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Sandy Bridge Core i7 Refresh

Teaser
Intel refreshes the high end Core i7 mobile CPUs and offers now higher clock speeds at the same price point. We tested the fastest dual-core of the new line up, the Core i7-2640M.

On average, the old Core i7-2620M is about 3% (in the Lenovo X220T), 7% (Fujitsu S751), respectively 8% (Vostro 3350) slower than the Core i7-2640M (see for specs and details). As price and features are similar, the new i7 CPUs are a clear recommendation. We also plan to benchmark the new quad core i7 CPUs. Till then, take a look at our processor benchmark list.

 

 

 

 

Super Pi mod 1.5 XS 1M - 1M (sort by value)
Sandy Bridge Core i7 Refresh
11.66 s * ∼3%
Dell Vostro 3350 (Vostro0131)
11.62 s * ∼3% -0%
Lenovo ThinkPad X220T 4298-2YG
11 s * ∼2% +6%
Super Pi mod 1.5 XS 2M - 2M (sort by value)
Sandy Bridge Core i7 Refresh
26.72 s * ∼1%
Dell Vostro 3350 (Vostro0131)
27.11 s * ∼1% -1%
Lenovo ThinkPad X220T 4298-2YG
27 s * ∼1% -1%
Super Pi Mod 1.5 XS 32M - 32M (sort by value)
Sandy Bridge Core i7 Refresh
637 s * ∼3%
Dell Vostro 3350 (Vostro0131)
644 s * ∼3% -1%
Lenovo ThinkPad X220T 4298-2YG
631 s * ∼3% +1%

Legend

 
Sandy Bridge Core i7 Refresh Intel Core i7-2640M, Intel HD Graphics 3000, Hitachi Travelstar 5K500 HTS545025B9SA02
 
Fujitsu LifeBook S751 vPro/SSD/UMTS Intel Core i7-2620M, Intel HD Graphics 3000, Toshiba THNSFC128GBSJ
 
Dell Vostro 3350 (Vostro0131) Intel Core i7-2620M, AMD Radeon HD 6470M, Seagate Momentus 7200.5 ST9750420AS
 
Lenovo ThinkPad X220T 4298-2YG Intel Core i7-2620M, Intel HD Graphics 3000, Seagate Momentus Thin ST320LT000-9VL142

* ... smaller is better

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Klaus Hinum, 2011-09- 4 (Update: 2020-06- 8)