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Intel Core i7-660UM

Intel 660UM

The Intel Core i7-660UM is a Ultra Low Voltage dual-core processor for small and light laptops. It is clocked with 1.33 - 2.4 GHz (if Turbo Boost is enabled). The 660UM offers the highest TurboBoost of all 1.3 GHz clocked ULV processors (i3-380UM, i5-470UM, i5-560UM). Each core is based on the Nehalem (Westmere) micro-architecture. Hyperthreading enables the Dual Core CPU to handle 4 threads at once (for a better usage of the pipeline). Compared to the Core i7-620M and the 640LM, the 660UM is much slower (due to the lower clock rate) but more power efficient.

A feature of the new Core i7-660UM is the integrated graphics card (called Intel HD Graphics) and memory controller. Both are on a separate die that is still manufactured in 45nm whereas the CPU die is already manufactured in the new 32nm process.

Due to the integrated memory controller, the HyperThreading and Turbo Boost, the  Core i7-660UM is faster than a similar clocked Core 2 Duo (1.33 GHz) in all (us known) applications and benchmarks. Still the Turbo Boost may not trigger very often (sometimes it is even not activated in the BIOS) and therefore the maximum of 2.4 GHz is not very important. All in all the I7-660UM should be faster than a Core 2 Duo SL9300 (1.6GHz).

The 32nm cpu cores of the Westmere generation can also process some new instructions to accelerate AES encryptions. Modern applications that support AES encoding can profit significantly using the new instructions (e.g. the Communications Suite test in the PCMark Vantage boosts up to 70% using AES in the faster Core i5-520M).

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is between 166-500 MHz (Turbo Boost) and therefore the base speed is clearly below the non low voltage versions. The performance should still be faster than the old GMA 4500MHD.

SeriesIntel Core i7
CodenameArrandale

Series: Core i7 Arrandale

Intel Core i7-640M compare2.8 - 3.46 GHz2 / 4 cores4 MB L3
Intel Core i7-620M compare2.66 - 3.33 GHz2 / 4 cores4 MB L3
Intel Core i7-660LM compare2.27 - 3.07 GHz2 / 4 cores4 MB L3
Intel Core i7-640LM compare2.13 - 2.93 GHz2 / 4 cores4 MB L3
Intel Core i7-620LM compare2 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-680UM compare1.47 - 2.53 GHz2 / 4 cores4 MB L3
Intel Core i7-660UM « 1.33 - 2.4 GHz2 / 4 cores4 MB L3
Intel Core i7-640UM compare1.2 - 2.27 GHz2 / 4 cores4 MB L3
Intel Core i7-620UM compare1.06 - 2.13 GHz2 / 4 cores4 MB L3
Clock Rate1333 - 2400 MHz
Front Side Bus2500
Level 2 Cache512 KB
Level 3 Cache4 MB
Number of Cores / Threads2 / 4
Power Consumption (TDP = Thermal Design Power)18 Watt
Transistor Count382+177 Million
Manufacturing Technology32 nm
Die Size81+144 mm2
Max. Temperature105 °C
SocketBGA1288
FeaturesTurbo Boost (2.40 GHz max), Hyper Threading, Enhanced Speedstep, integrated GMA HD 166-500MHz
64 Bit64 Bit support
Architecturex86
Announcement Date09/01/2010

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* Smaller numbers mean a higher performance

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v1.26
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#5 getting avg benchmarks for device 608 +0.003s ... 0.02s

#6 got single benchmarks 608 +0s ... 0.021s

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#8 min, max, avg, median took s +0s ... 0.021s

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Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Core i7

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» Intel Core i7-8709G
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» Intel Core i7-8706G
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» Intel Core i7-8705G
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» Intel Core i7-4940MX
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» Intel Core i7-6920HQ
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» Intel Core i7-5950HQ
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» Intel Core i7-4930MX
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» Intel Core i7-6970HQ
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» Intel Core i7-6870HQ
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» Intel Core i7-4980HQ
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» Intel Core i7-4910MQ
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» Intel Core i7-5850HQ
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» Intel Core i7-5700HQ
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» Intel Core i7-5750HQ
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» Intel Core i7-6820HK
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» Intel Core i7-6820HQ
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» Intel Core i7-6770HQ
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» Intel Core i7-4900MQ
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» Intel Core i7-4960HQ
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» Intel Core i7-6700HQ
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» Intel Core i7-4810MQ
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» Intel Core i7-4870HQ
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» Intel Core i7-4800MQ
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» Intel Core i7-4950HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4860HQ
   4x 2.4 GHz - 3.6 GHz
» Intel Core i7-4720HQ
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-3840QM
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4850HQ
   4x 2.3 GHz - 3.5 GHz
» Intel Core i7-4710HQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-4710MQ
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-8565U
   4x 1.8 GHz - 4.6 GHz
» Intel Core i7-4770HQ
   4x 2.2 GHz - 3.4 GHz
» Intel Core i7-3820QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3740QM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-3720QM
   4x 2.6 GHz - 3.6 GHz
» Intel Core i7-4700HQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4700MQ
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4760HQ
   4x 2.1 GHz - 3.3 GHz
» Intel Core i7-4722HQ
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» Intel Core i7-6600U
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» Intel Core i7-6650U
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» Intel Core i7-5600U
   2x 2.6 GHz - 3.2 GHz
» Intel Core i7-5650U
   2x 2.2 GHz - 3.2 GHz
» Intel Core i7-2640M
   2x 2.8 GHz - 3.5 GHz
» Intel Core i7-5500U
   2x 2.4 GHz - 3 GHz
» Intel Core i7-5550U
   2x 2 GHz - 3 GHz
» Intel Core i7-840QM
   4x 1.86 GHz - 3.2 GHz
» Intel Core i7-2620M
   2x 2.7 GHz - 3.4 GHz
» Intel Core i7-4600U
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» Intel Core i7-4650U
   2x 1.7 GHz - 3.3 GHz
» Intel Core i7-3687U
   2x 2.1 GHz - 3.3 GHz
» Intel Core i7-4510U
   2x 2 GHz - 3.1 GHz
» Intel Core i7-640M
   2x 2.8 GHz - 3.46 GHz
» Intel Core i7-820QM
   4x 1.73 GHz - 3.06 GHz
» Intel Core i7-3667U
   2x 2 GHz - 3.2 GHz
» Intel Core i7-4500U
   2x 1.8 GHz - 3 GHz
» Intel Core i7-4550U
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» Intel Core i7-740QM
   4x 1.73 GHz - 2.93 GHz
» Intel Core i7-3537U
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» Intel Core i7-620M
   2x 2.66 GHz - 3.33 GHz
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   4x 1.6 GHz - 2.8 GHz
» Intel Core i7-2649M
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» Intel Core i7-4610Y
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» Intel Core i7-660LM
   2x 2.27 GHz - 3.07 GHz
» Intel Core i7-2637M
   2x 1.7 GHz - 2.8 GHz
» Intel Core i7-2657M
   2x 1.6 GHz - 2.7 GHz
» Intel Core i7-3689Y
   2x 1.5 GHz - 2.6 GHz
» Intel Core i7-2617M
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» Intel Core i7-640LM
   2x 2.13 GHz - 2.93 GHz
» Intel Core i7-620LM
   2x 2 GHz - 2.8 GHz
» Intel Core i7-680UM
   2x 1.47 GHz - 2.53 GHz
» Intel Core i7-660UM
   2x 1.33 GHz - 2.4 GHz
» Intel Core i7-640UM
   2x 1.2 GHz - 2.27 GHz
» Intel Core i7-620UM
   2x 1.06 GHz - 2.13 GHz

Surrounding CPUs

+ Intel Celeron 1037U
   2x 1.8 GHz
+ Intel Celeron 2981U
   2x 1.6 GHz
+ Intel Celeron 2980U
   2x 1.6 GHz
+ AMD Phenom II X3 N830
   3x 2.1 GHz
+ Intel Core 2 Duo SP9300
   2x 2.26 GHz
» Intel Core i7-660UM
   2x 1.33 GHz - 2.4 GHz
- AMD A8-3520M
   4x 1.6 GHz - 2.5 GHz
- Intel Celeron N4505
   2x 2 GHz - 2.9 GHz
- Intel Celeron N4500
   2x 1.1 GHz - 2.8 GHz
- Intel Celeron N4020
   2x 1.1 GHz - 2.8 GHz
- AMD A6-9210
   2x 2.4 GHz - 2.8 GHz
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Notebook Processors > Intel Core i7 > Intel Core i7 660UM Notebook Processor
Klaus Hinum, 2010-02-21 (Update: 2012-05-26)