Intel Core i7 2.93 GHz vs 2.66 GHz

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Where might I find some speed compairsons between the Intel Core i7
2.93 GHz and 2.66 GHz.  I am wondering if it is worth the extra money
to purchase the 2.93 right now or if I should just stick with the
2.66.  My main focus is image processing and video editing.

Re: Intel Core i7 2.93 GHz vs 2.66 GHz

Cartoper wrote:
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The i7 has four physical cores and four virtual cores (Hyperthreading),
for a total of eight performance charts in Task Manager.

Apparently, a program such as Microsoft Flight Simulator FSX SP1,
will refuse to schedule threads for the virtual cores. Sometimes,
this is a good thing - Hyperthreading is not always a win, at least
it wasn't always a win with processors like Prescott. Some people
got better performance on certain applications, with
Hyperthreading disabled. On Prescott, the virtual core might
improve the overall processor performance to a level of 1.1x
(10% better).

Not all multimedia programs are prepared to run threads on
all available processing resources. Sometimes, you have to
dig up a patch to the program, to get it to use more cores
and run faster. So be prepared to do thorough research - it
might tell you, that in addition to buying your new hardware,
you also have to invest in newer versions of software, to
get all possible benefits. Some multimedia software
only executes threads on two cores, so you don't get the
boost you might have expected.

Some multimedia programs are also set up now, to gain
a benefit from the GPU (graphics processing unit on the
video card). Again, try to research which products do this
first, and try to find reviews of how much speedup was offered.
The processing elements inside the GPU are not perfectly
general purpose, and work best on specific kinds of problems.
Not every possible operation will be accelerated - some will
still be done by the main CPU.

I find, in general, that software web sites offer poor assistance
in buying hardware, making it difficult to see what hardware is
going to give the best results. So the above research will not be
easy, by any means. Many times, you'll need to tap into the results
of other customers like yourself, who have already tried this stuff.


Re: Intel Core i7 2.93 GHz vs 2.66 GHz

On Sun, 8 Feb 2009 07:46:24 -0800 (PST), Cartoper

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The 2.9GHz is about 10% faster and 85% higher cost.  Unless
your whole system costs over ~$1600 it probably isn't worth
the extra money, better to save the money and buy an upgrade
CPU later on when cost has gone down and clockspeed has gone

Of course there's also the option of a mild overclock, heat
will tend to be the limitig factor on top clockspeed of
either of these CPU but they'll both give you far more than
10% benefit from an o'c, though for quiet use even without
overclocking you might consider buying a better heatsink
than comes w/retail packaged CPUs.

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