Intel Core i7-640UM

Intel 640UM

The Intel Core i7-640UM is a Ultra Low Voltage dual-core processor for small and light laptops. It is clocked with 1.1 - 2.26 GHz (if Turbo Boost is enabled). 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 640UM is much slower (due to the lower clock rate) but more power efficient.

A feature of the new Core i7-640UM 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 i7-640UM is faster than a similar clocked Core 2 Duo (1.2 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 2.26 GHz is not very important. All in all the I7-640UM 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.

The power consumption of 18 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 17 Watt TDP of the Core 2 Duo SL-series (CPU alone).

 

 

SeriesIntel Core i7
CodenameArrandale
Clock Rate1200 - 2266 MHz
Front Side Bus2500 MHz
Level 2 Cache512 KB
Level 3 Cache4096 KB
Number of Cores / Threads2 / 4
Max. Power Consumption (TDP = Thermal Design Power)18 Watt
Transistor Count382+177 Million
Manufacturing Technology32 nm
Die Size81+114 mm2
Max. Temperature105 °C
SocketBGA1288
FeaturesTurbo Boost (2.26 GHz max), Hyper Threading, Enhanced Speedstep, integrated GMA HD 166-500MHz
64 Bit64 Bit support
Hardware VirtualizationVT-x
Starting Price $305 U.S.
Announcement Date01/04/2010
Product Link (external)Intel Core i7 640UM

CPU Benchmarks

PCMark 05: Standard 1024x768
0% 100%
min: 4597     avg: 4597 (25.61%)     max: 4597 Points
PCMark Vantage: Result 1024x768
0% 100%
min: 5329     avg: 5329 (19.86%)     max: 5329 Points
Cinebench R10: Rendering Multiple CPUs 64Bit
0% 100%
min: 5713     avg: 5713 (13.67%)     max: 5713 Points
Cinebench R10: Rendering Single CPUs 64Bit
0% 100%
min: 2940     avg: 2940 (11.73%)     max: 2940 Points
- Range of benchmarks for this CPU
- Average benchmark score

Cinebench R10 in comparison
AMD C-Series C-50 (min)
712.5 
...
AMD A-Series A10-4600M
2856.3 
AMD A-Series A8-5557M
2871 
AMD Phenom II X4 (Desktop) 905e
2930 
Intel Core i7 640UM
2940 
Intel Pentium P6200
2996.5 
AMD A-Series A8-5550M
3028.5 
AMD A-Series A6-4400M
3063 
...
Intel Core i7 (Desktop) 4770K (max)
7716 

Reviews for the Intel Core i7 640UM processor

Fujitsu Lifebook P770 (Intel Graphics Media Accelerator (GMA) HD Graphics, 12.1")
» Fujitsu Lifebook P770 - External Review

Fujitsu LifeBook P770A (Intel Graphics Media Accelerator (GMA) HD Graphics, 12.1")
» Fujitsu LifeBook P770A - External Review

Getac V100, Intel Core i7 640UM (Intel Graphics Media Accelerator (GMA) HD Graphics, 10.4")
» Getac V100, Intel Core i7 640UM - External Review

Lenovo U160 (Intel Graphics Media Accelerator (GMA) HD Graphics, 11.6")
» Lenovo U160 - External Review

Motion F5v (Intel Graphics Media Accelerator (GMA) HD Graphics, 10.4")
» Motion F5v - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Intel Core i7

» Intel Core i7 4940MX
   3.1 GHz / 1 MB + 8 MB
» Intel Core i7 4930MX
   3 GHz / 1 MB + 8 MB
» Intel Core i7 4910MQ
   2.9 GHz / 1 MB + 8 MB
» Intel Core i7 3940XM
   3 GHz / 1 MB + 8 MB
» Intel Core i7 4900MQ
   2.8 GHz / 1 MB + 8 MB
» Intel Core i7 4960HQ
   2.6 GHz / 1 MB + 6 MB
» Intel Core i7 4810MQ
   2.8 GHz / 1 MB + 6 MB
» Intel Core i7 3920XM
   2.9 GHz / 1 MB + 8 MB
» Intel Core i7 4800MQ
   2.7 GHz / 1 MB + 6 MB
» Intel Core i7 4950HQ
   2.4 GHz / 1 MB + 6 MB
» Intel Core i7 4860HQ
   2.4 GHz / 1 MB + 6 MB
» Intel Core i7 3840QM
   2.8 GHz / 1 MB + 8 MB
» Intel Core i7 4850HQ
   2.3 GHz / 1 MB + 6 MB
» Intel Core i7 4710HQ
   2.5 GHz / 1 MB + 6 MB
» Intel Core i7 4710MQ
   2.5 GHz / 1 MB + 6 MB
» Intel Core i7 3820QM
   2.7 GHz / 1 MB + 8 MB
» Intel Core i7 3740QM
   2.7 GHz / 1 MB + 6 MB
» Intel Core i7 3720QM
   2.6 GHz / 1 MB + 6 MB
» Intel Core i7 4700HQ
   2.4 GHz / 1 MB + 6 MB
» Intel Core i7 4700MQ
   2.4 GHz / 1 MB + 6 MB
» Intel Core i7 4760HQ
   2.1 GHz / 1 MB + 6 MB
» Intel Core i7 2960XM
   2.7 GHz / 1 MB + 8 MB
» Intel Core i7 4712HQ
   2.3 GHz / 1 MB + 6 MB
» Intel Core i7 4712MQ
   2.3 GHz / 1 MB + 6 MB
» Intel Core i7 4750HQ
   2 GHz / 1 MB + 6 MB
» Intel Core i7 3635QM
   2.4 GHz / 1 MB + 6 MB
» Intel Core i7 3630QM
   2.4 GHz / 1 MB + 6 MB
» Intel Core i7 4702HQ
   2.2 GHz / 1 MB + 6 MB
» Intel Core i7 4702MQ
   2.2 GHz / 1 MB + 6 MB
» Intel Core i7 2860QM
   2.5 GHz / 1 MB + 8 MB
» Intel Core i7 2920XM
   2.5 GHz / 1 MB + 8 MB
» Intel Core i7 3615QM
   2.3 GHz / 1 MB + 6 MB
» Intel Core i7 3610QM
   2.3 GHz / 1 MB + 6 MB
» Intel Core i7 3632QM
   2.2 GHz / 1 MB + 6 MB
» Intel Core i7 2760QM
   2.4 GHz / 1 MB + 6 MB
» Intel Core i7 2820QM
   2.3 GHz / 1 MB + 8 MB
» Intel Core i7 3612QM
   2.1 GHz / 1 MB + 6 MB
» Intel Core i7 2720QM
   2.2 GHz / 1 MB + 6 MB
» Intel Core i7 2675QM
   2.2 GHz / 1 MB + 6 MB
» Intel Core i7 2670QM
   2.2 GHz / 1 MB + 6 MB
» Intel Core i7 2635QM
   2 GHz / 1 MB + 6 MB
» Intel Core i7 2630QM
   2 GHz / 1 MB + 6 MB
» Intel Core i7 4610M
   3 GHz / 0.5 MB + 4 MB
» Intel Core i7 940XM
   2.13 GHz / 1 MB + 8 MB
» Intel Core i7 4600M
   2.9 GHz / 0.5 MB + 4 MB
» Intel Core i7 920XM
   2 GHz / 1 MB + 8 MB
» Intel Core i7 3540M
   3 GHz / 0.5 MB + 4 MB
» Intel Core i7 4558U
   2.8 GHz / 0.5 MB + 4 MB
» Intel Core i7 3520M
   2.9 GHz / 0.5 MB + 4 MB
» Intel Core i7 2640M
   2.8 GHz / 0.5 MB + 4 MB
» Intel Core i7 840QM
   1.86 GHz / 1 MB + 8 MB
» Intel Core i7 2620M
   2.7 GHz / 0.5 MB + 4 MB
» Intel Core i7 4600U
   2.1 GHz / 0.5 MB + 4 MB
» Intel Core i7 4650U
   1.7 GHz / 0.5 MB + 4 MB
» Intel Core i7 3687U
   2.1 GHz / 0.5 MB + 4 MB
» Intel Core i7 4510U
   2 GHz / 0.5 MB + 4 MB
» Intel Core i7 640M
   2.8 GHz / 0.5 MB + 4 MB
» Intel Core i7 820QM
   1.73 GHz / 1 MB + 8 MB
» Intel Core i7 3667U
   2 GHz / 0.5 MB + 4 MB
» Intel Core i7 4500U
   1.8 GHz / 0.5 MB + 4 MB
» Intel Core i7 4550U
   1.5 GHz / 0.5 MB + 4 MB
» Intel Core i7 740QM
   1.73 GHz / 1 MB + 6 MB
» Intel Core i7 3537U
   2 GHz / 0.5 MB + 4 MB
» Intel Core i7 3517U
   1.9 GHz / 0.5 MB + 4 MB
» Intel Core i7 620M
   2.66 GHz / 0.5 MB + 4 MB
» Intel Core i7 720QM
   1.6 GHz / 1 MB + 6 MB
» Intel Core i7 2649M
   2.3 GHz / 0.5 MB + 4 MB
» Intel Core i7 4610Y
   1.7 GHz / 0.5 MB + 4 MB
» Intel Core i7 2629M
   2.1 GHz / 0.5 MB + 4 MB
» Intel Core i7 2677M
   1.8 GHz / 0.5 MB + 4 MB
» Intel Core i7 660LM
   2.27 GHz / 0.5 MB + 4 MB
» Intel Core i7 2637M
   1.7 GHz / 0.5 MB + 4 MB
» Intel Core i7 2657M
   1.6 GHz / 0.5 MB + 4 MB
» Intel Core i7 3689Y
   1.5 GHz / 0.5 MB + 4 MB
» Intel Core i7 2617M
   1.5 GHz / 0.5 MB + 4 MB
» Intel Core i7 640LM
   2.13 GHz / 0.5 MB + 4 MB
» Intel Core i7 620LM
   2 GHz / 0.5 MB + 4 MB
» Intel Core i7 680UM
   1.47 GHz / 0.5 MB + 4 MB
» Intel Core i7 660UM
   1.33 GHz / 0.5 MB + 4 MB
» Intel Core i7 640UM
   1.2 GHz / 0.5 MB + 4 MB
» Intel Core i7 620UM
   1.06 GHz / 0.5 MB + 4 MB

Surrounding CPUs

- AMD Phenom II X3 P860
   2 GHz / 1.5 MB
- AMD Phenom II X4 P940
   1.7 GHz / 2 MB
- AMD Turion II N570
   2.7 GHz / 2 MB
- AMD Turion II Ultra M660
   2.7 GHz / 2 MB
- Intel Core i5 560UM
   1.33 GHz / 0.5 MB + 3 MB
» Intel Core i7 640UM
   1.2 GHz / 0.5 MB + 4 MB
+ Intel Pentium Dual Core T4500
   2.3 GHz / 1024 KB
+ Intel Core 2 Duo T7500
   2.2 GHz / 4096 KB
+ AMD Athlon 64 X2 (Desktop) FX-60
   2.6 GHz / 2048 KB
+ Intel Core 2 Duo SL9600
   2.13 GHz / 6134 KB
+ Intel Core 2 Duo P7450
   2.13 GHz / 3072 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > Intel Core i7 > Intel Core i7 640UM Notebook Processor
Author: Klaus Hinum, 2010-02-20 (Update: 2012-05-26)