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I3 to I5 worth it? - Page 2

post #11 of 30
the i3 is on par with a Phenom II X4 965, its more than capable as a gaming processor for the rest of 2011 and 2012

once your warranty is up in 2013, then I would get the the i5.
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post #12 of 30
2 core to 2 core (4 threads)? lol that gotta be the worst investment you'd make in upgrading laptop. Turbo boost is quite nice but it outputs SO MUCH heat. I have a i5-2410m and I have to use throttlestop to stop it from turbo.
    
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post #13 of 30
Thread Starter 
Quote:
Originally Posted by guyladouche;15419576 
I would say no--for a couple reasons.

First reason is speculation that the dell motherboard might not support the i5. And (assuming you were considering the 2500k, it would be a waste since your bios are probably locked so you wouldn't be able to overclock it).

Second is it turbos to 2.9GHz. I'm not sure what graphics card you have (and I'm assuming you're concerned about graphics performance since you mentioned your GPU), but I hesitate to imagine that you're cpu-limited with an i3 at 2.1GHz. In games optimized for more cores you *might* see a minimal improvement in fps with an i5.

But for $250? Even if it worked, I would still say no.

edit--I missed a couple things and was wrong about the turbo--I got confused, so forget the fact that I was talking about the turbo on the i3, which it obviously doesn't have. smile.gif

Also, with a laptop, I think you definitely won't get any graphics performance with a faster processor.

I would get better graphics performance with the I5, I would get the max out of the IGP, the amount of performance increase is questionable, but there would be one.
Quote:
Originally Posted by robwadeson;15419672 
2 core to 2 core (4 threads)? lol that gotta be the worst investment you'd make in upgrading laptop. Turbo boost is quite nice but it outputs SO MUCH heat. I have a i5-2410m and I have to use throttlestop to stop it from turbo.

Actually the I3 has HT as well, so it would be the same cores, and same threads, I would just get the turbo boost on the cpu, and 200mhz higher gpu clock.
post #14 of 30
I thought u had a dedicated GPU, but since u don't I guess the i5 is a better option if u can handle having a void warranty. The i3 graphics suck.
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post #15 of 30
IDK about the i3's if they have Turbo Boost or not, but my i5 2410 has 2 cores/4threads and will Turbo Boost up to 2.7GHz in multi-thread using apps, and it will Turbo Boost to 2.9GHz in single-thread apps. I tried folding using all cores and it will only use 2.7GHz because it's multi-threaded.
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post #16 of 30
Thread Starter 
Quote:
Originally Posted by dlee7283;15419731 
I thought u had a dedicated GPU, but since u don't I guess the i5 is a better option if u can handle having a void warranty. The i3 graphics suck.

The I3 IGP, and the I5 IGP is the same, they are identical except for the fact that you can go to the max supported frequency with the I5, where as I can only go to 1100mhz with the I3.
Quote:
Originally Posted by XanderDylan;15419784 
IDK about the i3's if they have Turbo Boost or not, but my i5 2410 has 2 cores/4threads and will Turbo Boost up to 2.7GHz in multi-thread using apps, and it will Turbo Boost to 2.9GHz in single-thread apps. I tried folding using all cores and it will only use 2.7GHz because it's multi-threaded.

They have turbo boost, but only on the IGP, the I5 has it for the IGP and the CPU. 2.7ghz is still better than 2.1ghz.
post #17 of 30
Quote:
Originally Posted by Mattb2e;15419706 
I would get better graphics performance with the I5, I would get the max out of the IGP, the amount of performance increase is questionable, but there would be one.



Actually the I3 has HT as well, so it would be the same cores, and same threads, I would just get the turbo boost on the cpu, and 200mhz higher gpu clock.

I see--however, I don't think that even with 200MHz more gpu clock speed, that an intel IGP would give you the performance worth $250. Let's put it this way--if the IGP at 1GHz isn't giving decent performance, then a CPU with a higher turbo frequency and 200MHz more on the IGP probably won't help to a noticeable extent in games.

Regardless, it doesn't appear that dell even offers anything but the i3, which makes me think that the i5 probably wouldn't be supported.
    
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post #18 of 30
First off, I want to dispel the myth that CPU power bump between an i3 and i5 even matters.
http://www.notebookcheck.net/Review-Intel-Sandy-Bridge-Processors-Gaming-Performance.49600.0.html
Gotta love the Germans.


Personally, I think the performance difference between the i3 and i5 IGP is nearly negligible. The i5 may be a tiny bit better, but if you care about graphics, just get an A4 or an A6. HD 3000 is HD 3000, and it's not really meant for gaming any way you spin it.
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post #19 of 30
$250 CPU upgrade for a $500 laptop... is this a serious question?!? If you really want a faster CPU, return that laptop and get an Ideapad Y470 for $700 with an i5 or $750 with an i7-2630QM. Both have Nvidia 550M Optimus graphics. http://shop.lenovo.com/SEUILibrary/controller/e/web/LenovoPortal/en_US/builder.workflow:Enter?mtm-item=%3A000000F3%3A00004494%3A http://shop.lenovo.com/SEUILibrary/controller/e/web/LenovoPortal/en_US/builder.workflow:Enter?mtm-item=%3A000000F3%3A00004495%3A

In the future it's usually not a good idea to buy a laptop with the intent of upgrading the CPU (or GPU). If you must.. wait a couple years until the prices drop on used i5 cpu's and it's a viable option.
 
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post #20 of 30
Wow there's lots of misunderstandings about mobile processors!

To answer your question, not even close, not on a system in that price range.

If the question was should I configure my laptop to be built with an i5 over an i3, the answer is a resounding yes... But an after the fact upgrade? Nah, you won't get your money's worth. CPU upgrades in laptops pretty much only make sense for enthusiasts, like going from a 2630qm to a 2960xm, for pretty much any other scenario though I'd say no, unless maybe you got the i5 for free.
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