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
Clock Rate2800 - 3500 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache4096 KB
Number of Cores / Threads2 / 4
Max. 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
64 Bit64 Bit support
Hardware VirtualizationVT-x, VT-d
Starting Price $346 U.S.
Announcement Date09/04/2011

CPU Benchmarks

3DMark (2013): Cloud Gate Standard Physics 1280x720
0% 100%
min: 2876     avg: 2876 (25.25%)     max: 2876 Points
3DMark (2013): Ice Storm Standard Physics 1280x720
0% 100%
min: 26569     avg: 26569 (49.08%)     max: 26569 Points
Geekbench 2 - 32 Bit: Stream
0% 100%
min: 7873     avg: 7873 (86.68%)     max: 7873 Points
Geekbench 2 - 32 Bit: Memory
0% 100%
min: 6847     avg: 6847 (81.69%)     max: 6847 Points
Geekbench 2 - 32 Bit: Floating Point
0% 100%
min: 7293     avg: 7293 (43.91%)     max: 7293 Points
Geekbench 2 - 32 Bit: Integer
0% 100%
min: 6298     avg: 6298 (47.3%)     max: 6298 Points
Geekbench 2 - 32 Bit: Total Score
0% 100%
min: 6913     avg: 6913 (55.16%)     max: 6913 Points
TrueCrypt: Serpent Mean 100MB
0% 100%
min: 0.124     avg: 0.1 (7.24%)     max: 0.152 GB/s
TrueCrypt: Twofish Mean 100MB
0% 100%
min: 0.198     avg: 0.2 (13.63%)     max: 0.27 GB/s
TrueCrypt: AES Mean 100MB
0% 100%
min: 1.6     avg: 1.6 (17.92%)     max: 1.6 GB/s
X264 HD Benchmark 4.0: Pass 2
0% 100%
min: 16.38     avg: 16.9 (17.99%)     max: 17.21 fps
X264 HD Benchmark 4.0: Pass 1
0% 100%
min: 88.74     avg: 91 (49.23%)     max: 95 fps
WinRAR: Result
0% 100%
min: 2555     avg: 2632 (36.2%)     max: 2733 KB/s
wPrime 2.0x: 1024m
0% 100%
min: 478.5     avg: 493.5 (95.64%)     max: 523.632 seconds*
wPrime 2.0x: 32m
0% 100%
min: 15     avg: 15.5 (97.79%)     max: 16.614 seconds*
3DMark 11: Performance Physics 1280x720
0% 100%
min: 3902     avg: 4140.4 (31.33%)     max: 4320 points
3DMark Vantage: P CPU no PhysX 1280x1024
0% 100%
min: 10127     avg: 10509.3 (26.28%)     max: 10838 Points
3DMark 06 - CPU:
0% 100%
min: 3882     avg: 3933.5 (43.17%)     max: 3978 Points
Cinebench R11.5: CPU Single 64Bit
0% 100%
min: 1.36     avg: 1.4 (47.74%)     max: 1.36 Points
Cinebench R11.5: CPU Multi 64Bit
0% 100%
min: 3.07     avg: 3.1 (16.81%)     max: 3.2 Points
Cinebench R10: Rendering Single CPUs 64Bit
0% 100%
min: 5445     avg: 5549.1 (22.32%)     max: 5665 Points
Cinebench R10: Rendering Multiple CPUs 64Bit
0% 100%
min: 11067     avg: 11766.9 (31.21%)     max: 12037 Points
Cinebench R10: Rendering Single 32Bit
0% 100%
min: 4009     avg: 4382.9 (65.06%)     max: 4506 Points
Cinebench R10: Rendering Multiple CPUs 32Bit
0% 100%
min: 9691     avg: 9765.9 (28.08%)     max: 9833 Points
Super Pi mod 1.5 XS 1M:
0% 100%
min: 11     avg: 11.2 (99.52%)     max: 11.66 Seconds*
Super Pi mod 1.5 XS 2M:
0% 100%
min: 25     avg: 26 (99.78%)     max: 27.04 Seconds*
Super Pi Mod 1.5 XS 32M:
0% 100%
min: 604     avg: 626.2 (97.27%)     max: 639 Seconds*
SiSoft Sandra Dhrystone (MIPS):
0% 100%
min: 64300     avg: 64522.5 (30.62%)     max: 64700 MIPS
SiSoft Sandra Whetstone (MFLOPS):
0% 100%
min: 39000     avg: 39255 (30.11%)     max: 39750 MFLOPS
Windows 7 Experience Index: Processor
0% 100%
min: 7     avg: 7.2 (90.16%)     max: 7.6 points
- Range of benchmarks for this CPU
- Average benchmark score

Reviews for the Intel Core i7 2640M processor

Asus U44SG (NVIDIA GeForce 610M, 14")
» Review Asus U44SG Notebook - Review

Asus U44SG-WO044V (NVIDIA GeForce 610M, 14.0")
» Asus U44SG-WO044V - External Review

Dell Inspiron 14R-N4120 (AMD Radeon HD 6630M, 14.0")
» Dell Inspiron 14R-N4120 - External Review

Dell Latitude XT3 (Intel HD Graphics 3000, 13.3")
» Review Dell Latitude XT3 Convertible - Review

Lenovo ThinkPad T420s 4174-PEG (NVIDIA NVS 4200M, 14.0")
» Review Lenovo ThinkPad T420s 4174-PEG Notebook - Review
» Lenovo ThinkPad T420s 4174-PEG - External Review

Lenovo ThinkPad X1 NWK3QGE (Intel HD Graphics 3000, 13.3")
» Review Lenovo ThinkPad X1 (NWK3QGE) Notebook - Review
» Lenovo ThinkPad X1 NWK3QGE - External Review

Razer Blade (NVIDIA GeForce GT 555M, 17.3")
» Razer Blade - External Review

Sony Vaio VPC-F24A4E/B (NVIDIA GeForce GT 540M, 16.4")
» Sony Vaio VPC-F24A4E/B - External Review

Sony Vaio VPC-SA3X9E/XI (AMD Radeon HD 6630M, 13,3")
» Review Sony Vaio VPC-SA3X9E/XI Notebook - Review

Sony Vaio VPC-SA4W9E/XI (AMD Radeon HD 6630M, 13.3")
» Sony Vaio VPC-SA4W9E/XI - External Review

Sony Vaio VPC-SE17 (AMD Radeon HD 6630M, 15.5")
» Sony Vaio VPC-SE17 - External Review

Sony Vaio VPC-SE190X (AMD Radeon HD 6630M, 15.5")
» Sony Vaio VPC-SE190X - External Review

Sony Vaio VPC-SE1V9R (AMD Radeon HD 6630M, 15.5")
» Sony Vaio VPC-SE1V9R - External Review

Sony Vaio VPC-SE1Z9E/B (AMD Radeon HD 6630M, 15.5")
» Review Sony Vaio VPC-SE1Z9E/B Notebook - Review
» Sony Vaio VPC-SE1Z9E/B - External Review

Sony Vaio VPC-SE27FX/S (AMD Radeon HD 6630M, 15.5")
» Sony Vaio VPC-SE27FX/S - External Review

Sony Vaio VPC-SE2M9E/B (AMD Radeon HD 6630M, 15.5")
» Review Sony Vaio VPC-SE2M9E/B Notebook - Review

Sony Vaio VPC-SE2V9E (AMD Radeon HD 6630M, 15.6")
» Sony Vaio VPC-SE2V9E - External Review

Sony Vaio VPC-Z23N9E/B (AMD Radeon HD 6650M, 13.1")
» Review Sony Vaio VPC-Z23N9E/B Subnotebook - Review
» Sony Vaio VPC-Z23N9E/B - External Review

Sony Vaio VPCSE1V9E (AMD Radeon HD 6630M, 15.5")
» Sony Vaio VPCSE1V9E - External Review

Sony Vaio VPCZ23J9E (Intel HD Graphics 3000, 13.3")
» Sony Vaio VPCZ23J9E - External Review

Sony Vaio VPCZ23Z9E (Intel HD Graphics 3000, 13.3")
» Sony Vaio VPCZ23Z9E - External Review

Toshiba Portégé R830-1DZ (Intel HD Graphics 3000, 13.3")
» Toshiba Portégé R830-1DZ - 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 4980HQ
   2.8 GHz / 1 MB + 6 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 4870HQ
   2.5 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 4770HQ
   2.2 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 4578U
   3 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

- Intel Core i5 3360M
   2.8 GHz / 0.5 MB + 3 MB
- AMD A-Series (Desktop) A10-7700K
   3.4 GHz / 4 MB
- Intel Core i3 (Desktop) 3220
   3.3 GHz / 0 MB + 3 MB
- Intel Core i5 4200M
   2.5 GHz / 0.5 MB + 3 MB
- Intel Core i5 3340M
   2.7 GHz / 0.5 MB + 3 MB
» Intel Core i7 2640M
   2.8 GHz / 0.5 MB + 4 MB
+ Intel Core i5 3320M
   2.6 GHz / 512 KB + 3072 KB
+ Intel Core i5 4258U
   2.4 GHz / 512 KB + 3072 KB
+ AMD A-Series (Desktop) AMD A8-6600K
   3.9 GHz / 4096 KB
+ AMD A-Series (Desktop) AMD A10-5800K
   3.8 GHz / 4096 KB
+ Intel Core i7 840QM
   1.86 GHz / 1024 KB + 8196 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > Intel Core i7 > Intel Core i7 2640M Notebook Processor
Author: Klaus Hinum, 2011-08-14 (Update: 2012-05-26)