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SCSI Port
Posts: 101
Registered: ‎04-25-2011
Location: Atlanta, GA USA
Message 1 of 6 (3,102 Views)

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: 21,009
Topics: 128
Kudos: 1,272
Solutions: 1,357
Registered: ‎12-19-2008
Location: Australia, Melbourne
Message 2 of 6 (3,010 Views)

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: 101
Registered: ‎04-25-2011
Location: Atlanta, GA USA
Message 3 of 6 (3,004 Views)

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
Message 4 of 6 (2,860 Views)

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
Message 5 of 6 (2,818 Views)

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: 21,009
Topics: 128
Kudos: 1,272
Solutions: 1,357
Registered: ‎12-19-2008
Location: Australia, Melbourne
Message 6 of 6 (2,792 Views)

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
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