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Is intel core i5 processor better than intel core2duo processor?

Last response: in Laptops & Notebooks
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Anonymous
a b D Laptop
May 5, 2010 2:50:14 PM

Hello,
i'm going to buy a new laptop but confused to buy a laptop with which processor?...
i.m doing engineering in computer sciences and for my needs which processor will be much better?
1.core2duo
2.corei3
3.corei5
cost doesn't matters....
a c 572 D Laptop
a b å Intel
May 5, 2010 3:35:18 PM

Passmark CPU benchmark scores

Pentium C2D T4400 @ 2.20GHz = 1549
Core2 Duo P9600 @ 2.53GHz = 1592
Core2 Duo P8800 @ 2.66GHz = 1891
Core i3 M 330 @ 2.13GHz = 2016
Core i3 M 350 @ 2.27GHz = 2058
Core2 Duo P9700 @ 2.80GHz = 2129
Core2 Duo T9900 @ 3.06GHz = 2310
Core i5 M 430 @ 2.27GHz = 2395
Core i5 M 520 @ 2.40GHz = 2432
Core i5 M 540 @ 2.53GHz = 2463
Core i7 720QM @ 1.60GHz = 3229
Core i7 820QM @ 1.73GHz = 3535

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a c 244 D Laptop
May 5, 2010 3:44:29 PM

Which means: Core i5>i3>C2D :) 
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Anonymous
a b D Laptop
June 24, 2010 3:07:18 PM

But how can the i7 be better when the speed is only 1.73 GHz as opposed to the core 2 duo t9900 with 3.06 GHz. Is there another factor which drives processor speed?
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a b D Laptop
June 24, 2010 4:00:17 PM

Quote:
Hello,
i'm going to buy a new laptop but confused to buy a laptop with which processor?...
i.m doing engineering in computer sciences and for my needs which processor will be much better?
1.core2duo
2.corei3
3.corei5
cost doesn't matters....


Hi there,

The i5 processor is the most powerful of the choices that you presented. As for which one will be better for your major, it depends on what programs you will be using. Since your major is computer science you will probably want to look at at an i3 or an i5. Check out this guide on processor power and speed from PC Scout:http://www.microsoft.com/Windows/pc-scout/laptop-speed-....

Cheers,
Isabella
MSFT Windows Outreach Team
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Anonymous
a b D Laptop
July 1, 2010 4:44:41 AM

Quote:
But how can the i7 be better when the speed is only 1.73 GHz as opposed to the core 2 duo t9900 with 3.06 GHz. Is there another factor which drives processor speed?

This is because the intel i7 has 4 cores but the intel core 2 duo only has 2, this basically means that the more cores it has the faster it will go :D 
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a b D Laptop
July 1, 2010 8:30:41 PM

Quote:
1.73 GHz x 4 cores = 6.92 GHz

3.06 GHz = 2 cores = 6.12 GHz

That is just simple math. Not counting the other factors...


No, no and god no. It is not like having one processor at 6.92ghz. It's more like having 4 individual processors at the base speed doing the work instead of just two or just one. The individual speeds of the processors may be slower, but there are more of them to do the work. There is also the difference of the i7 having Hyper Threading as well.

The "other factors" would include major differences in the architectures of the processors which effect how they run. The Core i series runs on a newer and more efficient architecture than the Core2's.
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July 2, 2010 3:56:40 PM

lostandwandering said:
The individual speeds of the processors may be slower, but there are more of them to do the work. There is also the difference of the i7 having Hyper Threading as well.


Don't forget that the i7 'Turbo Mode' can go up to 3+GHz when only one core is in use, so if you're not using the multithreaded capabilitiies it's a pretty fast single threaded CPU too.

Of course if you're not using the multithreaded capabilities you're probably better off with a higher-clocked i3 or i5 in the first place :) .
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