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Difference between Intel processors?



 
 
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  #1  
Old September 7th 08, 12:34 PM posted to comp.sys.intel
Sanny
external usenet poster
 
Posts: 2
Default Difference between Intel processors?

Intel nominclature is very difficult to understand.

I wish to Upgrade my computer.

Currently I have 3.0 Ghz Pentium Computer.

Latest Computers are as follows.

1. Dual Core
2. Core 2 Duo
3. Quad Core
4. Core2 Quad.

What does this "Core 2" means.

And I find new processors at 2.5 GHz then how they will be faster than
my 3.0 Ghz computer.

I am waiting for 6 Ghz, 12 Ghz computers but Intel is not increasing
the frequency.

Does adding 2/ 4 cores speed up it by a factor of 2 or 4?

Bye
Sanny
  #2  
Old September 7th 08, 03:23 PM posted to comp.sys.intel
John Dallman
external usenet poster
 
Posts: 18
Default Difference between Intel processors?

In article
,
(Sanny) wrote:

Intel nominclature is very difficult to understand.


If you don't track it as it develops, it certainly is.

Currently I have 3.0 Ghz Pentium Computer.


No, you have a 3.0 GHz Pentium 4 computer. Pentium, Pentium II, Pentium
III, and Pentium 4 are all separate models of processor, at least at a
marketing level, and mostly so internally too. For an analogy, they're
about as different as the Boeing aircraft 707, 727, 737 and 747.

Latest Computers are as follows.

1. Dual Core
2. Core 2 Duo
3. Quad Core
4. Core2 Quad.

What does this "Core 2" means.


There are several concepts tangled together here. Your Pentium 4 has a
single processor "core". The successor "Pentium D" had two cores, on the
same chip. This gave much the same effect as having two separate
processors in separate sockets, but was cheaper to manufacture. So a
"dual core" has two processor cores in one package, and a "quad core"
has four processor cores in one package.

"Core 2" is a new brand name. It has replaced "Pentium" as Intel's main
brand name for their processors. So a "Core 2 Duo" is a dual-core
processor of the current brand, and a "Core 2 Quad" is a quad-core
processor of the current brand.

And I find new processors at 2.5 GHz then how they will be faster than
my 3.0 Ghz computer.


You know how when you bought that machine and for several years
previously Intel were saying that clockspeed was the thing that
mattered? Well, that was "marketing", otherwise known as describing
things in the most favourable way possible for intel without actually
lying. And that's definitely using a salesman's definition of what
constitutes lying.

Clockspeed is only one of the things that affects the actual amount of
work a processor can do. For another example, think of a car engine. You
can make a small-capacity one that develops, say, 100 horsepower at high
RPM. Or you can make a larger-capacity one that develops the same
horsepower at a lower RPM. The Pentium 4 is like the former; the Core 2
is like the latter. Clockspeed is like RPM; actual computing power is
like horsepower. Intel switched strategies for reasons that form the
answer to your next question.

I am waiting for 6 Ghz, 12 Ghz computers but Intel is not increasing
the frequency.


You will wait a very long time indeed. Decades, I reckon. Intel did
indeed plan to produce Pentium 4 successors at those clock speeds.
Unfortunately, the laws of physics turned out not to be cooperating with
the idea. At around 4GHz in the lab, they found that the processors just
consumed a whole lot more power, got much hotter, and didn't actually
run any faster. The fastest Pentium 4s they ever sold were about 3.8GHz
and those are no longer available.

A single core of a 2.5GHz Core 2 Duo can do between one-and-a-half and
twice as much work as a 2.5GHz Pentium 4. The speed-up depends on what
kind of code you are running and what kind of processor it was compiled
for. The idea of a simple "processor speed" was only every a
simplification for sales purposes.

The enhanced "Penryn" version can do about 10% more work per GHz, and
the forthcoming "Nelahem" are supposed to be more capable yet. So you
could say that effective clock speeds on the Pentium 4 clock scale are
past 5GHz and still increasing. However, the rate of increase is much
slower than it was in the days of the Pentium III and early Pentium 4.

No, nobody likes this. Unfortunately there isn't much to be done about
it. The amount of money to be made from overcoming is vast, and the chip
manufacturers are trying their best, but they are only making slow
progress.

Does adding 2/ 4 cores speed up it by a factor of 2 or 4?


No. It means you can run more programs at once without them slowing it
down. If the software you want to run fast has been written or
re-written to use multiple processors in some way, you will get some
speed-up from that, but it is very rare for it to be as big as x2 or x4.

Computers are no longer increasing in useful power as fast as they used
to. You'll have get used to it, unless you have some utterly radical,
yet practical, engineering ideas, or have the power to alter the laws of
physics.

--
John Dallman

"C++ - the FORTRAN of the early 21st century."
  #3  
Old September 7th 08, 04:57 PM posted to comp.sys.intel
Sanny
external usenet poster
 
Posts: 2
Default Difference between Intel processors?

On Sep 7, 7:23*pm, (John Dallman) wrote:
In article
,

(Sanny) wrote:
Intel nominclature is very difficult to understand.


If you don't track it as it develops, it certainly is.

Currently I have 3.0 Ghz Pentium Computer.


No, you have a 3.0 GHz Pentium 4 computer. Pentium, Pentium II, Pentium
III, and Pentium 4 are all separate models of processor, at least at a
marketing level, and mostly so internally too. For an analogy, they're
about as different as the Boeing aircraft 707, 727, 737 and 747.

Latest Computers are as follows.


1. Dual Core
2. Core 2 Duo
3. Quad Core
4. Core2 Quad.


What does this "Core 2" means.


There are several concepts tangled together here. Your Pentium 4 has a
single processor "core". The successor "Pentium D" had two cores, on the
same chip. This gave much the same effect as having two separate
processors in separate sockets, but was cheaper to manufacture. So a
"dual core" has two processor cores in one package, and a "quad core"
has four processor cores in one package.

"Core 2" is a new brand name. It has replaced "Pentium" as Intel's main
brand name for their processors. So a "Core 2 Duo" is a dual-core
processor of the current brand, and a "Core 2 Quad" is a quad-core
processor of the current brand.

And I find new processors at 2.5 GHz then how they will be faster than
my 3.0 Ghz computer.


You know how when you bought that machine and for several years
previously Intel were saying that clockspeed was the thing that
mattered? Well, that was "marketing", otherwise known as describing
things in the most favourable way possible for intel without actually
lying. And that's definitely using a salesman's definition of what
constitutes lying.

Clockspeed is only one of the things that affects the actual amount of
work a processor can do. For another example, think of a car engine. You
can make a small-capacity one that develops, say, 100 horsepower at high
RPM. Or you can make a larger-capacity one that develops the same
horsepower at a lower RPM. The Pentium 4 is like the former; the Core 2
is like the latter. Clockspeed is like RPM; actual computing power is
like horsepower. Intel switched strategies for reasons that form the
answer to your next question.

I am waiting for 6 Ghz, 12 Ghz computers but Intel is not increasing
the frequency.


You will wait a very long time indeed. Decades, I reckon. Intel did
indeed plan to produce Pentium 4 successors at those clock speeds.
Unfortunately, the laws of physics turned out not to be cooperating with
the idea. At around 4GHz in the lab, they found that the processors just
consumed a whole lot more power, got much hotter, and didn't actually
run any faster. The fastest Pentium 4s they ever sold were about 3.8GHz
and those are no longer available.

A single core of a 2.5GHz Core 2 Duo can do between one-and-a-half and
twice as much work as a 2.5GHz Pentium 4. The speed-up depends on what
kind of code you are running and what kind of processor it was compiled
for. The idea of a simple "processor speed" was only every a
simplification for sales purposes.

The enhanced "Penryn" version can do about 10% more work per GHz, and
the forthcoming "Nelahem" are supposed to be more capable yet. So you
could say that effective clock speeds on the Pentium 4 clock scale are
past 5GHz and still increasing. However, the rate of increase is much
slower than it was in the days of the Pentium III and early Pentium 4.

No, nobody likes this. Unfortunately there isn't much to be done about
it. The amount of money to be made from overcoming is vast, and the chip
manufacturers are trying their best, but they are only making slow
progress.

Does adding 2/ 4 cores speed up it by a factor of 2 or 4?


No. It means you can run more programs at once without them slowing it
down. If the software you want to run fast has been written or
re-written to use multiple processors in some way, you will get some
speed-up from that, but it is very rare for it to be as big as x2 or x4.

Computers are no longer increasing in useful power as fast as they used
to. You'll have get used to it, unless you have some utterly radical,
yet practical, engineering ideas, or have the power to alter the laws of
physics.

--
John Dallman * * * * * * * * * * * * * * * * * * * *
* * * * * "C++ - the FORTRAN of the early 21st century."


Thanks for your good Suggestion and analysing various processors.

Bye
Sanny


  #4  
Old September 7th 08, 05:26 PM posted to comp.sys.intel
Yousuf Khan
external usenet poster
 
Posts: 914
Default Difference between Intel processors?

Sanny wrote:
Intel nominclature is very difficult to understand.

I wish to Upgrade my computer.

Currently I have 3.0 Ghz Pentium Computer.

Latest Computers are as follows.

1. Dual Core
2. Core 2 Duo
3. Quad Core
4. Core2 Quad.

What does this "Core 2" means.


There used to be the original Pentium, then Pentium II, Pentium III, and
then Pentium 4. Then Intel came up with a new brand name called "Core",
which replaces Pentium as their top-end processor. And just like there
were several evolutions to Pentium from the original to Pentium 4, there
has now been two evolutions of Core already, from original to Core 2.
Actually Intel is getting ready to go to the next generation of Core,
which it will call Core i7 rather than Core 3 for some reason.

Also Core comes with a number of different cores. Core 2 Solo came with
one core, Core 2 Duo came with two cores, Core 2 Quad came with four
cores, etc.

And I find new processors at 2.5 GHz then how they will be faster than
my 3.0 Ghz computer.


They are more efficient than the old Pentium processors. They can do
more work per Mhz than your Pentium. Think of it like they have longer
legs than a Pentium. A short-legged Pentium moving its legs really
quickly may not be able to keep up with long-legged Core moving its legs
less quickly.

I am waiting for 6 Ghz, 12 Ghz computers but Intel is not increasing
the frequency.


They may not come for at least a decade from now. The more you increase
the Mhz, the more energy it burns up. Instead they are trying to make
the processors more efficient, and well as double them up with more
cores, etc.

Does adding 2/ 4 cores speed up it by a factor of 2 or 4?


No, usually you'll be lucky to get 50% speed up. However, having more
cores does mean that you can split your programs up among different
cores simultaneously. So it's better for multitasking many programs,
rather than simply making one program much faster.

Yousuf Khan
  #5  
Old September 26th 08, 12:20 AM
ebinezer ebinezer is offline
Junior Member
 
First recorded activity by HardwareBanter: Sep 2008
Posts: 3
Default

We can easily differentiate what are the different Intel Processors, each and every new one is having heavy configuration.
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