processor Speeds

cheers guys i know what a CPU does in theory but what is it actually doing? why does a centrino rn at a lower speed but still perfom well compared to a desktop? and why r Mac processers so much more efficient?
(thanks for the quick reply by the way!)
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Old 04-18-2006, 08:56 PM   #12
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Default Re: Processor Speeds

Quote:
Originally Posted by uid=[0]
there are lot of things that change performance. HDD, FSB, Processor Architecture, RAM, CPU Data path etc.

as before
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Old 04-18-2006, 08:56 PM   #13
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Default Re: Processor Speeds

well macs use intels now.
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Old 04-18-2006, 08:57 PM   #14
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Default Re: Processor Speeds

Quote:
Originally Posted by john123
well macs use intels now.
some do yes, however is a new implimentation for MAC OSX to support the intel processor architecture
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Old 04-18-2006, 09:00 PM   #15
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Default Re: Processor Speeds

cheers for the help guys but what the difference between a centrino running at 1.8ghz and a Intel Pentium 4 630 "LGA775 Prescott" 3.0GHz (800FSB) with HT Technology is it all down to Variables such as FSB ect?
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Old 04-18-2006, 09:07 PM   #16
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Default Re: Processor Speeds

Quote:
Originally Posted by uid=[0]
some do yes, however is a new implimentation for MAC OSX to support the intel processor architecture
yes i know, thats why im running it on my pc
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Old 04-18-2006, 09:27 PM   #17
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Default Re: Processor Speeds

The clock speed is only one part of the processor. Many other things determine its performance.

In simple terms:

The processor clock determines when the processor is allowed to execute calculations. So obviously the higher the clock speed the more calculations it can execute.

Now, from my A-level Computing class I have learned that AMD processors do more calculations per 'tick' of the clock than INTELs, therefore they can run at lower clock speeds but still outperform INTELs.
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Old 04-18-2006, 09:28 PM   #18
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Default Re: Processor Speeds

that is very true, i think its like 1.5-2 calculations per cycle as to a p4 is like .5 per cycle. i dont recall exactly but its something close to that
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Old 04-18-2006, 09:49 PM   #19
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Default Re: Processor Speeds

Also, L2 caches make a difference. That centrino laptop got like 2 mb of L2 cache. Thats speedy stuff!
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Old 04-19-2006, 12:09 AM   #20
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Default Re: Processor Speeds

ok if you were to choose from two of these processors which one would you choose and y ?
1.AMD Athlon 64 FX60 Toledo 1GHz HT Socket 939 Dual Core Processor
64 bit Support: Yes
Hyper-Transport Support: Yes
L1 Cache: 128KB+128KB
L2 Cache: 2 x 1MB
Multi-Core: Dual-Core
Multimedia Instruction: MMX, SSE, SSE2, SSE3, 3DNOW! Professional
Operating Frequency: 2.6GHz
Process Type: 90 nm
Series: Athlon 64 FX
Voltage: 1.30-1.35V
or
2. Intel Pentium Extreme Edition 955 Presler 1066MHz FSB LGA 775
64 bit Support: Yes
Hyper-Threading Support: Yes
L1 Cache: 24KB+32KB
L2 Cache: 2 x 2MB
Multi-Core: Dual-Core
Multimedia Instruction: MMX, SSE, SSE2, SSE3
Operating Frequency: 3.46GHz
Process Type: 65 nm
Series: Pentium Extreme Edition
Voltage: 1.25-1.4V
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