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Intel Core i7-2640M

Intel 2640M

The Intel Core i7-2640M is the fastest dual core processor at the time of introduction in Q3 2011 and successor of the slower clocked i7-2620M. It is based on the Sandy Bridge architecture and offers Hyperthreading to handle 4 threads at once (for a better usage of the pipeline). Compared to the slower Core i5, the i7 offers a larger last level cache of 4MB. The base clock speed is 2.8 GHz but due to Turbo Boost it can reach 3.3 GHz (2 cores active) and 3.5 GHz (1 core active).

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements are the new 256Bit AVX instructions, the improved Turbo 2.0 and the integration of the graphics card into the 32nm CPU core. 

Der i7-2640M offers an integrated graphics card ( Intel HD Graphics 3000) which is clearly faster then the older Intel HD Graphics in the Arrandale CPUs. As the new GPU is included in the CPU, it is also manufactured in 32nm and shares the fast level 3 cache with the CPU cores (using a new ring bus). In the 2620M it is clocked from 650-1300MHz (Turbo Boost), and in the 2640M it should be similar.

Furthermore, an improved dual-channel DDR3 memory controller is included on the CPU die that is used by the CPU and GPU part.

Due to the improved architecture and the new Turbo Boost 2.0, the average performance of the Core i7-2640M is higher than a similar clocked Arrandale Core i7 dual core. The performance should even excel the old high-end quad core models like the Core i7-820QM.

The 35W TDP rating includes the integrated GPU and memory controller.

SeriesIntel Core i7
CodenameSandy Bridge

Series: Core i7 Sandy Bridge

Intel Core i7-2960XM compare2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-2860QM compare2.5 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-2920XM compare2.5 - 3.5 GHz4 / 8 cores8 MB L3
Intel Core i7-2760QM compare2.4 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-2820QM compare2.3 - 3.4 GHz4 / 8 cores8 MB L3
Intel Core i7-2720QM compare2.2 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-2675QM compare2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2670QM compare2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2635QM compare2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2630QM compare2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2640M « 2.8 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-2620M compare2.7 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-2649M compare2.3 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-2629M compare2.1 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-2677M compare1.8 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-2637M compare1.7 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-2657M compare1.6 - 2.7 GHz2 / 4 cores4 MB L3
Intel Core i7-2617M compare1.5 - 2.6 GHz2 / 4 cores4 MB L3
Clock Rate2800 - 3500 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache4 MB
Number of Cores / Threads2 / 4
Power Consumption (TDP = Thermal Design Power)35 Watt
Transistor Count624 Million
Manufacturing Technology32 nm
Die Size149 mm2
Max. Temperature100 °C
FeaturesHD Graphics 3000, DDR3-1066/1333 Memory Controller (max 8GB), HyperThreading, AVX, Quick Sync, Virtualization
GPUIntel HD Graphics 3000 (650 - 1300 MHz)
64 Bit64 Bit support
Architecturex86
Starting Price$346 U.S.
Announcement Date09/04/2011

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 3.07     avg: 3.1     median: 3.2 (4%)     max: 3.2 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 4009     avg: 4383     median: 4443 (27%)     max: 4506 points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 9691     avg: 9766     median: 9778 (7%)     max: 9833 points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 11067     avg: 11767     median: 11874 (8%)     max: 12037 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 5445     avg: 5549     median: 5534 (7%)     max: 5665 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 478.5     avg: 493.6     median: 489 (6%)     max: 524 s
wPrime 2.10 - wPrime 2.0 32m *
min: 15     avg: 15.5     median: 15.1 (3%)     max: 16.61 s
X264 HD Benchmark 4.0 - x264 Pass 2
min: 16.38     avg: 16.9     median: 17 (6%)     max: 17.21 fps
TrueCrypt - TrueCrypt Serpent
min: 0.124     avg: 0.1     median: 0.1 (5%)     max: 0.152 GB/s
TrueCrypt - TrueCrypt Twofish
min: 0.198     avg: 0.2     median: 0.3 (5%)     max: 0.27 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 3882     avg: 3934     median: 3927 (8%)     max: 3978 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 11     avg: 11.2     median: 11 (2%)     max: 11.66 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 25     avg: 26     median: 26 (1%)     max: 27.04 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 604     avg: 626     median: 634 (3%)     max: 639 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 64300     avg: 64523     median: 64545 (31%)     max: 64700 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 39000     avg: 39255     median: 39135 (30%)     max: 39750 MFLOPS
Windows 7 Experience Index - Win7 CPU
min: 7     avg: 7.2     median: 7.1 (91%)     max: 7.6 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 10127     avg: 10509     median: 10559 (9%)     max: 10838 Points
3DMark 11 - 3DM11 Performance Physics
min: 3902     avg: 4140     median: 4172 (11%)     max: 4320 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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Reviews for the Intel Core i7-2640M processor

 

Review Dell Latitude XT3 Convertible

An intermediate step. Dell's Latitude XT3 is a convertible PC in the classic sense - the display rotates and folds down. While the notebook offers nearly every ...
Intel Core i7-2640M | Intel HD Graphics 3000 | 13.30" | 2.2 kg
 

Review Sony Vaio VPC-SA3X9E/XI Notebook

A lean and mean performer. The latest Intel Core i7, a middle-class AMD graphics card and an SSD in an top quality upper-class subnotebook. Can the Sony VAIO at...
Intel Core i7-2640M | AMD Radeon HD 6630M | 13.00" | 1.6 kg
 

Review Asus U44SG Notebook

Like a Piece of Paper in the Wind. Thin, quiet and light - these words describe the ideal notebook for use on-the-go. What if it offered good performance as wel...
Intel Core i7-2640M | NVIDIA GeForce 610M | 14.00" | 1.7 kg
 

Review Sony Vaio VPC-SE2M9E/B Notebook

Black Beauty. Sony's Vaio S range currently encompasses over 24 models. In this review, we have the balanced Vaio VPC-SE2M9E model under the microscope. The 15....
Intel Core i7-2640M | AMD Radeon HD 6630M | 15.50" | 2 kg
 

Review Lenovo ThinkPad X1 (NWK3QGE) Notebook

Business as usual? Does the top model of Lenovo's ThinkPad X1 series deserve its price tag of 1800 Euros? The basic configuration of the model includes integrat...
Intel Core i7-2640M | Intel HD Graphics 3000 | 13.30" | 1.8 kg

Sony Vaio VPC-Z23N9E/B: AMD Radeon HD 6650M, 13.10", 1.2 kg
  Review » Review Sony Vaio VPC-Z23N9E/B Subnotebook

Lenovo ThinkPad T420s 4174-PEG: NVIDIA NVS 4200M, 14.00", 1.7 kg
  Review » Review Lenovo ThinkPad T420s 4174-PEG Notebook

Sony Vaio VPC-SE1Z9E/B: AMD Radeon HD 6630M, 15.50", 2 kg
  Review » Review Sony Vaio VPC-SE1Z9E/B Notebook

Sony Vaio VPCSE1V9E: AMD Radeon HD 6630M, 15.50", 2 kg
  External Review » Sony Vaio VPCSE1V9E

Sony Vaio VPC-F24A4E/B: NVIDIA GeForce GT 540M, 16.40", 3 kg
  External Review » Sony Vaio VPC-F24A4E/B

Sony Vaio VPCZ23Z9E: Intel HD Graphics 3000, 13.30", 1.2 kg
  External Review » Sony Vaio VPCZ23Z9E

Sony Vaio VPCZ23J9E: Intel HD Graphics 3000, 13.30", 1.2 kg
  External Review » Sony Vaio VPCZ23J9E

Asus U44SG-WO044V: NVIDIA GeForce 610M, 14.00", 1.7 kg
  External Review » Asus U44SG-WO044V

Sony Vaio VPC-SE2V9E: AMD Radeon HD 6630M, 15.60", 2 kg
  External Review » Sony Vaio VPC-SE2V9E

Lenovo ThinkPad X1 NWK3QGE: Intel HD Graphics 3000, 13.30", 1.8 kg
  External Review » Lenovo ThinkPad X1 NWK3QGE

Sony Vaio VPC-SE27FX/S: AMD Radeon HD 6630M, 15.50", 2 kg
  External Review » Sony Vaio VPC-SE27FX/S

Sony Vaio VPC-Z23N9E/B: AMD Radeon HD 6650M, 13.10", 1.2 kg
  External Review » Sony Vaio VPC-Z23N9E/B

Sony Vaio VPC-SA4W9E/XI: AMD Radeon HD 6630M, 13.30", 1.8 kg
  External Review » Sony Vaio VPC-SA4W9E/XI

Sony Vaio VPC-SE190X: AMD Radeon HD 6630M, 15.50", 2 kg
  External Review » Sony Vaio VPC-SE190X

Toshiba Portégé R830-1DZ: Intel HD Graphics 3000, 13.30", 1.5 kg
  External Review » Toshiba Portégé R830-1DZ

Sony Vaio VPC-SE1V9R: AMD Radeon HD 6630M, 15.50", 2 kg
  External Review » Sony Vaio VPC-SE1V9R

Lenovo ThinkPad T420s 4174-PEG: NVIDIA NVS 4200M, 14.00", 1.7 kg
  External Review » Lenovo ThinkPad T420s 4174-PEG

Dell Inspiron 14R-N4120: AMD Radeon HD 6630M, 14.00", 2.2 kg
  External Review » Dell Inspiron 14R-N4120

Sony Vaio VPC-SE17: AMD Radeon HD 6630M, 15.50", 2 kg
  External Review » Sony Vaio VPC-SE17

Sony Vaio VPC-SE1Z9E/B: AMD Radeon HD 6630M, 15.50", 2 kg
  External Review » Sony Vaio VPC-SE1Z9E/B

Razer Blade: NVIDIA GeForce GT 555M, 17.30", 3.2 kg
  External Review » Razer Blade

: Intel HD Graphics 3000, 0.00"
   » Sandy Bridge Core i7 Refresh

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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

» Intel Core i7-8809G
   4x 3.1 GHz - 4.2 GHz
» Intel Core i7-8709G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-8706G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-8705G
   4x 3.1 GHz - 4.1 GHz
» Intel Core i7-4940MX
   4x 3.1 GHz - 4 GHz
» Intel Core i7-6920HQ
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-5950HQ
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-4930MX
   4x 3 GHz - 3.9 GHz
» Intel Core i7-6970HQ
   4x 2.8 GHz - 3.7 GHz
» Intel Core i7-6870HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-4980HQ
   4x 2.8 GHz - 4 GHz
» Intel Core i7-4910MQ
   4x 2.9 GHz - 3.9 GHz
» Intel Core i7-5850HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-3940XM
   4x 3 GHz - 3.9 GHz
» Intel Core i7-5700HQ
   4x 2.7 GHz - 3.5 GHz
» Intel Core i7-5750HQ
   4x 2.5 GHz - 3.4 GHz
» Intel Core i7-6820HK
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6820HQ
   4x 2.7 GHz - 3.6 GHz
» Intel Core i7-6770HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4900MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4960HQ
   4x 2.6 GHz - 3.8 GHz
» Intel Core i7-6700HQ
   4x 2.6 GHz - 3.5 GHz
» Intel Core i7-4810MQ
   4x 2.8 GHz - 3.8 GHz
» Intel Core i7-4870HQ
   4x 2.5 GHz - 3.7 GHz
» Intel Core i7-8665U
   4x 1.9 GHz - 4.8 GHz
» Intel Core i7-3920XM
   4x 2.9 GHz - 3.8 GHz
» Intel Core i7-4800MQ
   4x 2.7 GHz - 3.7 GHz
» 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
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-2960XM
   4x 2.7 GHz - 3.7 GHz
» Intel Core i7-4712HQ
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-4712MQ
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-4750HQ
   4x 2 GHz - 3.2 GHz
» Intel Core i7-3635QM
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-3630QM
   4x 2.4 GHz - 3.4 GHz
» Intel Core i7-4702HQ
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-4702MQ
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-2860QM
   4x 2.5 GHz - 3.6 GHz
» Intel Core i7-2920XM
   4x 2.5 GHz - 3.5 GHz
» Intel Core i7-3615QM
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-3610QM
   4x 2.3 GHz - 3.3 GHz
» Intel Core i7-3632QM
   4x 2.2 GHz - 3.2 GHz
» Intel Core i7-2760QM
   4x 2.4 GHz - 3.5 GHz
» Intel Core i7-2820QM
   4x 2.3 GHz - 3.4 GHz
» Intel Core i7-3612QM
   4x 2.1 GHz - 3.1 GHz
» Intel Core i7-2720QM
   4x 2.2 GHz - 3.3 GHz
» Intel Core i7-2675QM
   4x 2.2 GHz - 3.1 GHz
» Intel Core i7-2670QM
   4x 2.2 GHz - 3.1 GHz
» Intel Core i7-6567U
   2x 3.3 GHz - 3.6 GHz
» Intel Core i7-2635QM
   4x 2 GHz - 2.9 GHz
» Intel Core i7-2630QM
   4x 2 GHz - 2.9 GHz
» Intel Core i7-5557U
   2x 3.1 GHz - 3.4 GHz
» Intel Core i7-4610M
   2x 3 GHz - 3.7 GHz
» Intel Core i7-940XM
   4x 2.13 GHz - 3.33 GHz
» Intel Core i7-4600M
   2x 2.9 GHz - 3.6 GHz
» Intel Core i7-4578U
   2x 3 GHz - 3.5 GHz
» Intel Core i7-920XM
   4x 2 GHz - 3.2 GHz
» Intel Core i7-3540M
   2x 3 GHz - 3.7 GHz
» Intel Core i7-4558U
   2x 2.8 GHz - 3.3 GHz
» Intel Core i7-6600U
   2x 2.6 GHz - 3.4 GHz
» Intel Core i7-6650U
   2x 2.2 GHz - 3.4 GHz
» Intel Core i7-6560U
   2x 2.2 GHz - 3.2 GHz
» Intel Core i7-3520M
   2x 2.9 GHz - 3.6 GHz
» Intel Core i7-6500U
   2x 2.5 GHz - 3.1 GHz
» 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
   2x 2.1 GHz - 3.3 GHz
» 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
   2x 1.5 GHz - 3 GHz
» Intel Core i7-740QM
   4x 1.73 GHz - 2.93 GHz
» Intel Core i7-3537U
   2x 2 GHz - 3.1 GHz
» Intel Core i7-3517U
   2x 1.9 GHz - 3 GHz
» Intel Core i7-620M
   2x 2.66 GHz - 3.33 GHz
» Intel Core i7-720QM
   4x 1.6 GHz - 2.8 GHz
» Intel Core i7-2649M
   2x 2.3 GHz - 3.2 GHz
» Intel Core i7-4610Y
   2x 1.7 GHz - 2.9 GHz
» Intel Core i7-2629M
   2x 2.1 GHz - 3 GHz
» Intel Core i7-2677M
   2x 1.8 GHz - 2.9 GHz
» 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
   2x 1.5 GHz - 2.6 GHz
» 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 Core i5-4278U
   2x 2.6 GHz - 3.1 GHz
+ Intel Core i5-3380M
   2x 2.9 GHz - 3.6 GHz
+ Intel Core i5-3360M
   2x 2.8 GHz - 3.5 GHz
+ Intel Core i5-4200M
   2x 2.5 GHz - 3.1 GHz
+ Intel Core i5-3340M
   2x 2.7 GHz - 3.4 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 i5-6260U
   2x 1.8 GHz - 2.9 GHz
- Intel Core i5-3320M
   2x 2.6 GHz - 3.3 GHz
- Intel Core i5-4258U
   2x 2.4 GHz - 2.9 GHz
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Notebook Processors > Intel Core i7 > Intel Core i7 2640M Notebook Processor
Klaus Hinum, 2011-08-14 (Update: 2012-05-26)