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SCSI Port
Posts: 97
Registered: ‎04-25-2011
Location: Atlanta, GA USA
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Accepted Solution

X220t - Core i5 vs Core i7

Will the 2.7 GHz Core i7 generate more heat and use more power - i.e. shorten battery time - than the 2.5 GHz Core i5?

Posts: 20,904
Topics: 128
Kudos: 1,259
Solutions: 1,344
Registered: ‎12-19-2008
Location: Australia, Melbourne

Re: X220t - Core i5 vs Core i7

yes it will, but only by a small margin. Performance difference between these two machines aren't big either.
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
SCSI Port
Posts: 97
Registered: ‎04-25-2011
Location: Atlanta, GA USA
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Re: X220t - Core i5 vs Core i7

[ Edited ]

Thanks.  Price diff is US$190.00.  If the performance diff is not that big, I think I'll just save that $190 for something else.  Thanks again.

Token Ring
Posts: 161
Registered: ‎12-06-2010
Location: United States
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Re: X220t - Core i5 vs Core i7

Yeah. The performance difference is barely noticeable. You're pretty much paying the premium for the "best" you can get.

Punch Card
Posts: 12
Registered: ‎04-19-2011
Location: San Francisco, CA
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Re: X220t - Core i5 vs Core i7

What do you think about i3 vs i5 then? Other than clock speed, I think i3 lacks Turbo Boost. Is that really worth it?

Posts: 20,904
Topics: 128
Kudos: 1,259
Solutions: 1,344
Registered: ‎12-19-2008
Location: Australia, Melbourne

Re: X220t - Core i5 vs Core i7

Apart from the lack of turbo boost, the i5 also has more chipset instructions then the i3 cpu, mainly lacking the Intel's vPro technology virtualizaton and AES encryption acceleration technology.

So whether it is worth or not depends on your usage.
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft